Is Your NZ Shower Water Safe? The Truth About Chlorination

Every New Zealand public water supply that serves drinking water is chlorinated. That is not a scare tactic — it is simply how the system works. Under the Water Services Act 2021, water suppliers must treat water to make it safe to drink, and chlorination is the primary disinfection method used by the vast majority of treatment plants nationwide.

What this means in practice: every shower you take in Auckland, Wellington, Christchurch, Hamilton — or anywhere else on a public supply — involves chlorinated water.

Why chlorine is in the water

Chlorine and chloramines (compounds formed when chlorine reacts with naturally occurring organic matter) are effective at preventing waterborne illness. They are affordable, well-understood, and essential to public health. New Zealand drinking water is genuinely among the safest in the world.

But "safe to drink" and "ideal for daily skin and hair exposure" are not the same question.

What happens to your skin and hair in the shower

Your skin and hair are exposed to shower water for minutes at a time, every day. Dermatologists and cosmetic scientists have noted that regular exposure to chlorinated water can affect the surface of the skin and hair.

Chlorinated water can strip some of the skin's natural surface oils — the lipids in the outer layer of skin that help retain moisture. The result for some people is skin that feels tighter, drier, or less comfortable after showering. Hair may feel rougher or appear less shiny, particularly at the ends.

These are cosmetic observations. There is nothing medically dangerous happening in a typical residential shower. But for people who already have dry or sensitive skin, or who invest time in their hair routine, the quality of the water is a factor worth considering.

An important clarification

A shower filter is not a medical device. It will not treat eczema, psoriasis, or any other skin condition. The right conversation for those concerns is with a dermatologist.

What a filtered shower head does is simpler: it reduces the chlorine taste and odour that comes with tap water, and filters fine sediment that can accumulate in older pipes. Many people find that a filtered rinse leaves their skin feeling softer and their hair looking smoother over time — a daily improvement to the rinse, not a treatment.

What our filter does and does not do

The Ion Drop uses a PP-cotton cartridge inside the head itself. Here is the honest version:

• Reduces chlorine taste and odour from your shower water
• Filters fine sediment
• Will not soften hard water (minerals like calcium and magnesium require a different approach)
• Is not a drinking-water filter or a medical treatment

NZ water in context

New Zealand tap water is generally soft to medium hardness, meaning mineral hardness is not the main concern here the way it is in parts of Europe or the US. What is consistent is chlorination — it is mandated under legislation and it is permanent.

For most people on New Zealand public supply, the chlorine taste and odour is the most meaningful thing a shower filter can address. And for people who notice a drier skin feel or rougher hair texture after showering, it is one of the lowest-effort changes you can make to your daily routine.

Building the ritual

At Ablu, we think about shower and hair routines the way you would think about a skincare routine: small, consistent choices that compound over time. A filtered shower head is a reasonable foundation — a fresher, calmer start to every rinse.

Combine it with a microfibre hair towel (which absorbs without friction), a weekly deep conditioning treatment, or a scalp brush, and you are building a routine that actively works with your hair and skin rather than against it.

Filtered water will not transform your hair overnight. But it is a sensible, low-effort baseline for anyone who showers daily and wants to get a little more from the time they are already spending.