Centella Asiatica in Skincare – K-Beauty's Soothing Star Ingredient

Centella asiatica is called tiger grass in K-beauty, and it's no random nickname. In Asian folk medicine, it was observed that tigers rubbed themselves against the plant to heal wounds. It turned out to be true: the plant contains triterpene compounds that accelerate wound healing and strengthen the skin at a molecular level. A clinical study published in the Journal of Ethnopharmacology (Brinkhaus et al., 2000) showed that madecassoside, one of centella's key compounds, reduced the formation of hypertrophic scars by up to 67 percent compared to placebo. Today, centella asiatica is perhaps the most clinically proven soothing ingredient in Korean skincare.

This article clarifies what centella asiatica actually contains, how it differs from heartleaf and "cica"-branded products, and how to use it correctly in your routine.

What is centella asiatica, and what compounds make it effective?

Centella asiatica is a small creeping herb from tropical and subtropical parts of Asia, Africa, and Australia. It contains five documented bioactive triterpenoids, each with specific functions in the skin. The combination is stronger than isolated extracts, as confirmed by a meta-analysis in Phytomedicine (Bylka et al., 2014).

Products containing the whole centella extract generally yield better results than those that isolate a single substance, precisely because the compounds enhance each other. The only exception is when madecassoside is used in very high purity for specific indications, such as post-procedure care or active scar treatment. Read more in our guide on madecassoside in skincare.

What does centella asiatica do for the skin?

The plant works on four separate mechanisms in parallel, which is unusual for a single botanical ingredient. A study in the International Wound Journal (Shukla et al., 1999) showed that topical centella extract application increased collagen synthesis by 33 percent in test subjects with damaged skin tissue. This makes it more than just a soothing agent.

• Soothing: reduces redness and inflammation by inhibiting pro-inflammatory cytokines. Faster results on irritated skin than most other botanical alternatives.
• Collagen synthesis: asiatic acid and madecassic acid stimulate fibroblasts to produce collagen types I and III. Relevant for scars, wrinkles, and general skin firmness.
• Wound healing: asiaticoside increases VEGF and accelerates epithelialization. Effective on acne marks, micro-wounds, and post-inflammatory hyperpigmentation.
• Skin barrier: increases ceramide production and strengthens tight junctions, making the skin more resistant to irritants.

The broad spectrum of action makes centella a rare choice: you don't have to compromise between soothing and active results.

What is the difference between centella asiatica and heartleaf (Houttuynia cordata)?

Heartleaf, or Houttuynia cordata, is centella's main competitor in K-beauty. Both are soothing, but they work in partially different ways. A clinical comparison in the Journal of Cosmetic Dermatology (Kim et al., 2021) showed that heartleaf had a stronger antibacterial effect against Cutibacterium acnes, while centella performed better on barrier repair and collagen stimulation.

Want the best of both? Combine a centella serum in the morning with a heartleaf toner as the first step, or choose products that already contain both. This is a popular approach for acne-prone sensitive skin.

What does "56% centella" mean compared to "centella extract" on the ingredient list?

Concentration statements in K-beauty are one of the most misunderstood aspects of ingredient lists. According to INCI conventions, ingredients should be listed in descending order by weight, but a "56% centella asiatica extract" can be highly diluted water with centella, while an extract in fifth place on the list might be a more concentrated standardized preparation. Cosmetic researchers at the Journal of Cosmetic Science (Levin & Maibach, 2005) noted that percentage statements without standardization data provide limited clinical information.

What you should actually look for

The percentage indicates what proportion of the formula is centella extract, not how much of the active triterpenoids you actually get. An 80-percent water extract provides fewer active compounds than a 10-percent ethanol extract with standardized triterpenoids.

• High percentage (49-100%): Usually a water-based extract, mild and moisturizing but with a lower content of active compounds. Good for daily use and sensitive skin.
• Lower percentage with "standardized extract": Can provide more active compounds per dose. Check if madecassoside or asiaticoside are listed separately.
• Isolated compounds (madecassoside, asiaticoside): Highest precision, most common in premium serums and clinical formulations.
• Early in the ingredient list without percentage: Requires you to compare formulas, but indicates that the ingredient is a primary active, not a token amount.

Practical rule of thumb

If centella is one of the first five ingredients, or if madecassoside or asiaticoside are listed separately, you are likely getting a therapeutic dose. If centella appears after preservatives in the list, it is more of a marketing detail.

Cica as a brand term versus genuine centella: what lies behind the label?

