What Does Shower Water Actually Do to Your Hair and Skin? The Science
There is a surprisingly robust body of scientific literature on what chlorinated and chloraminated water does to hair keratin and skin barrier function — and almost none of it makes it into the conversation happening in shampoo aisles, hair salons, or dermatology waiting rooms. The default assumption is that shower water is benign, and that dry hair, scalp irritation, and faded colour are problems solved by a better conditioner. The research says otherwise.
Chlorine bonds covalently to cysteine residues in hair keratin — the same protein bonds that give hair its structural strength. Chloramine, used in Sydney, Brisbane, Adelaide and most of regional Australia's water networks, adds an ammonia component that alters the chemistry further, penetrating the hair shaft more deeply than free chlorine alone. Hard water — the defining characteristic of Perth, Adelaide, and northern Brisbane — deposits calcium and magnesium between the overlapping scales of the hair cuticle, physically disrupting the moisture exchange mechanism that keeps hair flexible and smooth. Each of these mechanisms is documented in peer-reviewed literature. Together — in a 10-minute hot shower at 40°C with your pores dilated and your hair's cuticle swollen open — they compound into the most significant daily chemical stress your hair and skin experiences. This post goes through each mechanism, what the research shows, and what filtration actually addresses.
Shower water chemistry — specifically free chlorine, chloramine, and dissolved calcium and magnesium (hardness) — causes documented, measurable damage to hair keratin structure, scalp barrier function, and skin hydration through distinct biochemical and physical mechanisms. These mechanisms are cumulative across daily exposure. The damage is not cosmetic myth — it is documented in peer-reviewed dermatology and materials science literature. A KDF shower filter addresses the chlorine and chloramine component. A water softener addresses hardness at scale. For most Australian households where filtration is the practical option, KDF shower filtration eliminates the primary chemical oxidant and allows the hair and skin's natural repair mechanisms to operate without daily re-exposure — which is why the results of a quality KDF shower filter are observable within 30–60 days for most users.
📋 Table of Contents
- Why the shower is the most important water contact point
- What free chlorine does to hair — the keratin chemistry
- What chloramine does differently — and why it's worse for hair
- Hard water and hair — the calcium cuticle mechanism
- What shower water does to skin — barrier function and eczema
- Why hot showers compound everything
- The compounding effect — chloramine plus hard water
- How your city's water chemistry affects your hair and skin
- What filtration actually addresses — and what it doesn't
- Frequently Asked Questions
Why the Shower Is the Most Important Water Contact Point
Most people think of drinking water as their primary water quality concern. For hair and skin health, the shower is a far more significant exposure event — for three reasons that are easy to overlook.
A widely cited study by Brown, Bishop and Rowan (1984) in the American Journal of Public Health estimated that dermal absorption and inhalation together accounted for a larger proportion of total chloroform exposure than drinking water in households with chlorinated supplies. A later analysis by Backer et al. confirmed that volatile disinfection by-products (DBPs) — produced when chlorine and chloramine react with organic matter in water — are inhaled and dermally absorbed during showering at rates that make the shower the primary exposure route for these compounds in chlorinated households. This is not a fringe position — it is the baseline on which EPA exposure assessments for DBPs are calculated.
More directly relevant to hair: a 2024 study published in the Open Access Research Journal of Biology and Pharmacy examined chronic effects of swimming pool disinfectants (predominantly free chlorine and combined chlorine/chloramine at pool concentrations) on skin and hair structure. The findings confirmed measurable disruption to the hair cuticle, reduction in tensile strength, and increased porosity from chlorine exposure — consistent with earlier materials science literature on chlorine's reactivity with keratin. The pool context uses higher chlorine concentrations than tap water, but the mechanisms are identical — and daily shower exposure over years represents a comparable or greater cumulative dose than occasional pool use.
