What can I expect from your product?

Our PICKI NIKI shower head neutralizes the harmful effects of hard, chlorinated water, which often causes dry skin, itching and irritation. The vitamin C filter makes your water softer and gentler on your skin, so you can look forward to hydrated, soothed and radiant skin. Enjoy a spa-like experience with every shower that nourishes and protects your skin!

How much does it cost in terms of time, effort and money?

The PICKI NIKI filter shower head costs 99 euros/dollars and is super easy to install – no need for a plumber! Simply attach it to your existing shower and enjoy softer water immediately. Replacement filters are affordable: a set of three sediment filters for 20 euros will last over 6 months, and the vitamin C filter for 15 euros will last 2-4 weeks depending on usage and water hardness. An inexpensive solution to protect and care for your skin every day!

Is it safe? Can I use the product on sensitive skin?

Yes. Our shower head is clinically tested for skin compatibility (P&K Skin Clinical Research Centre, n=30, dermatologically tested non-irritant) and uses only ingredients from the EWG's Green Grade category, which are considered particularly gentle and skin-friendly. It is suitable for people with sensitive skin associated with hard water. The filters remove sediment, neutralize chlorine and make your water much gentler - ideal for sensitive skin!

Why do hard water and chlorine cause skin and hair problems?

Hard water contains minerals such as calcium and magnesium, which can build up on the skin and attack its natural moisture barrier. This leads to dryness, tightness and irritation. Chlorine in the water can also dry out the skin and further irritate sensitive skin.

How does your shower head help with skin and hair problems? How quickly can I see results?

Our shower head removes minerals and chlorine from the water, creating softer, skin-friendlier water. Many users report noticeably softer and more hydrated skin after just a few weeks. The effect can vary depending on skin type and water quality, but most people quickly experience an improvement in their skin texture.

BUILT FOR REAL SHOWERS

Most shower filters were never designed for showers.

Name: Real customers. Real water. Real change.
Uploaded: 2026-05-29T17:01:48+00:00
Description: Real customers. Real water. Real change.

We were. Engineered for real shower conditions - hot & hard water, fast flow, chlorine - and independently tested for skin compatibility.

Experience Better Water

Ca + Mg + Cl

WHAT'S IN YOUR WATER

Your water carries hardness (calcium + magnesium) plus chlorine, often alkaline. That combination is what dries and tightens skin. PICKI NIKI is built for this reality.

0 mg/L

CHLORINE AT OUTLET

Verified non-detectable chlorine in independent KEWI lab test (S212, 2020).² The redox reaction with ascorbic acid runs faster at warm shower temperatures - the opposite of carbon-based filters.

pH reduction

LAB-TESTED CHEMISTRY

Independent KTR pH-stability lab test confirms filtered water exits at neutral pH across full shower flow rates,⁸ preserving the skin's natural acid mantle.

Skin-safe

DERMATILOGICALLY TESTED

Independent dermatological compatibility test at P&K Skin Clinical Research Centre (Korea) - filtered water classed non-irritant.¹

START WITH WATER

"It wasn't my skincare. It was the water."

When I moved from Korea to Germany, hard water changed my skin and hair while skincare products did not make any difference.

So I looked at filters. Every other filter was drinking-water tech repackaged: cold water and slow flow preferred, long contact time needed.⁷

PICKI NIKI started there - not as a beauty tool, but as a way to fix what hard water was doing first.

It is engineered specifically for the actual conditions of a real shower: hot water, high flow, fast contact.

Better skin & hair start with better water.

Niki

More about us

Maybe it isn't your skincare. Maybe it's your shower water.

Four everyday changes after one simple swap.

Softer-feeling skin

Softer, less tight-feeling skin - one of the most common shifts after the switch, often noticed from the very first shower.

Easier-styling hair

After switching, easier-to-manage hair is a common report. Hard-water minerals can build up otherwise daily.

