The medicube PDRN Pink Peptide Serum Ultra Light is a refreshing, non-sticky ampoule-serum within medicube's Pink PDRN line — the "Ultra Light" variant designed for daily layering without heaviness, while retaining the full active complex of 5 peptides, 8 hyaluronic acid forms, PDRN, and collagen. Niacinamide is present at a confirmed 3% concentration, sufficient for visible brightening, pore refinement, and barrier support.

The PDRN system is a dual-source salmon complex: Sodium DNA (polynucleotide fragments for tissue regeneration and barrier restoration) combined with Salmon Egg Extract (growth factor-rich roe proteins that complement the DNA-level action with protein-level nourishment). This salmon-origin dual approach is unique among the PDRN serums in this series — distinct from the plant-derived rice PDRN in mixsoon and the ginseng PDRN in VT.

The 8-type hyaluronic acid system is the most architecturally complex HA hydration system in the series, spanning all molecular weight ranges and including specialised forms: Sodium Acetylated Hyaluronate (AC-HA) for extended moisture retention; Hydroxypropyltrimonium Hyaluronate (cationic HA) for surface adhesion; Sodium Hyaluronate Crosspolymer for antioxidant film-forming; and Potassium Hyaluronate for intracellular hydration support. Together they deliver layered, lasting plumpness without water-weight heaviness.

The peptide complex covers five distinct functional classes across the skin's collagen lifecycle: GHK-Cu for structural repair and ECM synthesis; Matrixyl (Palmitoyl Pentapeptide-4) for collagen production signalling; Kollaren (Tripeptide-1) for fibronectin and elastin; EGF (Oligopeptide-1) for cellular regeneration; and Dipeptide-2 for lymphatic drainage. Succinoyl Atelocollagen (acid-treated atelocollagen) adds a highly biocompatible collagen source. Edelweiss Callus Culture Extract provides rare Alpine antioxidant protection. A pearl triple complex (Pearl Extract, Hydrolyzed Conchiolin Protein, Pearl Powder) adds brightening luminosity.

Ceramide NP and Cholesterol reinforce the barrier lipid system. Dipotassium Glycyrrhizate (licorice-derived) soothes. The formula is fragrance-free and alcohol-free — confirmed by Incidecoder. The characteristic soft pink colour of the entire Pink PDRN line comes from Cyanocobalamin (Vitamin B12), consistent with the toner in the same line.

Formulated for all skin types. Particularly beneficial for:

Contains salmon-derived PDRN and Salmon Egg Extract — not suitable for vegan routines or fish allergies. Fragrance-free and alcohol-free. Niacinamide confirmed at 3%. Pink colour from Cyanocobalamin (Vitamin B12), no artificial colorants.