PDRN is a DNA-derived ingredient composed of polymerized deoxyribonucleotide fragments that stimulates tissue repair, angiogenesis, and fibroblast activity, primarily via adenosine A2A receptor activation and salvage-pathway nucleotide supply. It is used in injectable and topical formulations for skin rejuvenation, wound healing, and hydration.
| Reported effect | How often | Notes |
|---|---|---|
Injection-site pain or stinging | Common | Transient discomfort during and shortly after injectable administration. |
Localized erythema and swelling | Common | Temporary redness or edema at the application or injection site, usually resolving within hours to days. |
Bruising at injection site | Uncommon | Related to needle trauma rather than the molecule itself. |
Itching or mild local irritation | Uncommon | Generally self-limiting. |
Hypersensitivity or allergic reaction | Rare | Possible given the biological (often fish/salmon-derived) origin; relevant for those with fish allergies. |
Infection or nodule formation | Very rare | Associated with injection technique and asepsis rather than the ingredient. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.