Centella (Cica), Explained: Why It's in Almost Every Barrier Cream Now

Cica has become shorthand for "this won't hurt you." It goes on the pastel packaging, next to the words calming and soothing, and it usually means the brand wants you to file the product under gentle rather than active. Which is a strange fate for an ingredient that got into skincare through wound dressings.

It didn't start as a skincare ingredient

Before it was cica, it was tiger grass — a nickname that arrives with a story attached. The usual telling is Laotian: villagers noticed wounded tigers rolling in patches of the herb and worked out the animals were treating themselves. It's folklore rather than documented observation, and it's worth holding it as such — no one has actually recorded a tiger self-medicating. But it points at the right thing, which is that this plant was valued for closing wounds long before it was valued for feeling nice on a face.

Centella asiatica has a long history in traditional medicine across Asia, and its route into the products on your shelf ran through pharmacy, not beauty. Extracts of it were formulated for wound care and scar management decades before anyone put it in a serum. That origin is the useful thing to hold onto: cica was picked up because it appeared to help damaged skin close and rebuild, not because it was soothing.

The four compounds doing the work

"Centella asiatica extract" on an ingredient list is really a bundle of four related triterpenoids -- asiaticoside, madecassoside, asiatic acid and madecassic acid. A 2025 review in Pharmacia covering the mechanistic and clinical literature describes them acting across several pathways at once: driving extracellular matrix production through TGF-β/Smad signalling, damping inflammatory signalling via NF-κB and JAK/STAT3, and offering some antioxidant and photoprotective effect.

Translated out of the journal: it nudges skin toward building, and it turns down the noise that stops skin from building. Two things at once is unusual for a botanical, and it's the honest reason cica is everywhere rather than a marketing accident.

Does Cica Actually Repair a Damaged Skin Barrier?

Partly, and not in the way the word "repair" implies. Cica addresses the inflammation that keeps a compromised barrier stuck in a reactive loop -- the stinging, the flushing, the sense that everything you apply is now a problem. What it doesn't do is supply the ceramides, cholesterol and fatty acids the barrier is physically made of.

So a cica product is a good call when your skin is angry. It's an incomplete call when your skin is angry because it's been stripped. In that case cica calms the symptom while a proper lipid-containing moisturiser rebuilds the thing that's actually missing. Most well-built barrier creams do both, which is exactly why cica and ceramides keep showing up on the same ingredient list.

Where it earns its place in a routine here

Reactive skin in Singapore usually gets that way from a combination of UV, sweat and whatever actives you're running. Cica is most useful at the two points in the day where irritation is most likely to be introduced.

At the sunscreen step, TOCOBO's Cica Calming Sun Serum ($20) puts it in the one product almost everyone applies to already-warm skin — and sunscreen is the step people abandon first when their face starts objecting to it. At the moisturiser step, PURITO SEOUL's Wonder Releaf Centella Cream Unscented ($27) is the version for skin that's currently reacting to fragrance too; the unscented reformulation exists precisely because the original was still too much for some people.

VT's Cica Collagen and Cica Reti-A sheet masks ($24 for 30) are the low-commitment entry point if you want to find out whether your skin likes cica before buying a full-size cream.