Purified DNA fragments from salmon, injected into the dermis to signal repair — that is what a salmon DNA PDRN injection is. The class covers two ingredients, PDRN and the more refined PN used in Rejuran, offered from ₩149,000 (≈ $106) per session at Kind Global Clinic Myeongdong.
A salmon DNA PDRN injection is a regenerative skin treatment: fragments of deoxyribonucleic acid, extracted and purified from salmon, are placed into the skin in a grid of micro-injections, where they act as a biological signal — supporting fibroblast activity, tissue repair and elasticity — rather than as a filler that adds volume. The search term bundles two distinct ingredients, and the distinction is the single most useful thing this page can give you. PDRN (polydeoxyribonucleotide) is the shorter-fragment form with a long history in wound-healing and regenerative medicine. PN (polynucleotide) is a higher-molecular-weight, further-refined fraction — and PN, not PDRN, is what Rejuran, the Korean-manufactured product behind the 'salmon DNA' trend, actually contains.
Why salmon? Salmon DNA is unusually compatible with human tissue, provokes minimal immune response after purification, and is harvested from a controlled, traceable source — which is why both PDRN and PN products built on it have accumulated a substantial clinical literature. At Kind Global Clinic Myeongdong, both forms exist on the published menu at fixed KRW rates: PN sessions from ₩149,000 (≈ $106) for the HB 1cc tier and ₩179,000 (≈ $128) for Healer 2cc, and a targeted PDRN injection at ₩100,000 (≈ $71) for 1cc in acne and scar care. Which fragment class fits your skin is a physician judgment made in a 15-20 minute co-director consultation — not a menu order, and never a substitute term for the other.