How Chlorine in Shower Water Damages Hair (and How to Stop It)

Everyone knows pool chlorine is hard on hair. Fewer people realize the same chemical is in their shower every single day. It's a lower dose, but it adds up: 10 minutes a day, 365 days a year.

What chlorine actually does to hair

• Strips natural oils. Your scalp produces sebum to keep hair soft and protected. Chlorine dissolves it, leaving hair dry and brittle.
• Roughens the cuticle. The outer layer of each strand lifts and frays, which reads as frizz, dullness and tangles.
• Fades color. If you color your hair, chlorine oxidizes dye molecules and shortens the life of every salon visit.
• Irritates the scalp. Dry, flaky, itchy scalps often improve dramatically once chlorine is removed.

Signs your shower water is the problem

Hair feels squeaky or straw-like right after washing. Frizz that no product fixes. Color that fades in weeks. A scalp that itches even with gentle shampoo. If several of these sound familiar, your water is working against your hair care, not with it.

The fix takes two minutes

A shower filter removes up to 99% of chlorine before the water hits your head. The Filtergenius filter uses 12+ layers, including KDF-55, calcium sulfite and vitamin C, each chosen for a specific job — see the lab results.

It screws onto any standard shower arm in about two minutes. No plumber, no tools. Just follow the guide, and replace the cartridge every six months.

Swimmers: your needs are bigger than a filter. Read our guide on protecting hair before swimming.