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Best for Water Hardness 2026GHI Lab Test
Best for Water Hardness & Best Flow Rate 2026
Lab-tested by the Good Housekeeping Institute against 12 shower filters – 2nd of 12 overall (scored 83/100), with top marks for water hardness and flow rate.
"Panellists told us their hair felt softer and healthier."
– Good Housekeeping Institute
"Almost everyone said they'd keep using it after testing."
– GHI Panel Test, 2026
During testing, the GHI consumer panel rated the shower head highly for easy installation and its modern, premium design. Panellists reported their hair felt softer after the test period, and most said they would keep using it.
Based on the Good Housekeeping Institute's lab and consumer-panel testing, 2026.
Best Overall 2025Editor's Review
Best Overall Shower Filter 2025
Selected by The Independent's shopping team after testing multiple shower-filter brands.
"These in-shower hard-water filters could make a difference to your hair health."
– The Independent
"After washing my hair just once, it felt smoother, silkier and shinier."
– Louise Whitbread
During testing, Louise Whitbread reported that her hair felt smoother, silkier and shinier after a single wash, and described a clear improvement in dryness and frizz over two weeks. She linked the results to the vitamin-C gel filter – which also contains glycerin – reducing the residual chlorine left on hair washed in hard water.
Based on the reviewer's individual experience during product testing.
Perspectives from trusted skin and hair professionals
Dr. Sibel Huet, M.D.
Internal Medicine Resident & Aesthetic Doctor, London
"I've been recommending PICKI NIKI to my friends and patients. My hair feels softer, my skin feels smoother, and I absolutely love it."
Bjorn Krischker
Celebrity Hairstylist, London
"Often when I shoot beauty and hair campaigns, I do the final rinse with bottled water. Since using PICKI NIKI, not anymore."
Amy Hunt, AIT
Associate of the Institute of Trichologists
"Consumers are increasingly investing in premium hair and skincare products yet often overlook the quality of the water used every day."
Stefan Scholz
Hairdresser, Berlin
"As a hairdresser, I look for long-term results rather than instant impressions. One of my long-term clients noticed softer-feeling hair and no visible green tint after using PICKI NIKI. I would happily recommend it."
These statements reflect the personal opinions of the experts.
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!
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.
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.
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.
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.
Amazing product. Easy to use. Very effective. Noticed improvement after a few uses.
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.
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.
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!
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.
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.