Quick Reference — Centella Asiatica
Ingredient typePlant extract — Apiaceae family
INCI namesCentella Asiatica Extract · Centella Asiatica Leaf Water
Also calledGotu kola · Tiger grass · Cica
Effective at1%+ extract · 50%+ leaf water
Skin typesAll — especially sensitive, acne-prone, rosacea
Routine placementToner, serum, and moisturiser layers
Pairs withHyaluronic acid, Niacinamide, Ceramides
Research statusWell-studied — multiple RCTs published
What Is Centella Asiatica?
Centella asiatica is a small creeping plant native to tropical Asia — known in Korean as byeong-pung-cho and globally as gotu kola, tiger grass, or cica. It has been used in Ayurvedic and traditional Chinese medicine for over two thousand years for wound healing and skin conditions.
In Korean skincare it rose from traditional remedy to hero ingredient in the 2010s when cosmetic chemists isolated its most active compounds and demonstrated their efficacy at clinical concentrations. Today it appears in everything from toners to sleeping masks. It is one of the most studied plant-derived cosmetic ingredients in the world.
The Active Compounds That Matter
Madecassoside — the most studied. Anti-inflammatory, antioxidant, and demonstrated to promote collagen synthesis in clinical trials. The compound behind centella’s wound-healing reputation.
Asiaticoside — works alongside madecassoside to stimulate collagen production and reduce inflammation. Also improves skin barrier integrity.
Asiatic acid and madecassic acid — the aglycone forms. More lipid-soluble, penetrate the barrier more readily — particularly relevant for barrier-repair formulations.
Cosmetic chemist note: The ratio and concentration of these four actives determines a product’s effectiveness. Centella listed as the 12th INCI name almost certainly contains insufficient actives for clinical benefit. Look for centella in the first five INCI names, or where the percentage is disclosed (50%+).
What Centella Does for Skin
Anti-inflammatory. Madecassoside inhibits pro-inflammatory cytokines — the signalling molecules driving redness, swelling, and reactive skin. Multiple RCTs show measurable reduction in skin inflammation after 4–8 weeks of consistent use.
Barrier repair. Madecassic acid increases ceramide production — the lipids forming the skin’s protective outer layer. Critical for UK skin compromised by hard water.
Wound healing. Centella accelerates keratinocyte migration — explaining its longstanding use in post-procedure and post-acne skincare.
Collagen synthesis. Both asiaticoside and madecassoside stimulate fibroblast activity — cells responsible for producing collagen and elastin.
Why Centella Matters Particularly for UK Skin
🇬🇧 Hard water damage. London has water hardness of 300–400 mg/L CaCO3 — among the highest in Europe. Calcium ions deposit on the skin after washing, disrupting the acid mantle and stripping ceramides. Centella directly addresses this damage: it restores ceramide production and reduces the inflammation hard water causes.
🇬🇧 Central heating. UK winters drive indoor humidity to 30–35% — lower than many desert environments. The resulting TEWL accelerates barrier damage. Centella’s barrier-repair mechanism makes it particularly effective as a winter ingredient for UK skin.
Who Should Use Centella Asiatica
Use centella if you have redness or rosacea, acne or post-acne hyperpigmentation, sensitive or reactive skin, skin compromised by over-exfoliation, eczema-adjacent dryness, or concerns about fine lines.
Centella works for all skin types. Oily skin benefits from its anti-inflammatory action. Dry skin from its barrier-repair mechanism. Normal skin from its antioxidant and collagen-stimulating properties.
Caution: Approximately 1–3% of people develop contact dermatitis to centella. If you develop increased redness or itching after introducing a centella product, discontinue and patch test.
How to Incorporate Centella into a Korean Routine
Toner layer: High-percentage centella leaf water toners applied immediately post-cleanse provide immediate calming and block mineral deposits before they form.
Serum layer: The most concentrated delivery — cica serums deliver the highest active concentrations for clinical results on redness and barrier damage.
Moisturiser layer: Centella-based moisturisers provide barrier repair and seal underlying layers.
🇬🇧 Hard water tip: Apply centella toner immediately after cleansing — within 30 seconds — before hard water mineral deposits can form and block penetration. This single timing change measurably improves every product applied afterward.
Best Centella Products Available in the UK
Skin1004 · Toner/Ampoule
Madagascar Centella Ampoule (100ml)
100% centella asiatica leaf water base — the purest centella product available in the UK. Apply immediately post-cleanse on damp skin before mineral deposits form. The reference product for hard water UK skin.
Amazon UK →
Dr.Jart+ · Serum
Cicapair Sensitive Skin Face Serum (30ml)
Highest-concentration centella serum widely available in the UK. Korean dermo-cosmetic formulation delivering clinical centella actives. Measurable results on redness and barrier damage within four weeks.
Amazon UK →
COSRX · Moisturiser
Balancium Comfort Ceramide Cream (80g)
50% centella asiatica leaf water as the base — as much a centella product as a ceramide product. Sold by COSRX brand direct on Amazon UK. Most cost-effective centella at the moisturiser step.
Amazon UK →
Above links are Amazon UK affiliate links. Full disclosure policy.
Reading Centella on Ingredient Labels
- Centella Asiatica Extract — concentrated plant extract. Most potent form. Look for it in the first 5 ingredients.
- Centella Asiatica Leaf Water — water distilled from centella leaves. High content when listed early.
- Asiaticoside, Madecassoside, Asiatic Acid, Madecassic Acid — isolated active compounds. Seeing these indicates a more sophisticated formulation.
Red flag: “Cica” in a product name is marketing, not an ingredient. A product can legally call itself a “cica cream” while containing trace amounts. Always check the INCI list — position matters as much as presence.
Frequently Asked Questions
Is centella asiatica safe for all skin types?
Yes for the vast majority. A small number (~1–3%) develop contact dermatitis. Centella is safe during pregnancy at standard cosmetic concentrations.
What is the difference between centella and “cica”?
Cica is marketing shorthand for centella asiatica — derived from the French word for scar. All cica products contain centella in some form, but the term has no regulatory meaning and does not indicate concentration or quality.
Can I use centella with retinol?
Yes — centella and retinol are an excellent pairing. Centella’s anti-inflammatory and barrier-repair mechanisms counteract retinol irritation. Apply centella serum first, wait a few minutes, then apply retinol on top.
How long before centella shows results?
Redness and inflammation: 2–3 weeks. Barrier repair and skin texture: 4–6 weeks. Collagen-related benefits: 8–12 weeks of consistent use.
Which centella product should I start with?
For most UK beginners: the COSRX Balancium Ceramide Cream. It uses 50% centella leaf water as its base, costs under £17, and is sold brand direct on Amazon UK. From there, the Skin1004 Ampoule is the logical next addition.
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