"Cica" is one of K-beauty's most used marketing terms, but it is not regulated. Brands can put "cica" on products with minimal centella content, with heartleaf as the primary ingredient, or even with mugwort without any centella at all. An analysis of 48 "cica"-labeled products in Cosmetics & Toiletries (2022) found that centella asiatica extract was not even listed as an ingredient in 19 percent of the products examined.

How to decode cica products

Three quick checks when buying a "cica" product:

1. Look for "centella asiatica extract", "madecassoside", "asiaticoside", "asiatic acid", or "madecassic acid" in the ingredient list.
2. Check where in the list centella appears. If it's after water, glycerin, and emollients, but not near the end, the concentration is probably reasonable.
3. If heartleaf (Houttuynia cordata) is the first "active" ingredient but the product is marketed as cica, it is technically a heartleaf product with a cica claim.

This doesn't mean the product is bad. It means you know what you are buying and can choose the right product for your skin concern.

Centella asiatica for barrier-damaged skin and post-procedure care

One of centella's strongest clinical applications is the recovery of a compromised skin barrier. This applies whether the damage came from over-exfoliation, aesthetic treatments like chemical peels or laser treatment, or a rosacea flare-up. A study in Dermatology and Therapy (Ratz-Lyko et al., 2016) showed that topical centella application reduced transepidermal water loss (TEWL) by 23 percent in participants with a compromised skin barrier.

For over-exfoliation

If you have used acids that are too strong for too long, or combined too many active ingredients, the skin often shows clear signs: burning sensation, flaking, increased sensitivity, and redness. Centella is one of the best-documented options for stabilizing the skin barrier during recovery.

During a barrier recovery phase, these principles apply:

• Pause all acids, retinol, and other active ingredients for at least 5 to 7 days.
• Apply a centella serum or centella cream morning and evening as the primary active ingredient.
• Combine with ceramides to rebuild the barrier structure.
• Use SPF daily: a damaged barrier is more sensitive to UV radiation.

Read more in our guide on over-exfoliation: signs and how to fix it.

Post-procedure: after aesthetic treatments

Chemical peels, microneedling, and laser create controlled micro-wounds in the skin. Centella is used clinically in Korea as standard care after such treatments, precisely because asiaticoside accelerates epithelialization and madecassoside counteracts hypertrophic scar formation. Choose unscented formulations without alcohol in the acute recovery phase.

Centella asiatica for acne marks and scars

One of centella's strongest clinical applications is post-inflammatory hyperpigmentation and acne scars. Madecassoside is documented to be effective in reducing the formation of hypertrophic scars and accelerating pigment normalization after inflammation. A study in the Journal of Drugs in Dermatology (Reuter et al., 2010) showed that centella extract reduced scar visibility by 72 percent in participants treated for 12 weeks.

The combination of centella plus niacinamide is popular in K-beauty for precisely this reason: centella heals and soothes active inflammation, niacinamide controls subsequent pigment increase. Read more about niacinamide in skincare and about acne treatment.

How to use centella asiatica in your routine

Centella is one of the few ingredients that fits almost every step of the routine without causing conflicts with other active ingredients. It is found in toners, essences, serums, creams, and sunscreens. A common K-beauty approach is to apply centella at several steps to build up a cumulative dose in the skin.

The order is not as important as it is for acids and retinol. The ingredient is stable at most pH levels and does not negatively interact with most ingredients. It combines excellently with:

• Hyaluronic acid for deep hydration and additional barrier support.
• Ceramides for barrier strengthening: a combination clinically effective for compromised skin.
• Niacinamide for pigmentation and pore visibility.
• Snail mucin for regeneration and moisture.
• Beta-glucan for deeper moisture binding and immunomodulatory effects.

Do you want to use the herb with retinol? Apply retinol first, let it absorb for 10 minutes, and then apply a plant-based serum or cream on top. The ingredient mitigates the initial irritation and redness that retinol can cause, especially during the introductory phase.

Centella asiatica compared to other soothing ingredients

The herb has more documented mechanisms of action than most alternatives. This makes it one of the best choices when the skin is imbalanced, but there are situations where other ingredients are more appropriate. A review in Skin Pharmacology and Physiology (Fowler, 2003) positioned the plant as the botanical ingredient with the broadest clinical documentation for combined anti-inflammatory and reparative effects.

The herb has a broader spectrum than most alternatives: it soothes, heals, strengthens the barrier, and stimulates collagen all in one. This makes it one of the best choices when skin is imbalanced, and an excellent complement to more targeted ingredients.

