Redken calls this the brand's most concentrated hair repair system, noting that it's specially formulated for color-treated, ...

Currently, the REDKEN Acidic Bonding Concentrate Shampoo & Conditioner set (2x 300ml) is 10% off at Look Fantastic (now £46.26 from £51.40) and has received some very high praise.

Just like the shampoo, you should check the PAO. Taking to the review section for the REDKEN Volume Injection Shampoo and Conditioner Set, shoppers gave it a lovely 4.5 stars out of five.

Get the Redken All Soft Shampoo for $27 at Amazon! See it! Over 17,800 Amazon shoppers have given this miracle-working shampoo a five-star rating. "Changed my hair," one person wrote.

Redken's All Soft Duo is seven times more conditioning than a regular shampoo and conditioner, so it's no surprise that shoppers say they've noticed a 'significant difference' in their locks.

$44.00 at sephora.com Acidic Color Gloss Sulfate Free Shampoo and Conditioner Keep your hair color vibrant longer by sudsing with this Redken set, which won the GH Beauty Lab’s test of shampoo ...

For those with coarse hair that’s prone to frizz, Cutler recommends Redken’s Frizz Dismiss Shampoo. The sulfate-free shampoo works just as well for curly hair as it does straight hair; after ...