Shower water and your hair
Track how often you wash your hair and how it feels before and after adding shower filtration.
A simple baseline makes it easier to compare changes in your own routine.
Shower water is part of every wash. If your hair feels drier, frizzier or greasier while your products stay the same, it can be useful to compare the water too.
Could shower water affect how your hair feels?
Hair is exposed to local water every time you wash it. If your hair routine changed after moving or travelling, compare the water supply and track a practical measure such as wash frequency.
What is in the water you wash your hair with?
Your water utility may use free chlorine or chloramine. These disinfectants behave differently in warm shower water and require different filtration evidence.
Melbourne, Brisbane and Ipswich run free chlorine, which leaves solution readily: about 0.76 mg/L in Melbourne, roughly 2 mg/L in South East Queensland. Sydney adds ammonia to make chloramine, which stays dissolved all the way to the head.
South East Water Drinking Water Quality Report 2024-25; Urban Utilities Drinking Water Quality Report 2023-24; Sydney Water. Collated 21 August 2026.
The difference is how long the contact lasts. Nothing is shown happening to either, because nothing has been measured.
Why hair gives water longer contact
Hair is porous and remains wet after showering, extending contact with the water used to wash it.
This describes contact time and does not establish a cosmetic or medical outcome.
Why vitamin C rather than carbon
Check whether your utility uses free chlorine or chloramine, then review evidence for the exact filtration medium and product.
Ascorbic acid reacts chemically with chlorine compounds. See how Vitae Infusion works and review the evidence and limits on the chloramine and vitamin C page.
Compare other factors that can change your hair
Heat styling, product changes, hardness and location can all affect how hair feels. Change one factor at a time so you can compare.
Heat styling
Frequent high-heat styling is another factor worth testing before changing your shower setup.
How to tell whether that is your answer
If the change lines up with a new tool or a new routine rather than with a move or a season, start there. It is free to test and it takes a fortnight.
A product changed under you
Shampoo gets reformulated without the bottle changing.
How to tell whether that is your answer
If the timing lines up with a repurchase rather than with a move, that is a cheaper thing to test first. Buy the previous formulation if you can still find it.
Your story is limescale
Chalky film, crust on the tapware, hair that feels coated. That is hardness, not disinfectant.
And in Sydney, Melbourne and Canberra it is very unlikely to be what you have
Limescale and the disinfectant are two different problems, and ascorbic acid does nothing to the first one.
Standard shower filters do not soften water, so they should not be expected to remove a genuine hardness issue.
It is the same everywhere you go
If your hair behaves the same across different water supplies, another part of your routine may be more useful to investigate.
Why that one is close to conclusive
Water changes between those places. Something that does not change is a better lead, and it is worth chasing before you spend anything here.
If you have been reading that hard water is wrecking your hair, check first whether you have any. About 60% of Australians do not: Sydney, Melbourne and Canberra are all soft. Brisbane and Adelaide are moderately hard, and Perth is two markets in one. Your suburb is the number that matters, not your country.
Track your wash frequency before and after a change
Wash frequency gives you a simple measure to track. Record how often you wash your hair now, then compare it after changing one part of your routine.
Nothing is stored and nothing is sent anywhere. It is a note to self, not a prediction.
Keep the comparison personal and practical
Put that number somewhere you will find it again, with today's date next to it.
If you change anything about your shower, look at it again in two weeks and see whether the number moved.
What the result means
SUHAE does not promise a change in wash frequency. This simple comparison helps you judge the result using your own routine.
What people report
Australian reviews of shower filters, other brands included. Not Suhae reviews, and not a prediction: one person, one head of hair, one shower.
From someone who used to wash their hair every day, I can now go 3 to 4 days without washing.
One reviewer's own words, Australian shower filter reviews, August 2026.The water over the years has progressively got harder.
One reviewer's own words, Australian shower filter reviews, August 2026. Worth reading next to the hardness figures above, which is why we left it in.The phrases that keep coming back. Recurring words rather than single reviews, so nobody is named against them. They prove nothing, and several contradict each other.
- dry and wiry
- dried out my hair massively
- no frizz
- minimal hair fall
- frizzy, dull, tangled or coated
- colour fades faster
- greasy hair
- itchy scalp
- scalp is far less oily
Note that "dried out my hair massively" is in that list. It is somebody describing a filter making things worse for them, and we have left it where you can see it.
Where the review set came from
Recurring phrases across verified Australian reviews on ProductReview.com.au and Trustpilot, read 21 August 2026, across brands rather than only ours.
The most common pattern in that set is not a rave. It is a reversal, and it turns up almost word for word across different brands and different states: I was skeptical and held off for a long time, wish I had done it sooner.
What the evidence supports for hair
On colour
"Colour fades faster" turns up often enough to mention, and your colourist probably told you it was the sun.
SUHAE does not claim that shower filtration prevents colour fade. Sun exposure, washing, heat and product choice are also relevant factors.
Hair outcomes vary by person and routine
Customer reports are mixed and do not establish a measured hair outcome. Product claims remain limited to the published water, media and flow results.
Our guide to choosing one is the better next read.
Knowing when the cartridge is spent
No life figure is published for it, and one belonging to a different product is not going to be borrowed for it.
Nor is there an indicator. Nothing will tell you the day it stops doing anything.
Which is a problem you can solve for a few dollars
Free chlorine strips from a pool shop, read every few weeks against the same chart. That protocol lives here, written out step by step.
A reading that has drifted back is your answer, and unscrewing it takes about a minute. Your own head goes straight back on.
We hold no NSF/ANSI 177 certification
Suhae is not certified to that standard.
If a certification is what you are shopping on
Make every brand on your list name the standard it holds and produce the certificate for it.
The number is the part that matters. Without one, a standard on a page is a word.
Track one change, then compare your experience
Record your current wash frequency, keep the rest of your routine consistent and compare after adding filtration.
SUHAE Universal fits between your shower arm and existing shower head, with three cartridge options for different preferences.
SUHAE Universal is made in Korea and backed by an Australian company. The housing carries a lifetime warranty, while cartridges are replaceable consumables. Terms.