What Free Chlorine Does to Hair — The Keratin Chemistry
Hair is approximately 95% keratin — a fibrous structural protein built from amino acid chains cross-linked by disulfide bonds between cysteine residues. These disulfide bonds are the primary source of hair's tensile strength and elasticity. Free chlorine (hypochlorous acid, HOCl) is a powerful oxidant — that is exactly what makes it effective as a disinfectant. The same oxidative capacity that destroys microbial cell walls also reacts with the cysteine in keratin.
Free chlorine oxidises cysteine residues in the hair cortex — breaking disulfide (–S–S–) bonds and converting them to sulfenic, sulfinic, and ultimately cysteic acid residues. These oxidised residues cannot reform the original bond structure. The result is irreversible loss of tensile strength, increased brittleness, and reduced elasticity — the same mechanism as bleaching damage, at a much lower concentration over a much longer timeframe.
The hair cuticle — overlapping scales of flattened, dead keratin cells — is coated with an 18-methyl eicosanoic acid (18-MEA) fatty acid layer that acts as a water-repellent barrier and gives undamaged hair its smooth, reflective surface. Free chlorine oxidises and removes this lipid layer, increasing cuticle porosity, reducing natural water repellency, and producing the rough surface texture associated with damaged hair. Once the 18-MEA layer is stripped, the cuticle scales lift and the hair absorbs and loses moisture more rapidly.
Hair colour — both natural melanin and artificial colour molecules — is vulnerable to chlorine oxidation. Free chlorine progressively oxidises melanin granules in the hair cortex, bleaching natural pigment and stripping artificial colour molecules from the cortex. This is the documented mechanism behind both swimming pool hair colour change and the gradual colour fade experienced by chlorinated shower water users. Colour-treated hair in chloraminated water (Sydney, Brisbane, Adelaide) experiences accelerated colour loss compared to the same treatment in free-chlorine supply areas.
At sustained exposure, chlorine oxidation progresses beyond cysteine residues to other amino acids — including methionine, tryptophan, and tyrosine. This produces protein chain fragmentation within the hair cortex — contributing to split ends, breakage under low tension, and the reduced wet-stretch behaviour that characterises over-processed hair. The mechanism is identical to the early stages of chemical relaxer damage — but occurs at a slower rate and from daily shower exposure rather than a single chemical treatment.
What Chloramine Does Differently — And Why It's Worse for Hair
Chloramine (monochloramine, NH₂Cl) is used as the primary disinfectant in Sydney, Brisbane, Adelaide, and most of Australia's larger distribution networks precisely because it is more chemically stable than free chlorine — it persists longer through long distribution pipes without breaking down. That stability is also what makes it more problematic for hair and skin: chloramine does not dissipate naturally from water at room temperature, does not break down in an open jug overnight, and requires significantly more activated carbon contact time to remove than free chlorine. It simply stays in the water — and then stays on your hair and scalp for longer after the shower.
Chloramine's damage mechanisms overlap with free chlorine but add a specific additional pathway: the ammonia (NH₃) component of monochloramine has a lower molecular weight and greater lipid solubility than hypochlorous acid, enabling it to penetrate the hair shaft more deeply — past the cuticle and into the cortex — where it reacts with internal keratin structures and melanin granules at concentrations not achieved by free chlorine at typical tap water levels. This deeper penetration is why users on chloramine supplies (Sydney, Brisbane, Adelaide) frequently report more severe colour fading, more persistent dryness, and less response to conditioning treatments than users in free chlorine cities (Melbourne, Perth).
On the scalp, chloramine's combined oxidative and alkaline chemistry disrupts sebum production — the natural oil film that maintains scalp barrier integrity and hair shaft lubrication. Chronic sebum disruption produces the cycle well-known to trichologists: chloramine strips scalp oils → scalp responds with compensatory overproduction → oily roots and dry ends simultaneously → aggressive shampooing to manage oiliness → further stripping → cycle continues. For individuals already prone to seborrheic dermatitis, psoriasis, or scalp eczema, chloramine exposure maintains an inflammatory baseline that makes these conditions significantly harder to manage.
