SKIN THAT DOESN'T FEEL TIGHT · HAIR YOU LOVE TO TOUCH · 60-DAY MONEY-BACK · DERMATOLOGICALLY TESTED
SKIN THAT DOESN'T FEEL TIGHT · HAIR YOU LOVE TO TOUCH · 60-DAY MONEY-BACK · DERMATOLOGICALLY TESTED
SKIN THAT DOESN'T FEEL TIGHT · HAIR YOU LOVE TO TOUCH · 60-DAY MONEY-BACK · DERMATOLOGICALLY TESTED
SKIN THAT DOESN'T FEEL TIGHT · HAIR YOU LOVE TO TOUCH · 60-DAY MONEY-BACK · DERMATOLOGICALLY TESTED
PICKI NIKI Filtered Shower Head in Black with Vitamin C Gel Filter
Healthy hair and skin benefits with HydroCure Capsule Technology
PICKI NIKI Shower Head Black – exploded view of all filter components
PICKI NIKI Filtered Shower Head in White with Vitamin C Gel Filter
PICKI NIKI Duschkopf Weiss – Explosionsansicht aller Filterkomponenten
PICKI NIKI Filtered Shower Head White in bathroom interior
PICKI NIKI Filtered Shower Head in Black with Vitamin C Gel Filter
Filtered Shower Head with Vitamin C
Healthy hair and skin benefits with HydroCure Capsule Technology
Filtered Shower Head with Vitamin C
Filtered Shower Head with Vitamin C
PICKI NIKI Shower Head Black – exploded view of all filter components
Filtered Shower Head with Vitamin C
PICKI NIKI Filtered Shower Head in White with Vitamin C Gel Filter
PICKI NIKI Duschkopf Weiss – Explosionsansicht aller Filterkomponenten
PICKI NIKI Filtered Shower Head White in bathroom interior
Filtered Shower Head with Vitamin C

Filtered Shower Head with Vitamin C

99 €
  • Smoother-feeling hair · less residue
  • Softer-feeling skin · no tightness
  • Vitamin C gel · neutralises chlorine
Independently lab-tested: chlorine, pH & skin
Color
Subscribe & Save 20%

Subscribe & Save 20%

Start Your 60-Day Trial

We stand behind the quality of our PICKI NIKI filtered shower head. If for any reason you're not satisfied, we offer a no-fuss money-back guarantee.

60-day money-back guarantee on the shower head - whether you buy it on its own or in a starter set, and even if you've opened and used it, return it within 60 days for a full refund.

Separately-ordered replacement filters can be returned unopened - your shower head already ships with its filters installed, so you can try it without opening any extras.

Your satisfaction is our priority.

What customers report after switching

Thousands of customers across the UK and EU have switched to PICKI NIKI. They commonly mention:

  • Softer-feeling skin – Reduces residue from chlorine and hard-water minerals
  • Easier-to-style hair – Less mineral residue on the hair shaft after rinsing
  • Smoother-feeling hair – Customers describe more manageable hair after switching from unfiltered tap water
  • Improved water pressure – 200 precision micro-holes for a powerful yet gentle stream
  • Suitable for the whole family – Reduces chlorine and captures rust and sediment from your shower water

Dermatologically tested for skin compatibility (P&K Skin Clinical Research Centre, n=30, non-irritant) and backed by our 60-day money-back guarantee. Learn more

Hard, mineral-rich water can be a burden on skin and hair. The PICKI NIKI filtered shower head is engineered for skin and hair contact under shower conditions.

It binds the calcium and magnesium minerals – the culprits behind hard water – helping reduce the residue they leave behind.

Use against hard water: ascorbic acid binds with magnesium and calcium minerals, making them water-soluble. This helps reduce the residue they leave on skin, hair and in the shower cubicle.

The lime, calcium carbonate (CaCO3), combines with ascorbic acid (C5H5O5CH2OH). The product is CO2 (carbon dioxide gas that simply goes into the atmosphere), H2O (water) and Ca(C6H7O6)2 (calcium ascorbate, which is water-soluble).

Use against chlorine: Reduces residual chlorine to non-detectable levels (KEWI lab test).

One gram of ascorbic acid neutralises the free chlorine in roughly 400 litres (about 100 gallons) of water at 1 mg/L. The reaction is very fast.

