For blonde, highlighted, lightened, grey and white hair that has turned warm, yellow or dull between colour services. Matrix positions it for both colour-treated and natural grey-to-white hair.

It is a toning shampoo, so it is aimed at people who want cooler, brighter blonde or silver results. It is not meant for darker hair; for brunettes, Matrix makes Brass Off.

Blonde and silver hair pick up warmth from water, sun and heat styling, and that yellow cast is what makes a fresh colour look dated. So Silver puts violet pigment in the shampoo itself, so every wash cancels some of that warmth and brightens highlights. You control the intensity: a quick lather for maintenance, or a longer second lather when the yellow has built up.

• Wear suitable gloves.
• Apply to wet hair, lather and rinse well. Repeat if necessary.
• For maximum toning, leave the second lather on for 3 to 5 minutes, then rinse.
• Follow with So Silver conditioner.
• Matrix advises a skin allergy test 48 hours before each use. Do not use on the eyelashes or eyebrows, or on a sensitive or irritated scalp.

Pros

• Violet pigment neutralizes brassy warmth and yellow tones on blonde, grey and white hair
• Toning strength can be adjusted by leaving the second lather on for 3 to 5 minutes
• Clarifying cleanse that brightens highlights
• Vegan formula, with a 1000 ml size

Cons

• Contains dye: Matrix advises gloves and a skin allergy test 48 hours before each use
• Sulfate-based, so it is not for anyone avoiding sulfates
• Not designed for dark or brunette hair