Rejuran is a series of polydeoxyribonucleotide (PDRN) skin boosters. PDRN features DNA polymers 50 to 2000 nucleotides in length, it is isolated from the salmon testis and also called a polynucleotide (PN). Numerous clinical experiments have demonstrated an excellent effect of PN on cell growth and tissue regeneration. Rejuran products aim for effective and rapid rejuvenation and hydration of the superficial and deep layers of the skin.