Hair & Scalp Concerns

Colour-Treated Hair Care: causes & the ingredients that actually work

Keeping coloured or bleached hair vibrant and healthy. Below we explain what causes it, which ingredients have real evidence behind them, and the products we recommend (top picks are being added soon).

Premium & budget picks for colour-treated hair care — coming soon

We're reviewing formulas and ingredient lists for this concern. Until then, look for products built around Bond Repair Complex, Hydrolyzed Keratin and Argan Oil.

Understand it

What causes colour-treated hair care?

  • Colour fading from harsh shampoos
  • Bleach weakening hair bonds
  • Sun exposure

Look for

Ingredients that work for colour-treated hair care

FAQs

Colour-Treated Hair Care — common questions

What causes colour-treated hair care?

Common causes include: colour fading from harsh shampoos, bleach weakening hair bonds and sun exposure.

Which ingredients work best for colour-treated hair care?

Look for Bond Repair Complex, Hydrolyzed Keratin, Argan Oil and Modern UV Filters. Bond Repair Complex: Rebuilds broken disulfide bonds inside chemically or heat-damaged hair. Hydrolyzed Keratin: Protein that fills gaps in damaged hair or nails for strength and smoothness.

When should I see a dermatologist for colour-treated hair care?

If it is severe, painful, spreading, or hasn't improved after 6–8 weeks of consistent care, see a board-certified dermatologist. Prescription treatments may be needed.

This guide is for general information and isn't a substitute for advice from a dermatologist. Patch-test new products, and avoid strong actives during pregnancy unless your doctor approves.