Head-to-Head Active Comparison

Centella asiatica vs. Glycolic Acid: Which Is Better for Your Skin?

Select two ingredients to evaluate scientific evidence, routine placement, and layering compatibility side-by-side.

Select Ingredient A

Select Ingredient B

Clear comparison

The bottom line

Safe to layer

Choose Centella asiatica If…

Compromised skin
Redness-prone skin
Post-procedure skin
Sensitive skin
Acne-prone skin

IndicativeGentleHydrateAM & PM

Read the Centella asiatica passport

Choose Glycolic Acid If…

rough skin texture
dull skin tone
photoaging and fine lines
hyperkeratosis
hyperpigmentation and dark spots

IndicativeGentleNot yet placedPM preferred

Read the Glycolic Acid passport

Synergy & conflict evaluator

Safe to layer
Conditional layering
Do not stack

Soothes transient redness and reinforces epidermal barrier lipid repair following chemical desquamation. Not yet verified

The record for at least one of these lists the other as a pairing it layers well with. That's a recorded synergy, not a guarantee for every skin -- introduce anything new one at a time.

Overlap

Research in progress — check back soon.

Side by side

Centella asiatica compared with Glycolic Acid
Attribute	Centella asiatica	Glycolic Acid
Scientific evidence	Indicative	Indicative
Gentleness	Gentle	Gentle
Routine phase	Hydrate	Not yet placed
Ideal timing	AM & PM	PM preferred
Application surface	Pat gently onto clean skin until absorbed.	Apply to clean, completely dry skin in the evening. Avoid the immediate delicate eye contour and lip area. Allow to absorb for 2-3 minutes before applying hydrating serums or moisturizers. Always apply a broad-spectrum SPF 30+ sunscreen during the day.
INCI name	Centella Asiatica Extract	Glycolic Acid
Korean name	병풀 (병풀)	Not recorded

Biophysical & clinical mechanism contrast

Mechanism contrast, Centella asiatica compared with Glycolic Acid
Attribute	Centella asiatica	Glycolic Acid
Target skin layer	Research in progress — check back soon.
Solubility profile	Research in progress — check back soon.
Active pH dependency	Research in progress — check back soon.
Primary skin concern match	Redness & sensitivity	Not recorded
Other concerns addressed	Barrier repair	Not recorded

Boundaries & caveats

Boundaries and caveats, Centella asiatica compared with Glycolic Acid
Attribute	Centella asiatica	Glycolic Acid
Direct contraindications	Published case reports describe hepatotoxicity (liver injury, including jaundice and granulomatous hepatitis, with one case recurring on re-exposure) following oral ingestion of Centella asiatica as an herbal remedy or dietary supplement; this concern is specifically tied to oral ingestion, not topical cosmetic use, and no report of topical hepatotoxicity was located [S014]. Separately, no published report of photosensitivity or a phototoxic reaction to topical Centella asiatica extract was located in this research -- an explicit absence of evidence, not a demonstration of safety in sun exposure.	Not recorded
Barrier over-exfoliation risk	Research in progress — check back soon.
Sun sensitivity warning	Research in progress — check back soon.
Pause first	Active allergic contact dermatitis Known sensitivity to Apiaceae family plants Post-procedure skin experiencing active eczema flare-ups: Raw botanical fractions can trigger rare contact sensitization in highly broken barriers.	active eczema severe rosacea highly compromised or damaged skin barrier post-procedure raw skin
Use with caution	Individuals with known plant allergies (Apiaceae family) or diagnosed cosmetic contact dermatitis.	extremely sensitive skin active eczema rosacea compromised or raw skin barrier recent facial waxing or laser treatments
Before you start	Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin.	Low-pH unbuffered formulas can cause stinging, erythema, and transient skin barrier disruption. Increases UV photosensitivity; mandatory daily broad-spectrum SPF 30+ sun protection is required during use.
Boundary	Anti-wrinkle miracle: While Centella stimulates collagen in vitro and improves scar thickness clinically, it cannot replace medical-grade retinoids or injectables for deep wrinkle reversal. Acne curing: Centella calms active inflammation, but it does not possess salicylic acid's pore-clearing (lipophilic) or benzoyl peroxide's direct antibacterial activity against C. acnes.	The rapid stratum corneum thinning and deep dermal collagen remodeling achieved with professional 50% glycolic acid chemical peels cannot be expected from low-dose (2% to 5%) daily wash-off cleansers. The high free-acid bioavailability of unbuffered formulas (pH < 3.0) cannot be assumed for fully neutralized glycolic acid salts (pH > 5.5), as sodium glycolate loses keratolytic activity. The epidermal cell renewal benefits of topical glycolic acid do not substitute for broad-spectrum sunscreen protection, as AHAs increase skin sensitivity to UV radiation.

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Deep-dive Q&A

Centella asiatica

Why is Centella asiatica often called 'Cica' or 'Tiger Grass' in skincare?

**A:** The term 'Cica' is a marketing abbreviation derived from 'Centella asiatica, 병풀'. The historical name 'Tiger Grass' originates from traditional observations in Asia, where wounded tigers were observed rolling in wild Centella asiatica patches to heal their wounds. This botanical folklore has been scientifically validated, as modern research demonstrates that Centella's triterpenoids accelerate cellular repair and wound contraction [S004, S009]. Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin. Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin.

Can I use Centella asiatica if I have extremely sensitive, eczema-prone skin?

**A:** Yes, Centella asiatica, 병풀 is highly recommended for sensitive and eczema-prone skin due to its potent anti-inflammatory and barrier-strengthening properties. However, because raw plant extracts can contain trace botanical impurities that act as weak sensitizers, individuals with severely compromised barriers should perform a patch test on their inner forearm for 3 consecutive days before facial application [S007].

What is the difference between a product with '95% Centella Extract' and '0.2% Madecassoside'?

**A:** This is a common source of confusion in cosmetics. A '95% Centella Extract' usually refers to a bulk raw material where dried Centella is steeped in a solvent (typically water and glycols); the actual active molecule concentration in this extract is often less than 0.1%. Conversely, '0.2% Madecassoside' represents a highly purified, isolated active compound that is standardized and tested at precise therapeutic levels. Purified active markers (like Madecassoside or TECA) are significantly more potent and reliable than bulk crude extracts [S006, S008]. --- Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin. Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin.

What is the biological mechanism and dermatological evidence for Centella Asiatica Extract in skincare?

Centella Asiatica Extract, 병풀 (Centella Asiatica Extract) functions as a Botanical Extract. Botanical extract rich in asiaticoside, madecassoside, and asiatic acid that dampens IL-1beta and TNF-alpha. Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin. Documented as a weak sensitizer; may cause allergic contact dermatitis when applied repeatedly to severely compromised or post-procedure skin.