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.
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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.
TESTED AT THREE INDEPENDENT KOREAN LABS
Many users report softer-feeling hair after switching to filtered shower water. Individual experiences vary.
Many customers report softer-feeling hair and easier styling after switching. Individual experiences vary.
- it’s often triggered by what’s flowing from your shower. PICKI NIKI’s lab-tested shower head targets this hidden cause at the source.
By filtering out chlorine, rust, and hard minerals, it reduces residue on the scalp and hair shaft.
Many of our customers came to Picki Niki because hard water and chlorine were affecting how their hair felt.
Watch real customers share their experience
Calcium and magnesium build up on your hair and scalp. Every. Single. Shower. These deposits clog hair follicles, suffocate the roots, and make hair brittle and prone to breakage. Over time, the damage accumulates until your hair can’t grow back properly.
Chlorine strips your scalp of its natural protective oils, the very oils that keep hair hydrated and strong. Without them, your scalp dries out, follicles weaken, and hair becomes porous and fragile. Coloured or treated hair is especially vulnerable. The result: thinning, breakage, and accelerated shedding.
You won’t notice it at first. But every shower with unfiltered water adds another layer of mineral buildup. Follicles narrow. Hair thins. Growth slows.
By the time you see it in the mirror, weeks of damage have already accumulated. The earlier you switch, the more hair you keep.
See the difference compared to a standard shower head
The dual-filter system reduces chlorine and binds calcium and magnesium – the minerals that can leave residue on the scalp and hair.
Without chlorine and hard-water minerals on the scalp surface, residue can rinse off more easily. Many users describe their scalp as feeling calmer.
The vitamin C gel filter neutralises aggressive chemicals and delivers antioxidants directly to your scalp – promoting healthier, a more comfortable shower experience from the first wash.
The sediment filter in the handle traps rust, dirt, and large particles from the water. This ensures a clean start to your shower.
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.
The vitamin C filter reduces chlorine to non-detectable levels (KEWI lab test). Less chlorine on contact means less residue on skin and hair.
200 precision micro-holes create a silky soft yet powerful water flow. This ensures a thorough and gentle cleanse without harsh pressure.
Itchy scalp? Dandruff? Flaking? These are often early warning signs of the same chlorine and mineral damage that contributes to hair shedding.
Filtered water removes the irritants that clog pores, inflame follicles, and disrupt your scalp’s natural barrier. A healthier scalp means stronger roots, and stronger roots mean less hair shedding.
Your skin benefits too: less dryness, less irritation, more hydration after every shower.
We filter our drinking water. Why not our shower water?
Children and babies have more sensitive skin that’s especially vulnerable to chlorine and hard water minerals. The PICKI NIKI filter uses only skin-friendly, EWG Green Grade ingredients, dermatologically tested non-irritant (P&K Skin Clinical Research Centre, n=30).
One shower head protects everyone in your household. Nearly 1 in 5 of our customers choose PICKI NIKI specifically for filtered water for their family.
The vitamin C filter adds a subtle, refreshing scent – turning every shower into a moment of self-care.
No plumber, no tools. Simply screw it on and enjoy filtered water immediately.
Comes with a travel pouch so your hair stays protected – even on holiday.
Sediment filter + vitamin C gel filter work together to soften water, remove chlorine, and neutralise minerals.
250 lemons worth of vitamin C per filter – nourishing your scalp and neutralising chlorine on contact.
200 precision micro-holes create a silky-soft stream that rinses thoroughly without harsh pressure.
Your £200 hair routine is fighting a £0 water problem. Fix the cause for less than your morning coffee.
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.
Join the Picki Niki community. Independent Korean lab tests (KEWI, KTR, P&K) plus atopy-friendly certification. 60-day return policy.
Studies on hair follicle biology, hard water effects, and product safety testing.
Jun M, Kwack M, Kim M. Particulate Matters Induce Apoptosis in Human Hair Follicular Keratinocytes. Annals of Dermatology. 2020.
Samra T, Lin RR, Maderal A. The Effects of Environmental Pollutants and Exposures on Hair Follicle Pathophysiology. Skin Appendage Disorders. 2024.
Luqman MW, Ramzan M, Khan MA, et al.. Effects of hard water on hair. Int J Trichology. 2018.
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.
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.
World Atopy Association (WAA). Atopy-friendly Product Certificate. 2025.
Valid 2025-03-06 to 2027-03-05. Industry association certification.
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.
