Frequently asked questions

Blue Shampoo is designed to neutralize unwanted orange or copper highlights in blonde, gray or white hair. It is particularly useful for color-treated or bleached hair that tends to yellow or turn orange over time.

Blue shampoo is recommended for :
-Blonde hair (color-treated or natural)
-Gray or white hair
-Light brown or highlighted hair with copper tones

It depends on your hair type and desired result:
-Very light or bleached hair: once a week
-Hair with brassy highlights: 1 to 2 times a week
-Maintenance use: every 7 to 10 days

Do not use daily to avoid bluish or violet highlights.

Light action/maintenance: 1 to 3 minutes

Correction of marked orange tones: up to 5 minutes

Always test on a strand beforehand if using for the first time.

Yes, as it contains pigments, it can slightly stain hands, nails or tile grout if left on too long. Rinse quickly and wear gloves if necessary.

Blue shampoo is not dangerous, but it is formulated for adult use. For pregnant women or children, seek professional advice, especially if you have a sensitive scalp.

It's generally not useful. Blue shampoo is ineffective on black or dark-brown hair, except in the case of light highlights or balayage.

Yes, especially if you have warm highlights that you want to neutralize. It can also revive dull gray or white hair.

Blue shampoo contains blue pigments that neutralize copper/orange highlights. According to the color wheel principle, blue cancels out orange. It is therefore particularly useful for dark blond to light chestnut hair prone to these undesirable highlights.

Yes, it's formulated for all hair types:

Colored/bleached: it helps preserve a cool tint longer.

Natural: it can correct warm highlights or revive color.

Yes, exposure to the sun, chlorinated water, sea salt or pollution can oxidize pigments and turn color yellow or orange. Blue Shampoo helps to correct and prevent these effects.