The Best Way to Wash Colour-Treated Hair

How to wash colour-treated hair so it lasts: how long to wait, water temperature, how often, and the kind of shampoo that cleans without stripping pigment.

NUDA Nectar Bath colour care shampoo with pump, for washing colour treated hair

How you wash matters more than almost anything else for keeping colour. Most fading happens in the shower, where hot water and harsh cleansers open the cuticle and rinse pigment away. Get the wash right and colour holds far longer. Here is the method.

The rules for washing colour-treated hair

  • Wait before the first wash. Give fresh colour 48 to 72 hours to set before it meets water.
  • Wash less often. Every wash fades colour a little. Two or three times a week holds it better than daily washing.
  • Go cooler. Hot water lifts the cuticle and lets pigment escape. Wash, and especially rinse, with cooler water to keep the cuticle flat.
  • Use a gentle, colour-safe shampoo. Avoid harsh SLS and SLES cleansers, which strip pigment fast. A milder wash cleans without that stripping effect.
  • Seal after every wash. A conditioner that seals the cuticle locks colour in and protects against the next wash.
  • Stretch washes with dry shampoo to cut the number of times colour meets water.

Why harsh cleansers fade colour

Strong detergents like SLS and SLES open the cuticle and lift pigment out with every wash. That is the single biggest cause of fast fading. Swapping to a gentle wash that skips those harsh sulphates is the most effective change you can make. More on cleansers in does sulfate-free shampoo actually clean.

A gentle colour-care routine

The simplest colour routine is a gentle cleanse plus a sealing conditioner. Our NECTAR BATH cleans with aloe and wheat protein and skips the harsh SLS and SLES that strip colour, and sealing with a conditioner locks it in. It is ECOCERT COSMOS certified and silicone-free. For the full picture, see how to stop colour-treated hair from fading.

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Frequently Asked Questions

How often should I wash colour-treated hair?

Two to three times a week is ideal. Every wash fades colour a little, so stretching the days between washes, with dry shampoo in between, keeps colour looking fresh for longer.

Should I wash colour-treated hair with hot or cold water?

Cooler water. Hot water lifts the cuticle and lets pigment escape down the drain. Washing and especially rinsing with cool water keeps the cuticle flat and the colour locked in.

How long should I wait to wash my hair after colouring?

At least 48 to 72 hours. Colour needs time to set into the cuticle, and washing too soon rinses pigment away before it has bonded.

What kind of shampoo is best for colour-treated hair?

A gentle, colour-safe shampoo that skips harsh SLS and SLES cleansers. Those strong detergents strip pigment with every wash, so a milder formula that cleans without that effect helps colour last.

Does conditioner help colour last longer?

Yes. A conditioner that seals the cuticle after washing locks colour in and shields it from the next wash, so the better the hair's condition, the longer the colour holds.

Frequently asked questions

How often should I wash colour-treated hair?
Two to three times a week is ideal. Every wash fades colour a little, so stretching the days between washes, with dry shampoo in between, keeps colour looking fresh for longer.
Should I wash colour-treated hair with hot or cold water?
Cooler water. Hot water lifts the cuticle and lets pigment escape down the drain. Washing and especially rinsing with cool water keeps the cuticle flat and the colour locked in.
How long should I wait to wash my hair after colouring?
At least 48 to 72 hours. Colour needs time to set into the cuticle, and washing too soon rinses pigment away before it has bonded.
What kind of shampoo is best for colour-treated hair?
A gentle, colour-safe shampoo that skips harsh SLS and SLES cleansers. Those strong detergents strip pigment with every wash, so a milder formula that cleans without that effect helps colour last.
Does conditioner help colour last longer?
Yes. A conditioner that seals the cuticle after washing locks colour in and shields it from the next wash, so the better the hair's condition, the longer the colour holds.
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