C5H5O5CH2OH + HOCL → C5H3O5CH2OH + HCl + H2O

Ascorbic acid + hypochlorous acid → dehydroascorbic acid + hydrochloric acid + water

About 2.5 parts ascorbic acid are needed to neutralise 1 part chlorine. Since ascorbic acid is weakly acidic, the pH of the treated water can drop slightly in weakly alkaline water. Slightly acidic water is perfect for the skin barrier, scalp and hair.

Look forward to a change for softer skin, silkier hair and a shower that feels like a gentle waterfall.

The Vitamin C gel filter is built around a small set of functional ingredients.

Ascorbic acid (vitamin C): the active filtration ingredient. It neutralises free chlorine (KEWI 2020 lab) and may reduce the mineral residue that hard water leaves on skin, hair and in the shower cubicle.

Glycerin: a humectant used in the gel formulation.

Free shipping from €50 in Germany, €100 across the rest of the EU, and £50 in the UK.

We want your experience with us to be as smooth and straightforward as possible, starting with shipping.

As soon as you place your order, our team quickly prepares your package for shipment.

You will receive a tracking number so you can keep an eye on your package's journey.

Our reliable shipping partners will ensure that your PICKI NIKI filter shower head arrives promptly and in perfect condition, ready to revolutionize your shower experience.

Contains and already installed:

1x shower head (in black or white)
1x vitamin C head filter (tea tree)
1x sediment handle filter
1x additional water spray plate

Ready to use the moment it arrives - nothing else needed to start.

Manufacturer & product safety information

Manufacturer:
Picki Niki GmbH, Torstraße 172, 10115 Berlin, Germany
E-Mail: hello@pickiniki.com

Product: Filtered Shower Head with Vitamin C · Model: PN-SH-1-B

Safety and usage information: Please follow the instructions included with the product or see the online manual.

AS SEEN IN

🇬🇧Featured on UK national TV

As Seen onITV’s This Morning

One of the UK’s most-watched daytime television programmes featured PICKI NIKI in a segment on hard water and shower innovation.

PICKI NIKI featured on ITV This Morning during a segment on hard water and shower innovation
As seen on ITV This Morning
Filtered Shower Head with Vitamin C
99 €
01 · WHAT YOU GET

What Your Shower Becomes

Filter the water, and the difference shows up where you actually feel it - every shower, without changing a single product.

Skin That Doesn't Feel Tight

Skin That Doesn't Feel Tight

Step out without the dry, over-showered feeling. Just calm, comfortable skin - every single day.

Hair You Want to Touch

Hair You Want to Touch

Less mineral residue weighing it down - softer, smoother, easier to run your fingers through.

No More Filmy Residue

No More Filmy Residue

Vitamin C turns hard-water minerals water-soluble, so they rinse away instead of clinging to skin and hair.

A Scent That Resets You

A Scent That Resets You

Tea Tree, Baby Powder or unscented - a light note that turns the shower into the best two minutes of your day.

Stronger Spray, Softer on You

A 200 micro-hole plate keeps the flow full and satisfying - filtered, never weaker.

On in 20 Seconds, Yours Anywhere

Screws onto your existing arm - no plumber, no tools - with a pouch so it travels with you.

After Before
Before
After
London

Fuller-Looking Hair, Less Breakage

Chlorine and hard-water minerals leave hair drier and more brittle, so it snaps and breaks more easily - and over time can start to look thinner and flatter. Take that daily stress away, and hair holds its body and strength better: less breakage, fuller-looking, wash after wash. (Thinning has many causes, including genetics; for medical hair loss, see a professional.)

After Before
Before
After
Barcelona

Softer, Shinier Hair

Hard water leaves a dulling mineral film on every strand that no conditioner fully rinses away. Filter it out, and hair feels the difference from the very first wash - softer, glossier and easier to run your fingers through. The same hair, just without the residue dragging it down.

After Before
Before
After
Cyprus

The Clean Base Your Skincare Needs

You invest in serums and creams - then every shower coats your skin in the chlorine and hard-water minerals they have to fight. Filter the water, and your routine finally has a clean base to work on: skin that looks fresher and more radiant, so the products you already love can actually do their job. Great skin starts with the water you wash in.

After Before
Before
After
Berlin

Calmer, Less Flaky-Looking Scalp

Chlorine and hard water strip moisture from the scalp with every shower, which can leave it dry, tight and flaky-looking over time. Filtered water lifts that daily burden, so the scalp has room to stay calmer and more balanced - the foundation for hair that looks and feels better. One environmental factor you can actually control.

Real, unretouched customer photos. Individual observations; results can vary.

02 · THE PROOF

Real Customers. Real Showers. Real Change.