A 2025 Reddit-documented phenomenon — corroborated by trichologists in the UK and USA in published interviews — notes that individuals who move from Melbourne (free chlorine) to Sydney or Brisbane (chloramine) without changing their hair care routine consistently report a marked deterioration in hair texture and scalp condition within 4–8 weeks. The reverse transition — from chloramine to free chlorine areas — produces measurable improvement over a similar timeframe. This represents a natural human experiment confirming the differential effect of the two disinfectant types on hair biology.
⚠️ The chloramine hair care blind spot: Most haircare advice — and most hair product formulation — is developed in the United States, UK, and Europe, where free chlorine dominates municipal water supplies. Shampoos, conditioners, and treatments formulated to counteract "hard water" or "chlorine damage" are typically designed and tested for free chlorine, not chloramine. A product that successfully neutralises free chlorine in a Los Angeles shower does not necessarily perform the same function in a Sydney or Adelaide shower. Australian consumers using overseas-formulated haircare products for "chlorine-damaged" hair are frequently using products calibrated for a different water chemistry to the one coming out of their tap.
Hard Water and Hair — The Calcium Cuticle Mechanism
Hard water — water with high dissolved calcium and magnesium, measured in mg/L CaCO₃ — affects hair through a distinct physical mechanism that operates independently of disinfectant chemistry. In hard water, calcium and magnesium ions (Ca²⁺ and Mg²⁺) are attracted to the negatively charged surface of wet hair — particularly to the carboxylate groups (–COO⁻) of the amino acids on the cuticle's outer surface. These divalent cations bind to the cuticle surface and deposit between the overlapping cuticle scales — a process that accelerates at the elevated temperatures of a hot shower.
Srinivasan et al. (2013), International Journal of Trichology: A controlled study comparing the effect of hard water (540 mg/L) versus distilled water on hair tensile strength. The hard water group showed significantly increased hair breakage after 30 wash cycles. The study attributed this to calcium and magnesium ion deposition between cuticle scales — physically disrupting the cuticle's structural integrity and moisture retention function. Critically, the study used no disinfectant in either condition — isolating hardness as an independent variable from chlorine exposure. Hardness alone causes measurable hair damage.
Srinivasan et al. (2016), International Journal of Trichology: Follow-up study examining the effect of hair washing with hard water vs normal water on hair elasticity and surface morphology using electron microscopy. Hard water-washed hair showed visible cuticle roughening, scale lifting, and surface deposition under SEM — producing a surface texture associated with perceived frizz, difficulty combing, and reduced shine. Again, no disinfectant used — the effect is purely mineral deposition.
PureShowers UK analysis (2025): A consumer-facing summary of the peer-reviewed literature notes that calcium deposited on the hair cuticle also interferes with the effectiveness of conditioning products — the calcium layer prevents conditioning agents (typically positively charged quaternary ammonium compounds) from binding to the negatively charged hair surface. Hard water doesn't just damage hair — it actively reduces the effectiveness of the products intended to repair it.
Compounding with chloramine (Australia-specific): In Australian cities with both hard water and chloramine — Adelaide (hardness ~100–400 mg/L + chloramine) and outer Perth zones (hardness ~150–250 mg/L + free chlorine) — the two mechanisms operate simultaneously. Chloramine strips the 18-MEA lipid layer and oxidises the cuticle surface. Hard water simultaneously deposits calcium between the damaged cuticle scales. The cuticle is chemically degraded and physically disrupted at the same time — which is why the hair condition of Adelaide residents is disproportionately poor relative to the individual severity of either factor alone.
