When Niki moved to Germany, she started losing hair – more than ever before. She wanted a shower routine that worked with the local water. Berlin water has more dissolved minerals and chlorine than Seoul. She developed the PICKI NIKI filter shower head with Korean lab partners as part of her own filtered-shower routine. Today, many customers report softer-feeling hair, less mineral build-up, and a calmer-feeling scalp. Individual experiences vary.
"Excellent"
OkendoScore 4.9 | +800 reviews
“I replaced my shower head as part of my routine update.”
- Reduces chlorine and hard-water minerals that leave residue on the hair shaft
- Independently lab-tested dual-filter system + dermatologically tested non-irritant (P&K Skin Clinical Research Centre, n=30)
- Try risk-free with our 60-day money-back guarantee
Hard water can leave mineral residue on the scalp and hair, and chlorine can strip natural oils. PICKI NIKI reduces both at the source: your shower water.
AS SEEN IN
Niki Lee, Founder
What Customers Notice After Switching To Filtered Shower Water
Photos shared by our community. Individual experiences vary.
Softer-feeling, easier-styling hair
Many users report softer-feeling hair after switching to filtered shower water. Individual experiences vary.
Smoother, easier-styling hair
Many customers report softer-feeling hair and easier styling after switching. Individual experiences vary.
Hair thinning has many factors
- and the water you shower in is one factor worth looking at. Genetic and medical hair thinning should always be assessed by a dermatologist.
By reducing chlorine, rust, and hard-water minerals, PICKI NIKI lowers the residue that reaches your scalp and hair shaft. See how it works.
Many of our customers came to Picki Niki because hard water and chlorine were affecting how their hair felt.
Real customers. Real water. Real change.
They tested it on their own water.
Two Daily Water Factors That Can Stress Hair
CAUSE 1: Hard Water Minerals
Calcium and magnesium can leave residue on your hair and scalp with every shower. This build-up can make hair feel rougher and more prone to breakage, and can leave the scalp feeling less comfortable. Reducing it addresses one daily variable you can control.
CAUSE 2: Chlorine & Chemicals
Chlorine can leave the scalp feeling drier and hair feeling rougher over time. Coloured or treated hair can feel more sensitive. For hair thinning or shedding itself, a dermatologist is the right contact.
The damage is invisible – until it’s not
Mineral residue builds up gradually with every shower in unfiltered water, and you may not notice it day to day. Over time it can leave hair feeling rougher and the scalp less comfortable.
Switching to filtered shower water reduces that daily build-up. For hair thinning or shedding itself, a dermatologist is the right contact.
Why PICKI NIKI is the Clear Choice
See the difference compared to a standard shower head
Without Filter
Standard Shower Head
- ❌ Hard-water minerals untouched – skin can stay dry and irritated
- ❌ Does not reduce chlorine, rust or sediment
- ❌ No skincare or hair benefits
- ❌ No aroma – plain sometimes smelly tap water
- ❌ Single-use plastic, no recyclable parts
- ❌ Weak, unfiltered stream
With PICKI NIKI
PICKI NIKI Filtered Shower Head
- ✅ Vitamin C may reduce the mineral-residue feel – gentle on skin & hair
- ✅ Reduces chlorine to non-detectable levels, plus rust & impurities
- ✅ Softer-feeling skin and easier-styling hair after switching
- ✅ Aromatherapy included – relaxing & refreshing
- ✅ Modular design, replaceable filters, less waste
- ✅ 200 micro-holes for powerful, filtered water pressure
How PICKI NIKI Addresses Two Daily Hair-Stress Factors
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1
Reduces chlorine and mineral residue:
The dual-filter system reduces free chlorine and may reduce the mineral residue that can sit on the scalp and hair.
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2
Less mineral residue on the scalp:
Without chlorine and hard-water minerals on the scalp surface, residue can rinse off more easily. Many users describe their scalp as feeling calmer.
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3
Nourishes with Vitamin C:
The vitamin C gel filter neutralises free chlorine through a direct redox reaction – for a gentler, more comfortable shower from the first wash.
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)⁶. 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.
A Calmer-Feeling Scalp
Itchy or flaky-feeling scalp? Hard water and chlorine can affect how the scalp feels day to day.
Filtered water reduces free chlorine and the mineral residue reaching the scalp. This is not a treatment for any scalp condition; for a persistent itchy or flaky scalp, see a dermatologist.
Your skin can feel better too: many people notice less dryness and a more comfortable feel after showering.
Safe for the Whole Family – Including Little Ones
We filter our drinking water. Why not our shower water?
Children and babies have more sensitive skin. The PICKI NIKI filter uses only skin-friendly ingredients and is dermatologically tested non-irritant (P&K Skin Clinical Research Centre, n=30), plus atopy-friendly certified by the World Atopy Association⁵ (renewed 2025-2027).
One shower head serves everyone in your household. Learn what's in your shower water.
More benefits when you switch to filtered shower water:
Spa-Like Shower Experience
The vitamin C filter adds a subtle, refreshing scent – turning every shower into a moment of self-care.
Installs in 2 Minutes
No plumber, no tools. Simply screw it on and enjoy filtered water immediately.
Take It Wherever You Go
Comes with a travel pouch so your hair stays protected – even on holiday.
Dual-Filter Protection
Sediment filter + vitamin C gel filter work together to neutralise chlorine, capture particles, and help reduce hard-water mineral residue.
Vitamin C Infusion
A vitamin C gel filter that neutralises free chlorine through a direct redox reaction with every shower.
Powerful Yet Gentle Pressure
200 precision micro-holes create a silky-soft stream that rinses thoroughly without harsh pressure.
Just 27p a day - less than your morning coffee
Your £200 hair routine works on hair. PICKI NIKI works on the water - reducing free chlorine and the mineral-residue feel before contact.
The PICKI NIKI starter set includes everything you need. Replacement filters cost just £15/month – less than a single salon treatment. And if it doesn’t work for you? Full refund within 60 days. No questions asked.
Address Two Daily Hair-Stress Factors
Join the Picki Niki community. Independent Korean lab tests (KEWI, KTR, P&K) plus atopy-friendly certification. 60-day return policy.
Frequently Asked Questions
EVIDENCE & SOURCES
References
Studies on hair follicle biology, hard water effects, and product safety testing.
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Jun M, Kwack M, Kim M. Particulate Matters Induce Apoptosis in Human Hair Follicular... peer reviewed
Jun M, Kwack M, Kim M. Particulate Matters Induce Apoptosis in Human Hair Follicular Keratinocytes. Annals of Dermatology. 2020.
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Samra T, Lin RR, Maderal A. The Effects of Environmental Pollutants and Exposures on... peer reviewed
Samra T, Lin RR, Maderal A. The Effects of Environmental Pollutants and Exposures on Hair Follicle Pathophysiology. Skin Appendage Disorders. 2024.
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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. Int J Trichology. 2018.
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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 47.2y). Skin Irritation Index 0.03 (range 0.00-0.25 = non-irritant). Zero adverse events. Sample size and design are appropriate for a tolerability/irritation screen, not a clinical efficacy trial.
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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.
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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.
Full certification numbers and test report IDs are available on request.