The One Serum: Hydrating & Anti-inflammatory Nourishment with 24k Gold | Snail Mucin Growth FactorTreat your skin to the powerhouse of all serums. The One Serum is a "do it all" clean formula that works to hydrate, reverse signs of aging, and protect the skin with exclusive Snail Mucin Growth Factor (a peptide extracted from snail secretions) paired with 24K Gold. Its antibacterial properties also make this our secret for clear skin during these acne inducing, mask wearing days. There's more than a few reasons why this serum is "the one."