They tested it on their own water.

Paris
Los Angeles
Florida
New York
Frankfurt
Hamburg
London
London
London

As tested by the UK press

Recommended by the UK press, year after year

Independently tested – 2026 and 2025 in a row.

2026
Tested by

Best for Water Hardness & Best Flow Rate

GHI Lab Panel · 83/100

"Panellists told us their hair felt softer and healthier."

– Good Housekeeping Institute
2025
Tested by

The UK's #1 Filtered Shower Head

IndyBest · Best Overall 2025

"These in-shower hard-water filters could make a difference to your hair health."

– The Independent
VERIFIED REVIEWS

What Customers Are Saying

★★★★★4.9 on OkendoBased on 656 reviews
★★★★★

Highly recommended!

I live in a very hard water area of London and have noticed my hair and skin suffering from dryness and dullness, regardless of the quality of products I used. I filter my drinking water, so why not my shower water too? Picki Niki's showerhead is beautifully designed to feel compact and lightweight to hold. It enhances water pressure, and the lovely citrus fragrance adds a subtle touch that makes every shower feel like a spa experience!

Amanda T.London, UKVerified buyer
★★★★★

Filtered shower head with Vitamin C

I am extremely happy with the results of using this shower head, it completely exceeded my expectations. After only a couple of weeks of usage my skin is much softer and my hair is very shiny and soft. I bought this product because I live in London and the water is hard and my hair was dry and dull. I would 100% recommend. The delivery was also seamless.

Nicola C.London, UKVerified buyer
★★★★★

Great shower

I bought the shower head after a bit of research and it's been great. I'm based in the UK and it has improved the pressure from the electric shower. Additionally the filter provides a higher quality water, noticeable on hair and skin, and straight away you can tell the shower glass doors are much less streaky and easier to clean.

Gaizka B.United KingdomVerified buyer

Verbatim 5-star reviews from verified buyers (Okendo).

Review authenticity: reviews are collected via our review provider Okendo; review invitations are sent after an order. Reviews marked “Verified Buyer” come from customers with a confirmed purchase.

03 · SEE IT WORK

See It Clean Your Water - Step by Step

STEP 1: Sediment Filtration

A dedicated 5μm pre-filter catches rust, pipe debris and grit from old plumbing - the coarse stuff most shower filters skip, before it ever reaches your skin and hair.

STEP 2: Chlorine Neutralised on Contact

Vitamin C reacts with free chlorine by redox as water flows through, cutting it to non-detectable (KEWI lab, 2020). Daily chlorine can leave skin drier and hair rougher - filtered water can feel gentler.

STEP 3: Less Visible Hard-Water Residue

The same Vitamin C stage makes calcium and magnesium more water-soluble, so hard-water residue rinses away instead of building up - less visible film on skin and hair. It does not soften your water.

STEP 4: Stronger Spray, Less Water

A 200-hole precision plate gives a stronger feel with up to 35% less water - better pressure, a smaller bill, and a gentler spray on skin and hair, shower after shower.

HOW IT WORKS

Cleaner Shower Water Your Skin and Hair Can Feel

Two problems. Two different solutions.

Rust
Pipe debris
Particles
Sediment filtration
1Step 1

Sediment filtration

Removes rust, particles and pipe debris, regardless of flow rate or temperature. Hot water accelerates the release of rust and debris from old pipes - 5μm melt-blown cartridge in sealed full-flow housing, 100% pass-through, no bypass.

5μmmelt-blown PP
≥95%of particles above 5μm
Works in anyflow rate or temperature
Chlorine
Calcium(hard water)
Magnesium(hard water)
Vitamin C filtration
2Step 2

Vitamin C filtration

A high-concentration Vitamin C formula that neutralises free chlorine (KEWI 2020 lab) and may reduce the mineral-residue feel from calcium and magnesium. More active in warm water - suited to hot showers.

Reacts on contact~0.1 sec contact time at shower flow
More activein warm water
Designed forhot showers
Together
Physical filtration
+
Chemical filtration
=
Complete shower filtration

Designed to be used together - not separately.

Step 1 removes what you can see and Step 2 neutralises what you can't - together they deliver cleaner, better shower water.

