The two ways shower water destroys hair colour
1. Chlorine oxidation
Chlorine is an oxidant — the same chemistry used in bleaching. Every shower subtly oxidises your dye molecules, breaking them down and causing fading. This is why colour fades in chlorinated swimming pools, and why it fades in chlorinated tap water.
2. Limescale mineral buildup
Calcium and magnesium ions bind to dye molecules, lifting them from the hair shaft. Hard water also swells the hair cuticle, allowing colour to escape faster with each wash.
Hairdresser insight: Hard water can reduce colour lifespan by 30–40%. Many professional colourists recommend filtered water rinses for colour-treated clients.
The solution
A shower filter removes 97% of free chlorine and reduces mineral deposits. Coloured-hair users typically report colour lasting 2–3 additional weeks per treatment — significant savings on colour appointments.
Protect your colour investment — from €49.99
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