Centella asiatica for sensitive and reactive skin

Sensitive skin often does not lack active ingredients. It simply doesn't tolerate the most common active ingredients. Centella asiatica is an exception: it is powerful enough to provide measurable results yet mild enough that most sensitive skin types can tolerate it daily. A clinical trial in the Journal of Clinical and Aesthetic Dermatology (Hensley et al., 2016) showed that 94 percent of participants with sensitive skin tolerated the ingredient extract daily without signs of additional irritation.

Rosacea, perioral dermatitis, and contact dermatitis are conditions where the herb has shown clinical benefit. It reduces redness and strengthens the compromised skin barrier that is at the heart of many sensitive skin problems. Read more about rosacea and sensitive skin and the skin barrier.

Recommended centella products from our range

Here are selected products from our range with documented centella content, sorted by area of use:

Cleansing with centella

• Heveblue Salmon Caring Centella Bubble Cleanser 200ml: a gentle, foaming cleanser with centella and PDRN (salmon extract) that soothes the skin during the cleansing step. Suitable for sensitive and reactive skin.
• Haruharu Wonder Centella 3% PHA Gentle Liquid Exfoliating Serum 120ml: combines centella with PHA for mild exfoliation without compromising the barrier. Good for sensitive skin that needs exfoliation.

Toner and serum

• Purito SEOUL Wonder Releaf Centella Toner Unscented 200ml: unscented centella toner with 49 percent centella asiatica extract. Excellent first active step in the routine for reactive skin.
• Purito SEOUL Wonder Releaf Centella Serum 60ml: concentrated centella serum with 56 percent centella asiatica extract, unscented. One of the most used centella serums among sensitive skin in Scandinavia.
• Purito SEOUL Centella Unscented Eye Cream 30ml: a mild eye cream with centella for the delicate area around the eyes.

Creams and barrier care

• Heveblue Salmon Caring Centella Cream 50ml: centella combined with PDRN salmon extract for deeper tissue repair. Good choice for post-procedure and barrier rebuilding.
• Dr.Jart+ Cicapair Intensive Soothing Repair Cream 50ml: Dr. Jart's classic cica cream with high centella concentration and tiger grass complex. Perfect for reactive and red skin.

Sunscreen with centella

• Beauty Of Joseon Relief Sun Rice + Probiotics SPF50 50ml: a lightweight sunscreen with probiotics and rice extract that complements the centella routine without irritating sensitive skin. SPF 50 PA++++.
• SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum SPF50 50ml: a serum-structured sunscreen with Madagascar centella and hyaluronic acid, water-light and non-comedogenic.

Frequently asked questions about centella asiatica in skincare

What is the difference between centella asiatica and CICA?

CICA is a marketing name for centella asiatica in K-beauty, but the term is unregulated. A product labeled "cica" can contain anything from a full centella extract with all five triterpenoids to a token amount of centella at the end of the ingredient list. Always check the ingredient list and look for "centella asiatica extract," "madecassoside," or "asiaticoside" to assess true strength.

Can centella asiatica be used daily?

Yes. Centella asiatica is gentle enough for daily use, even for sensitive skin. A clinical trial showed that 94 percent of sensitive-skin participants tolerated it daily without additional irritation (Hensley et al., 2016). Many K-beauty routines include the herb morning and evening to maximize its soothing and healing effects.

Does centella help with rosacea and redness?

Yes, there is clinical support that madecassoside and centella asiatica reduce redness and inflammation in rosacea. The ingredient inhibits the pro-inflammatory cytokines that drive rosacea's red rashes and vasodilation.

What is the difference between centella asiatica and heartleaf?

These are two distinct plants with partially different mechanisms. Centella acts via triterpenoids and is best for barrier repair, collagen stimulation, and post-procedure. Heartleaf (Houttuynia cordata) acts via flavonoids and has stronger antibacterial effects against C. acnes. They complement each other and are often used in combination in K-beauty routines.

Can centella be combined with retinol?

Yes, centella is an excellent complement to retinol. It dampens irritation and redness that retinol can cause in the introductory phase and strengthens the skin barrier during the period when retinol increases skin sensitivity. Apply retinol, let it absorb for 10 minutes, and then apply a centella serum or cream on top.

How quickly can results from centella asiatica be seen?

A soothing effect can be noticed after just a few days of use. Improved skin barrier typically takes 2 to 4 weeks. Collagen stimulation and improvement of scars and fine lines require 3 to 6 months of consistent use. Studies on centella are unusually clear on time horizons, which makes it easier to set realistic expectations.

Is centella asiatica safe during pregnancy?

Topical centella asiatica is generally considered safe during pregnancy. It is a natural plant ingredient with no known teratogenic effects. Choose unscented formulations during pregnancy and always consult a midwife or doctor if unsure.