04 · WHY PICKI NIKI

The Filter Built for Showering - Not a Kitchen Tap

  Vitamin C Gel PICKI NIKIActivated Carbon Adsorbent mediaKDF 55 Zinc/copper redoxMineral / Ceramic Beads No published mechanism
Built forShowersDrinking waterDrinking / industrialMarketing add-on
Used byPICKI NIKI; Korean K-beauty filtered shower headsMost pitcher and faucet filters; many premium shower filtersIndustrial water treatment; some premium shower filtersMost cheap 'Vitamin C ball' shower heads and ionic/wellness products
Hot shower water (40 °C+)✓Reaction speeds up with heat✕Desorption risk above 40 °C; hidden capacity loss as adsorption saturates~Stable but slow—
Chlorine neutralisation✓Direct chemical reaction (AWWA C651-05)~Adsorption - 25-40 sec EBCT needed (WQA)~98% claimed at industrial flow; drops at shower flow✕No published chlorine mechanism
Reduces hard-water residue✓Vitamin C makes calcium and magnesium more water-soluble, so residue rinses away✕✕✕
Sediment, rust & debris✓Melt-blown PP cartridge, sealed full-flow housing - 100% pass-through✕Pure adsorbent media - no sediment removal✕Pure media - no sediment removal✕
End-of-life signal✓Visible - gel consumed✕Invisible decay✕✕
Verified: free chlorine reduced to non-detectable1 at ~0.1 second contact time under full shower flow.2 The ascorbic acid + chlorine redox reaction5 runs faster with heat, not slower - unlike granular activated carbon, which needs 25-40 seconds of empty-bed contact time for chlorine reduction and can release previously-adsorbed compounds at hot temperatures.3,4
1 KEWI test (2020): 100 L synthetic water, 0.19 mg/L free chlorine → non-detectable, flow 2.52 L/min, 22 °C. 2 KTR contract test (2023): showerhead flow 7.5 L/min measured. Cartridge gel 35 g (~27 mL), void volume ~13-18 mL → residence time ~0.10-0.14 s at 7.5 L/min. 3 WQA / Fresh Water Systems: catalytic chlorine reduction by granular activated carbon requires 25-40 s empty-bed contact time. 4 Ania et al. 2004, Carbon (DOI 10.1016/j.carbon.2004.01.010): hot conditions can desorb previously-adsorbed compounds from activated carbon back into the flow. 5 AWWA C651-05 (2005 revision): adds ascorbic acid as an approved dechlorination agent.
Why Not Carbon?

Chlorine Neutralised the Moment Water Touches It

Chlorine removal is a race against contact time. Here's how long each technology needs - versus how long water is actually inside the filter.

Activated Carbon

Adapted from drinking-water tech

25-40sec

Contact time required

  • Built for slow, cold drinking water
  • Relies on physical adsorption inside the filter
  • Needs 25-40 sec empty-bed contact time (WQA)
  • A shower gives it a fraction of that

Picki Niki - Vitamin C

Built for shower water

~0.1sec

Reaction on contact

  • Reacts the moment water touches the gel
  • Direct redox reaction neutralises free chlorine
  • ~0.10-0.14 sec residence time at 7.5 L/min shower flow
  • Runs faster with heat, not slower

~0.1 sec: residence time calculated from KTR-measured 7.5 L/min shower flow and Vitamin C cartridge void volume. 25-40 sec: WQA empty-bed contact time for granular activated carbon. Free chlorine reduced to non-detectable in KEWI lab testing (2020). See references below.

BACKED BY SCIENCE

Independently Lab-Tested - Proof, Not Promises

No guesses. Every claim tested under real shower conditions - the water hot, the flow full, the way you actually shower.

  • Chlorine reduction

    Free chlorine reduced to non-detectable in independent lab testing (KEWI, 2020).²

  • pH stability

    Stays skin-friendly across full shower flow rates (KTR, 2023).⁴

  • Dermatologically tested

    Non-irritant - P&K Skin Clinical Research Centre (n=30).¹

Independently Lab-Tested - Proof, Not Promises

Proven performance

Tested under real shower conditions, not just lab simulations.

Safe for daily use

Stable pH and non-irritant for sensitive skin.

Trusted results

Verified by independent Korean testing institutions.

Better water. Better showering.

Because every detail is backed by science.

WHY GERMANY & KOREA

Tested Where Filter ClaimsAre Taken Seriously

PICKI NIKI is engineered in Germany for European hard-water conditions. But it is developed, manufactured and tested in Korea.

There is a reason for that.

Korea is one of the world's most mature shower-filtration markets, where consumers pay close attention to the relationship between water, skin and hair.

It is also a market where product claims are regularly scrutinised and independently tested.

We evaluated manufacturing options across multiple countries. Korea was a more expensive choice. It was also the one we trusted most.

