For people with coloured, highlighted, bleached or otherwise chemically treated hair who want their colour to last longer and their lengths to feel less dry. It suits any colour type and works as an at-home weekly treatment between salon visits.

Coloured hair loses pigment fastest when the cuticle stays raised and dry. The Color Save mask works on that point: hyaluronic acid brings moisture back into the strand and the formula is designed to close the cuticle, which the brand says helps prevent fading and dullness. It is a sensible weekly step for anyone paying for regular colour who wants it to look fresh for longer.

• Wash with a colour-safe shampoo and towel-dry.
• Apply through damp hair from mid-lengths to ends.
• Leave on for 3 to 5 minutes.
• Rinse thoroughly, preferably with lukewarm rather than hot water.
• Use 1 to 2 times a week.

Pros

• Focused on the two main problems of dyed hair, fading and dryness, in one treatment
• Also smooths frizz, which often comes with colour damage
• Quick 3 to 5 minute processing
• Sulfate-free, paraben-free and cruelty-free per the brand

Cons

• A mask can slow fading but can't stop it; heat, sun and harsh shampoos still take colour out
• No toning pigment, so it won't correct brassiness on blonde hair
• No full ingredient list published by the brand