The regenerating mask ingredient that crossed from medical aesthetics into K-beauty skincare

PDRN from clinic to mask: how the active was adapted for topical use

PDRN (Polydeoxyribonucleotide) — a regenerative DNA fragment derived from salmon gonads — has been used in medical injectable treatments for wound healing, orthopedic tissue repair and aesthetic skin rejuvenation since the 1980s in Korea and Europe. The injectable PDRN works by activating adenosine A2A receptors on fibroblasts, triggering collagen production, anti-inflammatory signalling and angiogenesis. Topical PDRN in mask format uses hydrolysed, lower molecular weight PDRN fragments that can penetrate the stratum corneum and interact with upper epidermal receptors — producing a gentler but consistent regenerative stimulus at home.

Skin turnover and the case for a PDRN renewal mask

Skin renewal — the complete turnover cycle from basal cell formation to surface cell shedding — takes approximately 28 days in young skin and progressively slows with age. PDRN accelerates this cycle by stimulating fibroblast proliferation and providing the nucleotide building blocks that cells need for DNA synthesis during division. Used as a weekly mask, PDRN provides the regenerative stimulus at the start of each turnover week, producing skin that renews more efficiently and achieves a more complete quality of new cells with each cycle. The cumulative effect over three to six months of weekly use is a measurable improvement in skin density, firmness and surface quality.

Combining a PDRN mask with a PDRN daily serum for maximum regenerative effect

The most effective PDRN protocol combines a daily PDRN serum (low dose, consistent daily delivery) with a weekly PDRN mask (high dose, intensive weekly delivery). The daily serum maintains ongoing PDRN stimulation of fibroblast activity between mask sessions; the weekly mask provides the concentrated dose that drives the more intensive renewal cycle. This two-format approach — maintenance plus intensive — mirrors the clinical protocol of regular PDRN injectable maintenance between intensive booster sessions, adapted for topical home use.

REJURAN Turnover Mask 1pack (40ml x 5pcs) — available on BuyBeautyKorea →