Korea

PICKI NIKI combines German engineering for European water conditions with Korean filtration expertise and beauty culture.

05 · THE PROBLEM

You Don't Have a Skin Problem. You Have a Water Problem.

Hard water, chlorine and pipe sediment are three things a standard shower head lets straight through - and skin and hair are where you feel it first.

Chlorine
Chlorine
17Cl₂

Added to UK tap water to keep it safe, and nothing removes it before your shower. With daily exposure skin can feel drier and hair rougher - and it's the smell in a warm bathroom.

Hard water
Hard water
20Ca 12Mg

Calcium and magnesium leave a residue many describe as tight or dry, and cling to the hair shaft, so hair can feel rougher and harder to style over time.⁷ ⁹

Rust & sediment
Rust & sediment
26Fe

Older pipes shed rust and fine particles the naked eye never sees - until you pull the filter out and look. Not in every home, but real where it happens, and a reason to filter.

Day after day, this combination can affect:
Skin barrier
Skin barrier

After every shower the skin can feel tight, dry or rough, especially if it's more sensitive - that stripped, over-washed feeling that never quite settles.

After every shower the skin can feel tight, dry or rough, especially if it's more sensitive - that stripped, over-washed feeling that never quite settles.

Hair strength
Hair strength

Mineral residue and chlorine can build up on the hair shaft, leaving it looking dull, frizzy and harder to style - a little more each wash.

Mineral residue and chlorine can build up on the hair shaft, leaving it looking dull, frizzy and harder to style - a little more each wash.

Scalp balance
Scalp balance

Breakage and thinning-looking hair aren't only genetic - chlorine and hard water can leave strands drier and more brittle over time. (Medical hair loss? See a professional.)

Breakage and thinning-looking hair aren't only genetic - chlorine and hard water can leave strands drier and more brittle over time. (Medical hair loss? See a professional.)

Most filters catch one. Not all three.

THE ONE EVERYONE SHARES

Remember How Your Skin Felt After the Pool?

That tight, dry skin. Frizzy, straw-like hair. The chlorine smell that clings even after you towel off. Here's the uncomfortable part: the same chlorine runs through your shower at home - not once on holiday, but every single day.
Chlorinated swimming-pool water
  • Added to keep water safeIn the UK it's added to tap water by law; across most of Europe it's standard practice - and nothing removes it again before it reaches your shower.
  • Safe to drink, hard on skinWith daily exposure, warm chlorinated water can strip the skin's natural oils and dry out hair - 'squeaky-clean-but-tight' isn't clean, it's stripped.
  • You can smell itThat pool-like note in a warm bathroom is the chlorine that's already in your water.
Chlorine can strip the skin's natural oils and dry hair, especially with daily or repeated exposure. PICKI NIKI's Vitamin C filter neutralises free chlorine on contact - reduced to non-detectable in independent lab testing (KEWI, 2020).
Is your area affected?

Where You Shower, the Water Runs Hard

60%
of UK homes shower in hard water.

You've seen what it leaves on the glass and the kettle. It's in your shower water too - and it doesn't rinse off your skin and hair any differently.

Limescale on the shower glass
Limescale on the shower glass
Scale on the showerhead
Scale on the showerhead
The kettle everyone knows
The kettle everyone knows

Where our customers shower on the soft-to-hard scale

Stockholm 50-90 mg/L
London 250-300 mg/L48% of you
Berlin 250-430 mg/L
0100200300400+ mg/L

Total hardness as calcium carbonate (CaCO3). London 250-300 mg/L (Thames Water); Berlin 250-430 mg/L (Berliner Wasserbetriebe); Paris 240-300 mg/L (Eau de Paris); Rome ~310 mg/L (ACEA); Madrid 140-220 mg/L, semi-hard (Canal de Isabel II); Stockholm 50-90 mg/L, soft (Stockholm Vatten). Limescale imagery is environmental (fixtures), not a skin claim.

See for yourself

The Water You Can't See - Until You Pull the Filter

Every sediment filter comes out the same way. This is rust and pipe sediment it caught from a normal home - before it reached your skin.

Straight From a Normal Home

The sediment filter after everyday use on a standard mains supply - this is the rust and pipe sediment it caught before the water reached your skin.

It Comes Out Brown

Not a one-off. Pull the sediment filter on most older plumbing and it looks like this - fine rust and particles you never see in clear-looking water.

