Asiaticoside

Centella asiatica is not a single active — it's a botanical containing at least four distinct triterpenoid compounds, each with slightly different pharmacology. Asiaticoside is the collagen-stimulating standout. Where madecassoside (the one K-beauty brands put on the label) is primarily anti-inflammatory, asiaticoside directly activates fibroblasts and increases type I and type III collagen synthesis. That's why the prescription French wound-healing cream Madecassol and the TECA complex (Titrated Extract of Centella Asiatica — a 1:1:1:1 mix of the four compounds) deliver measurably faster scar remodeling than centella extract alone. Clinical use goes back decades for wound-healing, diabetic ulcers, and post-surgical scar prevention; the cosmetic application is a more recent translation of that same mechanism for fine lines, post-inflammatory pigmentation, and post-laser recovery. For skincare consumers, the practical takeaway: if you see just 'centella extract' on the label, you're getting some asiaticoside but the dose is uncertain. If you see 'TECA complex' or standardized triterpenoid percentages, you're getting a clinically-characterized formulation. COSRX, Skin1004, and French clinics have historically used TECA; most 'cica' products use whole-plant centella extract that bets on the whole-botanical effect. Evidence rating 4 because the wound-healing and post-procedure recovery data is genuinely strong — stronger than the broader centella body of work.