Rejuran Healer contains PN (Polynucleotide), which is a purified form of salmon DNA. PN is well-known for its cell regenerative benefits. It stimulates skin renewal and collagen production from the inside out, repairing damage done by aging and effectively increasing skin elasticity. PN consists of longer strains of DNA, which means that PN is able to stay in the skin longer, providing support whilst the skin is healing and repairing itself. Ideal for topical and microneedle, or dermaroller application.