Weeks to Months, Depending on Your Pipes

A fresh white filter next to one that's been in use - that colour is pipe sediment. In older plumbing it can brown within days; in modern pipes it stays lighter far longer. Replace it by around two months either way.

06 · THE OFFER

Everything You Need to Start

Every head arrives ready to use - in the box:

  • the shower head (black or white),
  • a Vitamin C gel filter (Tea Tree),
  • a sediment handle filter, and an
  • extra water spray plate.

Nothing else needed to start. Then choose how you stock up on filters:

01

Just the Head

Everything above, ready to shower the day it arrives - the simplest way to start.

02

Starter Set - 30% Off Your Extras

Keep the head at list price and stock up: add 8 filters of your choice and every extra is 30% off - around six months of filtered showers.

03

Subscribe & Save - 20%

Filters delivered automatically on your schedule, 20% off every refill. Pause, skip or cancel anytime.

PICKI NIKI starter set backed by a 60-day money-back guarantee

Try It Risk-Free - 60-Day Money-Back Guarantee

Not for you? Return the shower head within 60 days for a full refund - even opened and used. Separately-ordered replacement filters can be returned unopened.

60-day full refund
Independently lab-tested
Free shipping
GOOD TO KNOW

Frequently Asked Questions

07 · SPECS & DETAILS

Specifications

PICKI NIKI is a Vitamin C shower filter, designed in Germany, made in Korea - engineered for hot water, high flow and real shower conditions. Two filters in one head: a melt-blown PP sediment pre-filter in the handle, plus a Vitamin C gel filter that neutralises free chlorine. Independently tested at three Korean labs (P&K, KEWI, KTR).

Cartridge life - Vitamin C Gel
every 2-4 weeks (visible end-of-life: gel consumption) depending on usage and water hardness
Cartridge life - Sediment Filter (in handle)
every 1-3 months (melt-blown PP pre-filter, sealed full-flow housing, replace as a 3-pack) depending on usage, water quality, and household water pipes
Fit
Universal - any standard shower hose, no plumber required
Filtration
Vitamin C gel reduces free chlorine to non-detectable levels (KEWI 2020 lab test) and may reduce the visible hard-water residue on skin and hair.
Chlorine neutralisation
Independently lab-tested - KEWI Korea (2020)
pH balancing
Independently lab-tested - KTR Korea (2023)
Sediment filtration
Tested for rust & pipe particles
Water quality
60-parameter drinking-water panel - KEWI Korea (2020)
Dermatological safety
Non-irritant - Skin Irritation Index 0.03, P&K Skin Clinical, n=30 (2023)
Atopy-friendly
Certified by the World Atopy Association (2025-2027)⁵
Material
PP polypropylene food-grade, ABS housing
Operating temperature
Up to 50 °C - effective at full shower temperature
Flow rate
6-8 L/min (low-flow restrictor to everyday setting) versus 12-15 L/min for standard shower heads. The 200 micro-hole spray plate keeps pressure strong.
Warranty
60-day money-back guarantee
EVIDENCE & SOURCES

References

Sources for individual claims, marked with footnote numbers. Peer-reviewed papers are cited in support of underlying mechanisms, not as proof of product efficacy.

  1. P&K Skin Clinical Research Centre. Primary Skin Irritation Test. Seoul, Korea. 2023.Independent open-label, single-arm... lab test

    P&K Skin Clinical Research Centre. Primary Skin Irritation Test. Seoul, Korea. 2023.

    Independent open-label, single-arm 24-hour patch test on Vitamin C filter material. n=30 (28F/2M, mean age 47.2 years). Skin Irritation Index 0.03 (range 0.00-0.25 = non-irritant). Zero adverse events. Frosch and Kligman + CTFA + Draize protocols, COLIPA Walker 1996 guideline. Sample size and design are appropriate for a tolerability/irritation screen, not a clinical efficacy trial.

    lab test
  2. Korea Environment and Water Works Institute (KEWI). Residual Chlorine Removal Test. Seoul, Korea. 2020.100... lab test

    Korea Environment and Water Works Institute (KEWI). Residual Chlorine Removal Test. Seoul, Korea. 2020.

    100 L synthetic water at 0.19 mg/L free residual chlorine, passed through Vitamin Filter. Outlet: not detected. Flow 2.52 L/min. T = 21-23 degrees C.

