Cited skincare — peer-reviewed evidence, no upsell.
As

Asiatic Acid & Madecassic Acid (Centella triterpene acids)

Asiatic Acid · Madecassic AcidSoothing

The free triterpene acids from centella (cica). In lab studies they raised collagen-I output by skin cells — a mechanism, not a proven visible result.

What it does

Asiatic acid and madecassic acid are two of the active triterpene compounds in Centella asiatica (cica). In cell-culture studies they stimulated type-I collagen production by skin fibroblasts, and the effect was greater when vitamin C was present (vitamin C is a cofactor for collagen formation). That makes pairing them with vitamin C mechanistically reasonable. The important caveat: this is in-vitro evidence — a plausible mechanism, not proof of a visible result on real skin, which would need clinical trials. Centella as a whole is better known for its soothing, barrier-supporting profile.

The evidence, graded

emergingIn lab studies, asiatic acid and madecassic acid (the triterpene acids from centella) raised type-I collagen output by skin fibroblasts, and the effect was greater when vitamin C was also present. This is in-vitro evidence — a plausible reason to pair them, not a proven visible result on real skin.Bonté 1994 · Planta Medica ↗

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

Also known as

centella acids, triterpene acids

Pairs worth knowing

L-Ascorbic Acid (Vitamin C) · works together ↗Centella Asiatica (Cica) · works together ↗
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
Want more like this?
Get Drop, free. Every flag cites its source, the app tells you when your routine is complete, and it helps you simplify — instead of selling you more products.
Get the free appHow Drop works