Calmer-feeling scalp

In hard-water areas, a calmer-feeling scalp is among the most common shifts. Most UK homes have hard or very hard water.

Lab-tested mechanism

Vitamin C reacts with chlorine and binds with hard-water minerals - they flow away with the water. Patch-tested non-irritant at P&K.

Real customers. Real water. Real change.

They tested it on their own water.

Reduces chlorine

Verified non-detectable in independent KEWI testing²

Reduces hard-water residue

For softer feeling skin and easier-to-manage hair

Captures particles

Dedicated sediment stage for rust and pipe residue

Strong, consistent flow

200 micro-hole spray plate, up to 35% less water

Four steps. One shower.

STEP 1: Sediment Filtration

A dedicated 5μm pre-filter catches rust, pipe debris, and grit from old plumbing - the first thing most shower filters skip.

STEP 2: Less Hard-Water Residue

Hard-water minerals leave that tight, residue-like feeling after showering. The Vitamin C stage helps reduce visible mineral build-up on skin and hair.

STEP 3: Chlorine Neutralisation

The Vitamin C reaction reduces free chlorine to non-detectable (KEWI lab, 2020). That means a shower that won't strip your skin's natural oils or roughen your hair.

STEP 4: Stronger Spray, Less Water

A 200-hole precision plate gives you stronger feel with up to 35% less water. Better pressure, smaller bill, gentler on skin and hair.

Clinically tested · Lab-verified · Atopy-certified · ISO-manufactured

Clinically tested · Lab-verified · Atopy-certified · ISO-manufactured

Dermatologically Tested. Backed by Three Korean Labs.

Dermatologically tested non-irritant: Skin Irritation Index 0.03 (P&K Skin Clinical Research Centre, n=30)¹. Free chlorine reduced to non-detectable² plus a 60-parameter drinking-water analysis at the same KEWI lab⁹. pH balanced under shower flow conditions (KTR)⁸. Made in Korea, ISO 9001 + 14001⁴.

Get 30% off when you bundle filters with your shower head

Shower Head

Choose a black or white shower head by adding it to your shopping cart.

Filters and accessories

Select any 8 products and add them to your shopping cart.

Automatic discount

Get an automatic 30% discount on filters and accessories

Try it for 60 days - risk free. Your skin and hair will feel the difference.

Over 1,000 five-star reviews - now it's your turn. Try PICKI NIKI for 60 days. Not satisfied? Money back - even if you've used it.

START MY 60-DAY TRIAL

Click here to find out all about these topics:

Healthy Water, Healthy Skin & Hair

Why your skin & haircare isn't working – when your water is the problem.

Every Filtered Shower Head Technology Explained (and Ranked by Science)

Hard water, chlorine & hidden chemicals damage your skin daily. Here’s how a filtered shower head solves it effortlessly.

Why You Need a Filtered Shower Head

Hard water, chlorine & hidden chemicals damage your skin daily. Here’s how a filtered shower head solves it effortlessly.

Skin Problems

Softer-feeling skin from the very first wash.

Hair Problems

Brought the shine back to my hair after switching.

Hair shedding from hard-water damage

How hard water affects your hair, and what filtering can do.

Frequently Ask Questions

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.

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
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
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
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
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
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
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
Korea Testing & Research Institute (KTR). pH Stability Test - Vitamin Filter and Shower... lab test

Korea Testing & Research Institute (KTR). pH Stability Test - Vitamin Filter and Shower Filter. Seoul, Korea.
Independent pH-stability lab test on filtered water across full shower flow-rate range. Confirms filter does not shift water pH outside skin-compatible neutral range, preserving the skin's natural acid mantle (typical pH 4.5-5.5).

lab test
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

Lab tests at Korean facilities (KEWI, KTR, P&K) are not KOLAS / ISO 17025 accredited. Independent UK UKAS-accredited testing is in progress, with results expected mid-2026. Full certification numbers and test report IDs are available on request.