What Shower Water Does to Skin — Barrier Function and Eczema
Skin's primary barrier function is maintained by the stratum corneum — the outermost layer of the epidermis — which consists of dead, flattened keratinocytes embedded in a lipid matrix of ceramides, cholesterol, and fatty acids. This barrier controls transepidermal water loss (TEWL), prevents allergen penetration, and maintains skin hydration. Shower water chemistry directly disrupts this barrier through two mechanisms: oxidative damage from chlorine and chloramine, and emulsification and removal of the lipid matrix from prolonged hot water contact.
Free chlorine and chloramine oxidise ceramide molecules in the stratum corneum lipid matrix — the same oxidative chemistry that degrades hair keratin. Oxidised ceramides are less effective as barrier lipids, increasing transepidermal water loss (TEWL) and reducing the skin's resistance to irritant and allergen penetration. Studies have linked regular swimming pool exposure (higher chlorine, same mechanism) to increased skin permeability and allergy sensitisation — particularly in children with a genetic predisposition to eczema.
The skin surface carries a microbiome of commensal bacteria that contribute to barrier function, compete against pathogenic organisms, and modulate local immune responses. Chlorine and chloramine are broad-spectrum antimicrobials — that is their function. Daily shower exposure progressively depletes the skin's commensal bacteria, creating a less stable microbiome that is more vulnerable to colonisation by pathogenic organisms (Staphylococcus aureus in eczema patients, Malassezia in seborrheic dermatitis). This disruption has been documented in studies of shower water disinfectant exposure in atopic dermatitis patients.
Hard water calcium deposits on skin surface — a phenomenon confirmed in animal and human studies — increase skin surface pH (normally ~4.7, moving toward ~7.0 with hard water exposure). Higher skin surface pH activates serine proteases that degrade filaggrin — a key structural protein in the stratum corneum. Filaggrin degradation is associated with eczema susceptibility. Studies in regions of the UK with hard water have shown statistically significant correlations between water hardness and eczema prevalence in infants — an association not seen in soft water areas.
Chloramine's alkaline chemistry and oxidative activity strips the natural sebum film from skin surface — the same mechanism as on the scalp. Skin responds to sebum depletion with compensatory overproduction, producing the paradoxical combination of tight, dry skin immediately post-shower that transitions to oily skin later in the day. This cycle is particularly pronounced in Adelaide (high chloramine + high TDS) and northern Perth (hard water + free chlorine) and is the common complaint pattern that skin and hair care brands have built entire product ranges around — without addressing the shower water root cause.
Why Hot Showers Compound Everything
Temperature is not a neutral variable in shower water chemistry. The typical hot shower temperature of 38–42°C accelerates every damaging mechanism described above — through four specific effects.
Hair cuticle swelling: Heat causes the hair shaft to swell, opening the cuticle scales — the same mechanism that makes hot water the preferred medium for hair dye application. Open cuticle scales maximise the surface area exposed to dissolved chlorine, chloramine, and mineral ions. A cold shower delivers the same water chemistry to a closed, defended cuticle. A hot shower delivers it to an open, receptive one.
Skin pore dilation: Elevated temperature causes dermal capillary dilation and increases skin surface temperature, enhancing the absorption of dissolved compounds across the stratum corneum. Dermal absorption rates for chloroform and other volatile disinfection by-products approximately double between 25°C and 40°C water temperature — the typical range of a cool versus hot shower.
Chloramine volatilisation: Unlike free chlorine, chloramine is less volatile at shower temperatures — which means more of it remains dissolved in the water in contact with hair and skin, rather than escaping into the shower steam. This is both a direct contact advantage (less inhalation of chloramine vapour than chlorine vapour) and a hair contact disadvantage — the chloramine stays in the water, in contact with the open cuticle, for the full shower duration.
Accelerated reaction kinetics: Chemical reaction rates approximately double for every 10°C increase in temperature (the Arrhenius principle). The oxidative reaction between chloramine and hair keratin cysteine residues proceeds roughly twice as fast at 40°C as at 20°C — meaning a hot shower delivers not just more chemical contact but faster chemical damage per unit of contact time than a cool shower with identical water chemistry.
