Booster SEOUL 1988 Boosting Ball: Collagen 100%

A freeze-dried ball of hydrolyzed collagen, 35 mg per capsule, sold seven to a pack. Each ball is dissolved into a serum or essence inside its own blister, and the mixture is then applied to face and neck before the rest of the routine. K-SECRET states the ball is 100% Hydrolyzed Collagen and that freeze-drying keeps the collagen dormant until it meets liquid; the brand positions it around firmness and plumpness.