Centella asiatica — known across Asia as gotu kola, "tiger grass" and cica — is the small, unassuming herb that built the entire K-beauty calming category and is now the gold-standard reach for redness, sensitivity, post-procedure recovery and barrier repair. Behind the simple green leaf is a quartet of remarkable molecules — madecassoside, asiaticoside, madecassic acid and asiatic acid — that together accelerate wound healing, stimulate collagen synthesis, reduce inflammatory cytokines and support ceramide production. If your skin is reactive, sensitised or recovering from anything, centella is the molecule that quietly does the heavy lifting. To go even deeper on its star isolate, pair this guide with the dedicated madecassoside vs centella deep dive.
What centella asiatica actually is
Centella asiatica is a small, creeping herbaceous plant in the Apiaceae family — same family as carrots, parsley and coriander. Native to tropical Asia, it grows wild in wet, sub-tropical clearings, paddy edges and roadside ditches across India, Sri Lanka, Indonesia, the Philippines and southern China. It has been a staple of Ayurveda, Traditional Chinese Medicine and Indonesian Jamu medicine for at least two thousand years, used internally for memory and longevity, and externally for wound healing, leprosy lesions and burns. Its English nickname "tiger grass" comes from the folk observation that wounded tigers roll in patches of the herb — apocryphal, perhaps, but the wound-healing reputation is real.
Scientifically, the active fraction of the leaf is a group of pentacyclic triterpenoids known as centellosides. The four main ones are asiaticoside, madecassoside, asiatic acid and madecassic acid — together often labelled TECA (titrated extract of centella asiatica), CICA (centella isolate complex) or simply "centella extract" on ingredient lists. Madecassoside is the most potent for skin repair and is sometimes isolated and sold as a standalone ingredient. Crude centella extracts in skincare typically contain a mix of all four, while pharmaceutical-grade extracts are standardised to a specific triterpene percentage.
In Korean beauty culture, centella ("cica" in K-beauty shorthand) became the defining calming ingredient of the late 2010s and has held that position since. The result: hundreds of cica creams, ampoules, toners and sheet masks, many of which list centella far down the ingredient list with minimal active triterpenes. Look for products that specify either a TECA percentage or call out individual triterpenes like madecassoside at ≥0.1%. For the broader barrier story that centella helps fix, the ceramides guide is the natural complement.
How centella asiatica works on skin
Centella's triterpenes have three main, well-documented actions on skin. The first is fibroblast stimulation — asiaticoside in particular upregulates collagen types I and III synthesis, glycosaminoglycan production and the proliferation of dermal fibroblasts. This is the mechanism behind centella's reputation for fading new scars, accelerating wound closure and supporting skin firmness. The second action is anti-inflammatory: madecassoside and madecassic acid suppress pro-inflammatory cytokines like TNF-alpha and IL-6, and inhibit the NF-κB pathway that drives chronic redness in conditions like rosacea, perioral dermatitis and sensitive skin. The third action is antioxidant — centella's triterpenes are potent free-radical scavengers, particularly against UV-induced reactive oxygen species.
A fourth, less-discussed action is support for the skin barrier itself. Studies have shown that centella extract increases ceramide synthesis in keratinocytes, which directly strengthens the lipid lamellae that hold moisture in and irritants out. This is part of why cica creams have become the standard recovery product for skin damaged by over-exfoliation, harsh retinoids, lasers or chemical peels. It also explains why centella stacks so productively with ceramide creams — they hit the same end-point through complementary mechanisms.
Concentration matters. Clinical studies on TECA generally use 1%–5% in topical formulas, with the strongest data at 5%. Madecassoside-isolate products typically deliver 0.1%–0.5%. Below 0.5% TECA or 0.05% madecassoside, the effect is essentially symbolic — useful for marketing but not delivering measurable change. For the wider K-beauty playbook that includes centella, see our glass skin routine guide.
Who should use it (and who shouldn't)
Centella is one of the most universally suitable cosmetic ingredients. It works for sensitive and reactive skin (anti-inflammatory triterpenes), rosacea (cytokine suppression), eczema-prone skin (barrier-rebuilding), post-procedure recovery (wound healing acceleration), acne-prone skin (low comedogenicity plus inflammation reduction), pigmentation (calming the inflammation that drives PIH), and ageing skin (fibroblast and collagen stimulation). It is safe during pregnancy and breastfeeding when used topically and is well-tolerated by children's skin.
Caveats are minor. A small subset of people are allergic to plants in the Apiaceae family (carrots, parsley, celery, coriander) and should patch test centella products. Some cica formulas use fragrances and essential oils that themselves trigger reactivity — read the full ingredient list rather than trusting "cica" on the front of the bottle. And as with all calming ingredients, centella is restorative, not transformative: if you have established hyperpigmentation, deep wrinkles or active cystic acne, centella alone won't solve those — it works best as a barrier-supporting partner to more targeted actives. For everyday redness, however, it is hard to beat.
How to actually use it
Centella is a "use it generously, use it twice daily, use it indefinitely" ingredient. Apply after cleansing — either as a thin serum/ampoule layer before moisturiser, or as a cica cream functioning as the moisturiser itself. There is no ramp-up phase, no irritation curve, no purge. The molecule's gentleness is part of its identity.