The Compounding Effect — Chloramine Plus Hard Water
For Australian households with both chloramine and hard water — primarily Adelaide (chloramine + moderate-very hard), outer Brisbane/Moreton Bay (chloramine + moderate hard), and some Adelaide Plains zones — the two mechanisms do not simply add together. They compound, because they attack hair structure through different pathways simultaneously, and because the damage from one mechanism reduces the hair's resistance to the other.
Chloramine oxidises and strips the 18-MEA lipid layer from the cuticle surface. This lipid layer normally acts as a partial barrier to calcium ion adsorption — an intact 18-MEA surface is less susceptible to mineral deposition than a stripped one. By removing this barrier, chloramine increases the cuticle's vulnerability to calcium deposition from hard water. Simultaneously, calcium deposited between cuticle scales lifts the scales apart, exposing more internal cuticle surface to chloramine contact in subsequent showers. Each mechanism potentiates the other — the combined damage is greater than the sum of individual factors.
This compounding effect also reduces the effectiveness of conditioners and hair masks: chloramine has stripped the surface lipids, reducing the conditioning agent's target substrate; calcium deposition has positively charged the hair surface, repelling rather than attracting the cationic conditioning molecules. Adelaide and outer Brisbane households who use premium conditioning treatments and see limited results are experiencing this chemistry — the treatment is reaching a chemically disrupted, calcium-coated surface rather than the intact keratin it was formulated for.
How Your City's Water Chemistry Affects Your Hair and Skin
What Filtration Actually Addresses — And What It Doesn't
| Concern | Addressed by standard carbon? | Addressed by KDF? | Addressed by water softener? | Addressed by RO (drinking only)? |
|---|---|---|---|---|
| Free chlorine (shower) | Partial — if flow is slow enough | ✓ Yes — 99%+ removal | ✗ No | ✗ Not applicable (shower) |
| Chloramine (shower) | ✗ No — inadequate at shower flow rates | ✓ Yes — 99%+ removal | ✗ No | ✗ Not applicable (shower) |
| Hard water / calcium deposition (shower) | ✗ No | Partial — reduces scale and heavy metals; does not soften | ✓ Yes — softener replaces Ca²⁺/Mg²⁺ with Na⁺ | ✗ Not applicable (shower) |
| Chloramine (drinking water) | ✗ No — standard GAC insufficient | ✓ Yes — in drinking filter housing | ✗ No | ✓ Yes — RO membranes reject chloramine |
| TDS / hardness (drinking water) | ✗ No | ✗ No | Partial — softener reduces hardness ions only | ✓ Yes — 95%+ TDS and hardness reduction |
| Heavy metals (shower + drinking) | Partial — carbon block reduces lead | ✓ Yes — KDF reduces lead, iron, mercury, cadmium | ✗ No | ✓ Yes — RO removes heavy metals |
| Scalp sebum disruption | ✗ No — not a filtration issue | ✓ Indirect — by removing chloramine, sebum cycle disruption stops | ✗ No | ✗ Not applicable |
KDF Media — Why It Works Where Carbon Doesn't
KDF (Kinetic Degradation Fluxion) media is a high-purity copper-zinc alloy that removes chlorine and chloramine through an electrochemical redox reaction — not an adsorption mechanism like activated carbon. When water flows through KDF granules, an electrochemical potential difference between the copper and zinc causes oxidation-reduction reactions that convert free chlorine and chloramine to harmless chloride ions. This process is not flow-rate limited in the way carbon adsorption is — it works effectively at the flow rates and temperatures of a standard Australian shower, where activated carbon is demonstrably inadequate for chloramine removal.
