What’s In Shower Water? Discover What’s Really In Your Shower Water And How It Affects Your Skin & Hair
You jump in the shower to refresh — only to step out feeling dry. Your scalp's itchy, your skin feels tight, and your hair? Dull, frizzy, or just "off."
If you've ever thought "Is it the products I'm using?" — it might not be. It could be your water.
Quick answer: Australian tap water is safe to drink — but "safe to drink" isn't the same as "good for your skin and hair." Chlorine, hard water minerals (calcium and magnesium), heavy metals, and sediment can all affect your skin's moisture barrier and hair health every single day.
What's In Australian Shower Water?
Australian tap water is treated for drinking safety — but the same chemicals affect your skin and hair in the shower.
Australia's water is legally safe to drink — and that matters. But safe to drink doesn't mean ideal for your skin and hair. Here's what may be flowing through your showerhead every morning.
Chlorine
Added by water authorities as a disinfectant to reduce bacteria. The downside: it doesn't stop working when it hits your skin. In the shower, chlorine strips your natural oils — the layer that keeps skin soft and protected — and disrupts the moisture barrier with every wash.
Hard Water Minerals (Calcium & Magnesium)
These dissolved minerals make it harder for soap and shampoo to lather and rinse cleanly. The result is buildup on your scalp, residue on skin, and products that underperform no matter how good they are. Water hardness above 200 mg/L is considered elevated under Australian Drinking Water Guidelines — and many cities sit close to or above this.
Heavy Metals & Sediment
From ageing pipes and infrastructure. Even in newer homes, trace metals or debris can make water feel harsh — particularly for sensitive skin.
Other Trace By-Products
Australian water meets safety standards, but trace levels of disinfection by-products and particles can remain after treatment. They're not considered unsafe to drink — but they can influence how water feels on skin and hair.
Want the full deep-dive? What's really in your city's shower water — Aussie edition →
How Water Hardness Varies Across Australian Cities
Water hardness varies significantly across Australia — Perth and Adelaide are among the hardest, Melbourne among the softest. Full hardness map →
Water hardness varies widely depending on local geology and water sources. Perth sits at the hard end (180–250 mg/L), Adelaide moderately hard (100–200 mg/L), Brisbane and Sydney in the moderate range, and Melbourne generally softer (10–50 mg/L) thanks to protected mountain catchments.
Your city guide: Perth — Adelaide — Brisbane — Sydney — Melbourne
Why Your Skincare & Haircare Might Be Failing You
We invest in skincare. We choose salon-quality shampoo. But water — the base of your entire routine — is often overlooked.
The same water your products work in could be undoing them.
Here's what harsh shower water does:
- Strips the skin's natural oils — the barrier that keeps moisture in
- Makes dry or sensitive skin feel worse after every shower
- Leaves hair brittle, flat, or frizzy despite conditioning
- Prevents products from absorbing or rinsing properly
Think about it this way: would you bathe in a chlorinated pool every day? That's roughly what your skin is dealing with — just at lower concentrations.
More on how this plays out: Why your skin feels tight after a shower — Why your hair always feels dry after a shower
Testing Your Water at Home
At-home test kits can give you a quick read on calcium, magnesium, and chlorine levels in your tap water.
You don't need a lab to get a rough sense of your water quality. A few simple approaches:
The soap test: Hard water makes it harder to get a lather. If your soap barely suds and leaves residue, you likely have hard water.
At-home test kits: Widely available, these detect calcium, magnesium, and chlorine by changing colour — a quick, visual indicator of what's in your water.
Digital testers: Measure pH, total dissolved solids (TDS), and temperature. Good for spotting elevated mineral content at a glance.
What's the Fix?
You shouldn't have to move house, rip out pipes, or install a $3,000 whole-home system to improve your shower water. A quality filtered showerhead addresses the problem at the source — before water hits your skin.
Flowy's three-stage filter is designed for Australian water — targeting chlorine, heavy metals, and sediment.
Flowy's multi-stage filter reduces chlorine, captures metals and sediment, and softens the feel of mineral-heavy water. It fits standard Australian shower arms and installs in under 2 minutes — no tools needed.
Not sure if you need one, or comparing options? Do I need a shower filter? — Best shower filter in Australia (2026) — Complete filtered shower head guide
Your skin and hair are telling you something. The fix might not be another product — it might be the water.
Don't Just Change Your Products — Change Your Water
Better skin. Softer hair. Every single shower.
60-day risk-free trial. Free shipping Australia-wide. Installs in 2 minutes.
Shop Flowy Filtered Showerhead →
Or take the 60-second Skin & Hair Quiz → for a personalised recommendation.