Does a shower filter help your hair? What the science says | Filterbaby
Skincare·May 14, 2026

Does a shower filter help your hair? What the science actually says.

Yes. Chlorine, chloramine, and microplastics in your shower water affect hair keratin, color, and tensile strength. A quality filter reduces them before they reach your scalp.

Model rinsing her hair under a Filterbaby Pro Series shower

Most U.S. shower water carries chlorine or chloramine and increasingly detectable microplastics. Research has linked these to changes in hair keratin, color fading, and reduced tensile strength. A quality shower filter reduces up to 99% of those contaminants before water reaches your hair — it won’t grow new hair on its own, but for hair that’s thinning, color-treated, breaking, or feeling straw-like, it’s one of the highest-leverage, lowest-friction changes you can make.

How chlorine actually affects hair

Chlorine and chloramine are added to municipal water as disinfectants. They’re effective at killing pathogens, which is why they’re standard treatment. What they’re also doing on contact with hair:

  • Affecting hair keratin disulfide bonds. Research (Watanabe et al.) has shown chlorinated water can affect the disulfide bonds that give hair keratin its structural integrity. Weakened bonds mean more breakage and loss of elasticity over time.
  • Fading hair color. Studies (Yamada et al.) have linked chlorinated water exposure to changes in hair color, particularly for chemically-treated hair.
  • Drying hair out. Chlorine strips the natural lipid layer on the hair cuticle, which is why hair feels dry and “squeaky” after a chlorinated shower or pool.

For someone showering once a day in chlorinated water for years, that adds up to thousands of repeated exposures.

Hair before and after switching to filtered shower water
Filterbaby user, before and after switching from unfiltered shower water to filtered.

What about microplastics?

Microplastics are increasingly detected in tap water at globally measurable levels — 83–94% of U.S. samples in independent studies.

The hair impact is still being researched, and most people would prefer to filter them out at the showerhead rather than rinse them onto their scalp daily. Filterbaby shower filters are designed to reduce up to 99% of microplastics in shower water.

What Filterbaby reduces from your shower water

Before it reaches your scalp.

99%Chlorine reduction (up to)
99%Chloramine reduction (up to)
99%Microplastics filtered (up to)
NSF 177IAPMO Certified

IAPMO Certified to NSF/ANSI 177 standards. Tested reduction performance in lab-certified conditions; ±6% efficacy fluctuation. When used and replaced as directed.

So, does a shower filter help?

For the contaminants above, yes.

  • Reduces up to 99% of chlorine and chloramine — addressing the keratin and color-fading concerns above.
  • Reduces up to 99% of microplastics — addressing what may be a growing daily exposure.
  • Doesn’t require changing your shampoo, conditioner, or treatment — it works upstream of all of them.

If your hair feels drier or more brittle than it used to, is fading color faster, is breaking at the ends, or is getting chemically stressed by daily showers, reducing the contaminants is one of the most direct moves you can make. Just the water hitting your scalp changes.

What a shower filter won’t do
  • Regrow hair that’s already been lost. Hair regrowth involves hormones, follicle health, and (in many cases) clinical intervention. A shower filter is not a hair-growth treatment.
  • Replace your shampoo, conditioner, or treatment. It reduces the water-borne contaminants those products are working against.
  • Show overnight results. Hair is a structural protein with a slow renewal cycle. Most users notice meaningful changes over weeks of consistent use, not days.

What to look for in a shower filter for hair

Six criteria. Filterbaby Pro Series, Showerhead Pro, and Diamond Series all meet them.

  1. American Hair Loss Association certification. Currently held by only one shower filter brand on the market (Filterbaby).
  2. Dermatologist-recommended brand. Confirms skin and scalp health input in product development.
  3. IAPMO Certification to NSF/ANSI 177 standards. IAPMO is the standards body whose Uniform Plumbing Code is adopted as plumbing law in California, Oregon, Washington, Hawaii, and major U.S. cities including Los Angeles, Houston, Seattle, and Portland.
  4. Advanced activated carbon fiber filtration media. The foundation for chlorine and chloramine reduction.
  5. A secondary membrane (ultra-filter or pleated filter). Tightens filtration on microplastics and particulates.
  6. Monthly replacement cadence with subscription pricing. Water pressure drop is the indicator that the filter has reached its working capacity.

Which Filterbaby is right for you?

Three configurations, same filtration standard.

Filterbaby Pro Series Shower Filter

Pro Series

AHLA-certified. Titanium-aluminum housing. Best if your primary concern is hair.

Shop now →
Filterbaby Showerhead Pro

Showerhead Pro

Same Pro filtration in a complete filtered showerhead, with the Revitalizing Pods spa adapter system.

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Filterbaby Diamond Series Shower Filter

Diamond Series

Most accessible entry price. AHLA-certified. Polyethylene pleated filter.

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Also worth knowing — most accessible entry point

Filterbaby Essential Shower Filter — $49.99. The most accessible entry into the lineup. Same IAPMO Certified standard, in-line form factor, monthly refill cadence. Best for first-time buyers or second bathrooms.

For the full side-by-side comparison →

Frequently asked questions

Will a shower filter regrow my hair?
No. A shower filter reduces contaminants in your shower water. Hair regrowth involves follicle biology and (often) clinical treatment. A shower filter is a water-quality input, not a regrowth treatment.
How long until I see a difference in my hair?
Most users notice softer-feeling hair within a few weeks of consistent daily use. Structural changes (less breakage, less color fade) compound over months. Hair is slow to renew, so patience is the honest answer.
Will a shower filter help with hair loss?
Filterbaby is the only shower filter brand certified by the American Hair Loss Association. Reducing the chlorine and chloramine that have been linked to keratin damage and hair stress is a supportive measure. It is not a treatment for hair loss. For that, work with a board-certified dermatologist or hair restoration surgeon.
Is a shower filter worth it for color-treated hair?
Yes. Research has linked chlorinated water to hair color fading (Yamada et al.). Reducing chlorine before it reaches your hair is one of the most direct ways to extend color life between salon visits.
Does Filterbaby have third-party testing?
Yes. Filterbaby shower filters are IAPMO Certified to NSF/ANSI 177 standards, the official U.S. shower filtration standard. Filterbaby is also the only shower filter brand currently certified by the American Hair Loss Association.
How long does the filter last?
For the best spa-quality experience every time, change your filter monthly. The most reliable indicator is a drop in water pressure — that’s the filter telling you it’s reached its working capacity.
Is install really 5 minutes?
Yes. Hand-tighten between your shower arm and showerhead. No plumber, no tools.

References

Sources: Watanabe, T. et al. on chlorinated water and hair keratin disulfide bonds. Yamada, K. et al. on chlorinated water and hair color fading.

Filterbaby Shower Filters are IAPMO Certified to NSF/ANSI 177 standards and certified by the American Hair Loss Association. ±6% efficacy fluctuation from lab-certified testing. When used and replaced as directed. Individual experiences may vary. This page is provided as an educational reference; it is not medical advice.

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