Centella stacks beautifully with almost everything. Layer it after vitamin C, niacinamide or retinol to buffer irritation; pair it with hyaluronic acid for a calm hydration combo; combine it with aloe vera and panthenol for a post-sun rescue routine; layer it under a ceramide-rich moisturiser to accelerate barrier rebuilding. It is also a star ingredient in post-procedure protocols — apply liberally after a peel, microneedling or laser, where its wound-healing triterpenes shine. Avoid pairing it with high-strength AHAs or BHAs in the same routine step — centella's calming film is best applied AFTER the exfoliating acid has had its window of activity, not co-applied.
A bedtime tip from K-beauty: the "slugging plus cica" technique — apply a thin cica serum, then a thick layer of cica cream, then a hydrocolloid or occlusive sealant (petrolatum or a thick balm) over the top. This is the gold-standard rescue protocol for skin that has been over-exfoliated, over-retinoled or wind-burned. For longer-term programs to bring dull, tired skin back to life, see the dull skin glow recovery guide.
THE 4-STEP CICA ROUTINE
Top centella products compared
| Product | Format | Centella % | Pairs well with | Best for |
|---|---|---|---|---|
| Skin1004 Madagascar Centella Ampoule | Ampoule | 100% extract | Hyaluronic acid, ceramides | Acute redness, sensitive |
| La Roche-Posay Cicaplast Baume B5 | Balm | Plus 5% panthenol | Panthenol, niacinamide | Post-procedure, eczema |
| Dr Jart+ Cicapair Tiger Grass Cream | Cream | TECA standardised | Niacinamide | Rosacea, redness |
| Purito Centella Green Level Buffet Serum | Serum | ~49% centella complex | Snail mucin, peptides | Daily K-beauty routine |
| COSRX Centella Blemish Cream | Spot cream | Centella + zinc | Salicylic acid | Inflamed blemishes |
6 mistakes that ruin centella results
1. Buying "cica" products with centella far down the ingredient list. If centella appears below the preservatives, the active dose is symbolic. Look for the percentage on the label.
2. Treating it as a once-off rescue. Centella works through cumulative anti-inflammatory and collagen-supporting actions. Twice daily for at least 8 weeks is where the visible payoff sits.
3. Using fragranced cica creams on already-irritated skin. Some K-beauty centella formulas contain heavy fragrance or essential oils that undo the calming benefit. Read the whole ingredient list.
4. Skipping it on "good skin days". Centella's biggest contribution is preventing the inflammation flares that follow stress, weather changes and harsher actives. Use it consistently, not just in emergencies.
5. Pairing it with exfoliating acids in the same step. Centella's film blunts the acid's window of activity. Apply the acid first, wait 10 minutes, then layer centella to soothe.
6. Forgetting it stacks with ceramides. The biggest visible barrier results come from combining centella's collagen stimulation with ceramide replenishment from a dedicated cream on top.
Frequently asked questions
Is centella asiatica safe during pregnancy?
Topical centella is widely regarded as pregnancy-safe and is a go-to for redness and post-pregnancy stretch-mark routines. Oral centella supplements are a different question — always check with your healthcare provider before taking any supplement during pregnancy.
Does centella help acne scars?
For fresh, atrophic scars and post-inflammatory marks, yes — centella's collagen-stimulating triterpenes support skin remodelling over 8–16 weeks. Established deep scars need procedural treatments. For the body version of this story, see our aloe vera guide.
Centella vs niacinamide for redness?
They complement each other rather than compete. Niacinamide reduces redness via vasoconstrictor pathways and barrier support; centella works on inflammatory cytokines and fibroblast repair. Many of the best K-beauty serums combine both.
How long until I see results?
Immediate calming and reduced reactivity within days. Visible reduction in redness within 2–4 weeks. Collagen-related improvements (firmness, scar softening) over 8–16 weeks of consistent use.
Is cica the same as centella?
"Cica" is K-beauty shorthand for centella asiatica or centella-derived complexes. The two terms are functionally interchangeable on a product label, though "cica" sometimes implies a marketing focus rather than a pharmacologically standardised extract.
Can I use centella with retinol?
Yes, and it is one of the smartest buffering pairings in skincare. Apply retinol first, let it absorb 10 minutes, then layer centella to neutralise irritation without significantly blunting the retinol's effect.
Does centella thin the skin like steroids?
No — centella actually does the opposite. It stimulates fibroblasts and collagen synthesis, which thickens and reinforces the dermis. It is sometimes used as a steroid-free option for managing chronic redness without the thinning side effect.
Can I use centella all over my face every day?
Yes — twice daily, all over, for as long as you want. It is one of the few skincare ingredients with no realistic upper limit on duration of use, and the longer you use it, the more its cumulative collagen and barrier benefits compound.
Bottom line
Centella asiatica is the quiet workhorse behind almost every successful sensitive-skin routine of the last decade. It doesn't promise miracles, doesn't peel you, doesn't make your face shed for a fortnight before paying off. It calms inflammation, supports the barrier, accelerates healing and gently stimulates the collagen your skin uses to repair itself. For reactive, rosacea-prone, post-procedure or simply tired skin, it is closer to a non-negotiable than a "nice to have".
Choose a standardised extract or a madecassoside-isolate product, use it twice daily, layer it with hydration and ceramides, and resist the urge to bounce between brands. For a partner read on the gentle hydrator that pairs perfectly with cica, see aloe vera — the ultimate skin soother, and for the calming complement when redness is your primary concern, the dedicated bisabolol guide is the obvious next step.
