Rejuran is an injectable treatment whose primary active ingredient is PN (polynucleotide), a DNA-derived substance extracted from salmon milt. When PN is injected into the skin, it promotes skin regeneration and collagen synthesis, helping to enhance skin elasticity, increase dermal density, improve hydration, and reduce redness and pore size. Rather than providing immediate results, Rejuran works by remodeling the dermal layer at a fundamental level. For this reason, it is recommended as a treatment performed from a long-term perspective to achieve optimal skin improvement.