KDF additionally inhibits bacterial growth within the filter housing (unlike carbon, which can become a bacterial biofilm site), and removes heavy metals including lead, iron, mercury, and cadmium through electrochemical deposition — relevant for older plumbing and for Perth's groundwater-sourced iron. The HolyH2O Shower Mate and Shower Max use KDF beads independently tested at 99%+ chlorine and chloramine removal — the correct specification for the chloramine-dominant water supply serving Sydney, Brisbane, and Adelaide households.
- KDF — 99%+ chloramine and chlorine removal
- Inline — keeps your existing shower head
- Heavy metals reduction (lead, iron, mercury)
- Inhibits bacterial biofilm growth
- Universal fitting — no tools, 5 minutes
- Renter-suitable
- Lifetime Guarantee on housing
- KDF — 99%+ chloramine and chlorine removal
- All-in-one shower head replacement
- No separate filter body
- Heavy metals reduction
- Inhibits bacterial biofilm growth
- Renter-suitable
- Lifetime Guarantee on housing
Why results are visible within 30–60 days: Hair grows approximately 1–1.5 cm per month. Once shower chloramine exposure stops, new growth emerges from the follicle without ongoing chemical oxidation. Existing hair does not repair — but new growth is measurably less porous, and the scalp's sebum cycle normalises within 4–6 weeks as the chloramine disruption stops. The observable result is new growth with better texture, reduced scalp reactivity, and — particularly in colour-treated hair — significantly slower colour fade from the regrowth line. This timeline is consistent across the documented user experiences from KDF shower filter adoption.
Shop Shower Mate → Shop Shower Max →🔬 What the science says, plainly: Free chlorine oxidises hair keratin and strips the cuticle's lipid layer. Chloramine does the same and penetrates deeper into the hair shaft with an additional ammonia-driven mechanism. Hard water deposits calcium between cuticle scales, physically disrupting moisture retention and reducing conditioning effectiveness. Hot showers double the reaction rate and maximise chemical penetration. The combination of chloramine and hard water compounds both mechanisms through mutual potentiation. KDF media in a shower filter removes chlorine and chloramine at 99%+ through electrochemical conversion — the only shower filtration approach that works at Australian tap water flow rates and temperatures for chloramine-dominant supplies. The results are biochemically predictable and typically observable within 4–8 weeks of daily use.
Frequently Asked Questions
Does shower water actually damage hair, or is this marketing?
The mechanisms are documented in peer-reviewed materials science and dermatology literature — this is not marketing language. Free chlorine's oxidation of hair keratin disulfide bonds has been studied since the 1970s in the context of swimming pool hair damage, and the mechanism applies identically to shower water (at lower concentration over longer cumulative time). Hard water's calcium deposition on hair cuticles was confirmed in controlled studies in the International Journal of Trichology with electron microscopy imaging of cuticle degradation. The compounding of chloramine with hard water in Australian cities like Adelaide is less studied as a specific combination but follows mechanistically from the well-established individual pathways. The observable user experiences with KDF shower filters are consistent with the documented mechanisms — new hair growth without ongoing chloramine oxidation is measurably different in texture and porosity to hair grown under daily chloramine shower exposure.
Is chloramine worse for hair than free chlorine?
Yes — for several compounding reasons. Chloramine does not dissipate naturally from water at room temperature, meaning it remains in the water in full contact with hair and skin for the entire shower duration. Its ammonia component penetrates the hair shaft more deeply than free chlorine at equivalent concentrations. It is not addressed by standard activated carbon at shower flow rates — meaning most shower filters sold in Australian hardware stores are doing nothing about the primary disinfectant in Sydney, Brisbane, or Adelaide's water. And chloramine at tap water concentrations (~0.8–1.2 mg/L) is present in every shower of every day for urban Australians on these supplies — the cumulative annual dose is vastly greater than occasional swimming pool exposure at higher concentrations. The differential in hair condition between people in Melbourne (free chlorine, soft water) and Adelaide (chloramine, hard water) is a real, measurable, chemistry-driven phenomenon.
Will a shower filter fix my dry hair?
