Picki Niki FAQs – Duschfilter, Bestellungen & Support

PICKI NIKI uses a two-stage system targeting the three things that actually reach your skin and hair from a UK or DE shower:

• Chlorine. Vitamin C reacts with residual chlorine on contact. Independent KEWI lab testing measured chlorine at 0.19 mg/L on the inlet and below the detection limit (ND) on the outlet.
• Hard water minerals (Ca / Mg). Vitamin C reacts with dissolved calcium and magnesium so the minerals stay in solution and rinse off skin and hair instead of binding. This is established ascorbic-acid chemistry, not a separate PICKI lab claim.
• Sediment, rust, particles. A melt-blown PP pre-filter in a sealed full-flow housing catches the visible debris that comes through old building plumbing. By construction, 100% of the shower stream passes through the cartridge - no bypass possible.

What it is NOT: a drinking-water filter, a heavy-metals filter, or a bacteriological filter. It is designed for skin and hair contact under shower conditions.

The melt-blown PP sediment cartridge sits in a sealed housing inside the handle. By construction, 100% of the shower stream is forced through the cartridge before reaching the showerhead - water cannot shortcut around the filter, regardless of pressure, flow rate, or temperature.

Many multi-layer shower filters use a loose-pad or bead-chamber design where part of the flow can bypass individual filter layers. PICKI NIKI's two-stage architecture separates the sediment stage (sealed full-flow handle cartridge) from the Vitamin C chemistry stage (gel cartridge in the head), so each stage processes the entire stream.

Yes. The Vitamin C filter has been dermatologically tested by P&K Skin Clinical Research Centre in a 24-hour patch test on 30 subjects, classified as a non-irritant. The full formulation also holds an EWG Green-Grade rating and a non-irritant rating from the Welcome Atopy Association (WAA).

If you are fragrance-sensitive, choose the Unscented Vitamin Filter.

Yes. The filter contains no harsh chemicals, fragrance is optional, and the formulation is gentle enough for sensitive infant skin and conditions like cradle cap. Many parents specifically use PICKI NIKI to reduce chlorine and limescale exposure in their children's daily showers.

Yes. The Vitamin C formulation is dermatologically tested non-irritant (P&K, n=30) and holds an EWG Green-Grade rating. There are no fragrance, sulfate or paraben concerns with the Unscented Vitamin Filter, which is what we recommend during pregnancy.

If you have a specific medical condition, please check with your doctor or midwife.

Yes. PICKI NIKI uses the international G1/2" standard thread that fits all common shower hoses in the UK, DE and EU. Installation takes around 2 minutes: unscrew the old shower head, screw in PICKI NIKI, done. No tools required.

No. The shower head uses 200 stainless-steel micro-nozzles to maintain or boost felt pressure even at low flow rates.

• Tested at 6 L/min: compatible with German Durchlauferhitzer (instant-water-heater) systems where flow is throttled by design.
• Tested at 8 L/min low-pressure: daily-usable on lower-pressure systems including older flats and gravity-fed UK installations.

Most customers report stronger pressure than their previous shower head.

• Vitamin C gel filter: 2 to 4 weeks for one person, depending on shower frequency and water hardness.
• Sediment pre-filter: 1 to 3 months, depending on local water quality (older buildings or harder water = more frequent changes).

Pro tip: Store the shower head upright after use so water can drain out. This extends filter life noticeably.

• P&K Skin Clinical Research Centre dermatological testing (n=30, non-irritant)
• KEWI independent chlorine reduction test (0.19 mg/L to non-detectable)
• KEWI 60-parameter water-quality test
• KTR pH stability test
• Welcome Atopy Association (WAA) atopy non-irritant rating
• ISO 9001 / ISO 14001 quality and environmental management at the manufacturing partner

• Engineered in Germany. The formulation is specifically adapted for European hard-water and chlorinated tap-water conditions across DE, UK and the EU, where water hardness and disinfection-by-product profiles differ significantly from many other markets.
• Manufactured in South Korea by an ISO 9001-certified partner using K-Beauty industry standards (the same manufacturing ecosystem behind much of the global cosmetic-grade filter category).

Starter Kits: 60-Day Money-Back Period.
Your satisfaction matters. If you are not happy with your PICKI NIKI shower head, we offer a 60-day money-back period exclusively for starter kits. This applies even to starter kits that have been opened and used.

How to request a return or exchange:
Contact us at support@pickiniki.com within 60 days of your order date.

Refund details: The cost of the original transportation and return shipping to our warehouse is non-refundable.

Other Products: 14-Day Right of Withdrawal.
For all other products, you have 14 days to exercise your right of withdrawal and cancel the purchase contract. To qualify:

• The item must be in its original condition: unused and in its original packaging
• You must provide proof of purchase or a receipt