Rejuran PN is an excellent skin enhancer consisting of polynucleotides (PN) suspended in a gel matrix. The PN content in the product is 2%. Polydeoxyribonucleotides (PDRN) have previously been used in anti-aging and hair growth treatments and for skin regeneration. PN is a purer and more concentrated form of PDRN and has stronger regenerative properties. The PN in Rejuran is extracted from salmon DNA, which is known to have excellent biocompatibility with human skin without any immune response, making this skin rejuvenating treatment very suitable for most people.