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Skip it if you're currently using retinol at night
so it sits somewhere between flower shop and skin scent depending on how much you apply
It works on everything — foundation
Three sprays in the morning hold through the day without needing a top-up
American Crew Classic Developer 450ml - 15 Vol. 4.5% After Sun Skip it if you're currently15 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.