    Note: real shower conditions are typically higher pressure and warmer than this laboratory test. The Vitamin C gel cartridge is engineered as a self-regulating system: higher pressure releases more Vitamin C from the gel matrix, and higher temperature accelerates the chlorine-neutralisation reaction. Under typical shower conditions these dynamics are expected to keep real-use performance broadly comparable to the laboratory result.

    lab test
  3. Korea Environment and Water Works Institute (KEWI). 60-Parameter Drinking Water Quality Test. Seoul, Korea.... lab test

    Korea Environment and Water Works Institute (KEWI). 60-Parameter Drinking Water Quality Test. Seoul, Korea. 2020.

    60-parameter Korean Drinking Water Standard test on filtered water. All parameters within safety thresholds. Heavy metals (Pb, As, Hg, Cd, Cr) not detected; residual chlorine not detected; total trihalomethanes 0.035 mg/L; pH 7.0; turbidity 0.06 NTU.

    lab test
  4. Korea Testing and Research Institute (KTR). pH-Neutralization Performance Test. Gyeonggi-do, Korea. 2023.Alkaline test water... lab test

    Korea Testing and Research Institute (KTR). pH-Neutralization Performance Test. Gyeonggi-do, Korea. 2023.

    Alkaline test water (NaOH-adjusted to pH 9.0 and pH 10.0) passed through Vitamin C + shower filter combination at 7.5 L/min. Results: pH 9.0 to 6.45; pH 10.0 to 7.38. Test period 2022-12-02 to 2022-12-20.

    lab test
  5. World Atopy Association (WAA). Atopy-friendly Product Certificate. 2025.Valid 2025-03-06 to 2027-03-05. Industry association certification,... certification

    World Atopy Association (WAA). Atopy-friendly Product Certificate. 2025.

    Valid 2025-03-06 to 2027-03-05. Industry association certification, not a clinical study.

    certification
  6. International Certification Registrar Ltd. (ICR). ISO 9001:2015 (quality), ISO 14001:2015 (environmental), ISO 37001 (anti-bribery),... certification

    International Certification Registrar Ltd. (ICR). ISO 9001:2015 (quality), ISO 14001:2015 (environmental), ISO 37001 (anti-bribery), ISO 37301 (compliance), ISO 45001 (occupational health and safety). 2025-2028.

    Manufacturing-partner management-system certifications. Initial issue 2025-09-16, valid through 2028-09-15. Scope: showerhead and water filter.

    certification
  7. Jabbar-Lopez ZK, Craven J, Logan K, et al. Longitudinal analysis of the effect of... peer reviewed

    Jabbar-Lopez ZK, Craven J, Logan K, et al. Longitudinal analysis of the effect of water hardness on atopic eczema: evidence for gene-environment interaction. British Journal of Dermatology. 2020.

    peer reviewed DOI: 10.1111/bjd.18597
  8. Pullar JM, Carr AC, Vissers MCM. The Roles of Vitamin C in Skin Health.... peer reviewed

    Pullar JM, Carr AC, Vissers MCM. The Roles of Vitamin C in Skin Health. Nutrients. 2017.

    peer reviewed DOI: 10.3390/nu9080866
  9. Luqman MW, Ramzan M, Khan MA, et al. Effects of hard water on hair.... peer reviewed

    Luqman MW, Ramzan M, Khan MA, et al. Effects of hard water on hair. International Journal of Trichology. 2018.

    peer reviewed PMC3927171
  10. Kymera International. KDF-55/85 Process Media Technical Bulletin (POE Whole-House and Point-of-Use). 2023."More than 98%... industry

    Kymera International. KDF-55/85 Process Media Technical Bulletin (POE Whole-House and Point-of-Use). 2023.

    "More than 98% of chlorine is removed by KDF in home water treatment systems (90% in shower water filters due to high flow rate)." Manufacturer-published flow-rate distinction confirms drinking-water-system performance figures do not transfer 1:1 to shower-flow conditions. See also Wu et al., npj Clean Water 2021 (10.1038/s41545-021-00128-z) on activated-carbon EBCT requirements (25-40 s contact time required for chlorine reduction; shower contact <1 s).

    industry
Lab tests at Korean facilities (KEWI, KTR, P&K) are not KOLAS / ISO 17025 accredited. Full certification numbers and test report IDs are available on request.
4.9
Rated 4.9 out of 5 stars
Based on 658 reviews
Total 5 star reviews: 605 Total 4 star reviews: 44 Total 3 star reviews: 8 Total 2 star reviews: 0 Total 1 star reviews: 1
99%would recommend this product
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658 reviews
  • C
    christine
    Verified Buyer
    I recommend this product
    What did you experience? Skin Improvement, Hair Improvement, Great Scent
    Rated 5 out of 5 stars
    22 seconds ago
    Happy customer

    Really pleased with this shower head. We live in a hard water area and this has been a great purchase. Water pressure is really good, skin feels less dry and hair is softer too.

