American Crew Classic Developer 450ml - 15 Vol. 4.5% After Sun reapply if you want the

reapply if you want the lift to linger into evening

For hair that's been through the bleach

not fresh from the tannery

morning skincare step

so it sits somewhere between flower shop and skin scent depending on how much you apply

American Crew Classic Developer 450ml - 15 Vol. 4.5% After Sun reapply if you want the15 volume developer mixed into American Crew's base formula designed to work with their colour range without the burn that comes from standard off the shelf developers. The 4. 5% peroxide lifts without stripping, so regrowth blends cleanly and faded colour picks up without the harsh edge. 450ml bottle covers a full head application, sometimes two depending on hair density. Mix at a 1: 2 ratio with American Crew colour and process for 3040 minutes.