It depends on what is causing the dryness — and whether you are on chloramine or free chlorine. If your water supply uses chloramine (Sydney, Brisbane, Adelaide, most of regional Australia), a KDF shower filter removes the primary daily chemical stressor on your hair. New growth emerging from the follicle without ongoing chloramine oxidation will have better moisture retention, lower porosity, and improved response to conditioning. Existing hair does not repair — the damage to disulfide bonds and cuticle lipids is permanent in those hair lengths — but the regrowth will be measurably different within 4–8 weeks. If your water is also hard (Adelaide, outer Brisbane, Perth), the KDF filter addresses the chloramine or chlorine component but not the calcium deposition — for hard water, a softener provides whole-house hardness reduction, or a KDF filter used alongside a chelating shampoo (designed to bind and remove calcium from the hair shaft) addresses the mineral component at lower cost and complexity.
Does a shower filter help with eczema or sensitive skin?
The skin barrier research supports a mechanistic link between chloramine and chlorine shower exposure and eczema exacerbation — through ceramide oxidation, skin microbiome disruption, and (for hard water) filaggrin-degrading pH elevation. The most robust evidence is for hard water's association with eczema in infants — multiple UK epidemiological studies have found statistically significant correlations between regional water hardness and childhood eczema prevalence. For chloramine specifically, the mechanism is plausible and consistent with the broader literature on skin barrier chemistry, though large-scale randomised trial evidence in shower filter users is limited. Dermatologists who recommend shower filters for eczema patients typically do so on the basis of the mechanistic plausibility and the low risk of the intervention — removing a known skin irritant from daily shower contact is a logical first step in eczema management, particularly in chloraminated cities. Results are individual and not guaranteed, but the biochemical rationale is sound.
Why does my standard shower filter not seem to make any difference?
Almost certainly because it uses activated carbon (GAC) media and you are in a chloramine supply area. Standard activated carbon shower filters are designed and tested for free chlorine removal — they adsorb free chlorine at adequate contact times and perform well in Perth (free chlorine) but are largely ineffective at the flow rates and contact times of a normal shower for chloramine removal. If you are in Sydney, Brisbane, Adelaide, or most regional Australian cities, your standard carbon shower filter is not removing the primary disinfectant in your water, and you will notice no improvement in hair or skin. The correct media for Australian chloramine-dominant supplies is KDF — an electrochemical conversion process that works at full shower flow rates regardless of water temperature. Replacing a standard carbon shower filter with a KDF filter in a chloramine supply area is the single most impactful shower water quality change available.
🚰 Is Your City's Tap Water Safe? Series 2026 — HolyH2O
- Sydney — Is Sydney Tap Water Safe to Drink in 2026?
- Melbourne — Is Melbourne Tap Water Safe to Drink in 2026?
- Brisbane — Is Brisbane Tap Water Safe to Drink in 2026?
- Perth — Is Perth Tap Water Safe to Drink in 2026?
- Adelaide — Is Adelaide Tap Water Safe to Drink in 2026?
- What does shower water do to your hair and skin? (this article)
The Science Is Clear. The Solution Is Simple.
Chloramine strips your hair's protective lipid layer every single shower. Standard carbon filters don't touch it. KDF does — in the 5 minutes it takes to install Shower Mate. 100-day money-back guarantee. Lifetime Guarantee on housing. Free shipping Australia-wide.
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Disclaimer: Scientific references include Brown, Bishop and Rowan (1984) American Journal of Public Health; Srinivasan et al. (2013, 2016) International Journal of Trichology; Open Access Research Journal of Biology and Pharmacy (2024) chronic effects of pool disinfectants on hair and skin; PureShowers UK peer-review summary (2025); and MDhair and Hims published clinical summaries (2025). All mechanisms cited are based on published peer-reviewed literature. Individual results from shower filtration will vary. This post does not constitute medical or dermatological advice. Consult a dermatologist or trichologist for specific skin or hair health concerns.