    Overall ExperienceRated 5.0 on a scale of 1 to 5
    Effects on Skin & HairRated 5.0 on a scale of 1 to 5
    Water Pressure IncreaseRated 5.0 on a scale of 1 to 5
    Ease of InstallationRated 5.0 on a scale of 1 to 5
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  • N
    Nathalie
    Verified Buyer
    I recommend this product
    What did you experience? Hair Improvement
    Rated 5 out of 5 stars
    2 days ago
    Love it!

    Amazing product. Easy to use. Very effective. Noticed improvement after a few uses.

    Overall ExperienceRated 4.0 on a scale of 1 to 5
    Effects on Skin & HairRated 5.0 on a scale of 1 to 5
    Water Pressure IncreaseRated 4.0 on a scale of 1 to 5
    Ease of InstallationRated 5.0 on a scale of 1 to 5
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  • S
    Susan
    Verified Buyer
    I do not recommend this product
    What did you experience? Great Scent
    Rated 1 out of 5 stars
    5 days ago
    Not sure

    So far I have used the shower head about 4 times and am not sure if it has made any difference to my hair. But will keep going with it because it’s pleasant to use.

    Overall ExperienceRated 2.0 on a scale of 1 to 5
    Effects on Skin & HairRated 2.0 on a scale of 1 to 5
    Water Pressure IncreaseRated 2.0 on a scale of 1 to 5
    Ease of InstallationRated 5.0 on a scale of 1 to 5
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    PN Profile picture for PICKI NIKI
    PICKI NIKI
    4 days ago

    Hi Susan,
    thanks for giving it a go and for the honest feedback.

    Four showers in is genuinely early: our filter works on the chlorine in your water every time you shower, so the difference in how hair and skin feel builds over a few weeks of regular use rather than in the first few days.

    Glad you're finding it pleasant in the meantime, and we hope it wins you over as you keep going.

  • SI
    Sevasti I.
    Verified Buyer
    I recommend this product
    What did you experience? Hair Improvement, Great Scent, Spa-like Experience
    Rated 5 out of 5 stars
    5 days ago
    Visible difference!

    Very easy to install, fits perfectly without any leaking. My hair is softer and my shower screen shows the difference too.

    So good I’ve packed it in my carry on bag!

    Overall ExperienceRated 5.0 on a scale of 1 to 5
    Effects on Skin & HairRated 5.0 on a scale of 1 to 5
    Water Pressure IncreaseRated 5.0 on a scale of 1 to 5
    Ease of InstallationRated 5.0 on a scale of 1 to 5
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  • I
    Irina
    Verified Buyer
    What did you experience? Great Scent
    Rated 3 out of 5 stars
    1 week ago
    Unfortunately, it does not help against itching and dry skin.

    When I moved to Berlin, my scalp problems began here: The skin itches, hurts and the hair falls out. Many white chalk stains remain on the shower set. We simply can't find a shower filter that really softens the water and removes limescale. So far, we haven't found one, even Picki Nicki does not provide soft water. The itching and other complaints have not diminished after two weeks. On the positive side, the shower head is pretty, the water pressure is good and the smell is pleasant.

    Translated from German
    Overall ExperienceRated 3.0 on a scale of 1 to 5
    Effects on Skin & HairRated 1.0 on a scale of 1 to 5
    Water Pressure IncreaseRated 4.0 on a scale of 1 to 5
    Ease of InstallationRated 4.0 on a scale of 1 to 5
    Was this helpful?
    PN Profile picture for PICKI NIKI
    PICKI NIKI
    4 days ago

    Hallo Irina,
    danke für dein ehrliches Feedback – und schön, dass dir Duschkopf, Wasserdruck und Duft gefallen.

    Zur Einordnung: Unser Vitamin-C-Filter reduziert das Chlor im Duschwasser.

    Vitamin C bildet mit Calcium und Magnesium zwar milde, lösliche Komplexe, das ist aber ein schwacher Nebeneffekt und keine Enthärtung – der Kalk bleibt im Wasser, daher die Kalkflecken. Für wirklich weiches Wasser bräuchte es eine Enthärtungsanlage fürs ganze Haus.

    Melde dich gern bei uns, wenn wir dir bei der Anwendung helfen können.

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