Foam & Mousse Schwarzkopf BC Bonacure Collagen Volume Boost Perfect Foam 200ml Schwarzkopf SCH250 €15.90 Schwarzkopf BC Collagen Volume Boost Perfect Foam is a styling mousse that gives fine, inert hair weightless volume. The formula is airy and light, ideal for shaping fine, inert hair, adding volume without overloading. ADD TO CART