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 filters clean water. We make it skin-compatible.

Name: See. Feel. Trust.
Uploaded: 2026-05-01T12:31:51+00:00
Description: See. Feel. Trust.

Engineered for hot water, hard water and chlorine - the actual conditions of a shower.

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.

99%

Lab-Tested

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

1 of 1

Built for Real Showers

Engineered for hot water, high flow and minimal contact times - the actual conditions of a real shower. Other filters use cold-water tech that fails the moment things heat up.

Neutral pH

Skin-Balanced

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.

1,000+

5-Star Reviews

1,000+ verified five-star reviews on Okendo and Trustpilot. 4.8 average across the UK, Germany and the EU - real customers, real bathrooms.

START WITH WATER

Built for showers. Not repurposed drinking-water tech.

Every shower left my skin tight and my hair brittle. I tried every cream, every mask, every routine. Then I tested the water.

The problem wasn't my skincare. It was what came out of the tap.

So I looked at filters. Every other filter is drinking-water tech repackaged: cold water, slow flow, long contact.⁷
None of that survives a hot shower.

PICKI NIKI 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

Key Benefits

The latest K-Beauty technology for your shower - read here why you need a shower filter.

Easy installation

Fits in any shower & no adapter is needed

Easy maintenance

Quick and easy cleaning and filter change

Purifies water

Saves up to 50% water with 200 micro-nozzles for boosted felt pressure

Spa at home

Nourishes skin and hair with vitamin C water

See. Feel. Trust.

Watch real customers share their experience

Why switch?

Improve your skin and hair care

Healthy Skin

Your skin will glow as a result of the reduction of hard water, chlorine and other hard metals.

Skin Improvement

Lab-tested for skin compatibility.

Shiny hair

Repairs, protects and cleanses your hair intensively.

Desensitization

Reduces skin irritation and redness.

Maximum moisture

Vitamin Gel enriches water with vitamin C, collagen and glycerin.

Skin-compatible water

Vitamin C neutralises chlorine, softens hard water and creates slightly acidic pH - lab-tested for tolerability (P&K, KTR).

In Four Steps to Pure Water

STEP 1: Sediment Filtration

The sediment filter in the handle traps rust, dirt, and large particles from the water. This ensures a clean start to your shower.

STEP 2: Water Softening

The vitamin C gel filter reacts with and dissolves calcium/magnesium minerals so they rinse off instead of building up on your skin and hair. No more dryness & irritation, or dull hair.

STEP 3: Chlorine Neutralization

The vitamin C filter reduces chlorine to non-detectable levels (KEWI lab test). This reduces dryness and irritation caused by residual chlorine from water treatment.

STEP 4: Enhanced Water Stream

200 precision micro-holes create a silky soft yet powerful water flow. This ensures a thorough and gentle cleanse without harsh pressure.

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

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

Clinically Tested. Backed by Three Korean Labs.

Clinically tested at P&K Skin Clinical Research Centre (n=30, dermatologically non-irritant). Tested at KEWI for chlorine reduction and 60-parameter water quality, and at KTR for pH stability across full shower flow rates. Atopy-friendly certified by the World Atopy Association (renewed 2025-2027). Manufactured by our manufacturing partner in Korea under ISO 9001 / 14001 / 37001 / 37301 / 45001 management-system standards.

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

Substantiation for claims on this page. Lab reports, peer-reviewed papers, and product certifications.

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.

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

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.