Brand from South Korea: COSRX. Benefits:Skin boosting serum that revitalizes skin and boost skin's collagen production.Formulated 5 types of PDRN derived from salmon, centella asiatica, rice, lactobacillus, and sea grape, providing a wide range of benefits to skin.Contains 200Da low molecular weight Collagen to moisturize and boost skin elasticity.Enriched with various nutrients like 8 types of Hyaluronic Acids, Panthenol, Niacinamide, and Peptide, offering all-rounded care to skin.Lightweight texture that leaves a refreshing finish on skin.How to use:Apply an appropriate amount on clean skin after toner and gently massage in circular motions to aid absorption.