Centella Asiatica (CICA) for Wound Healing and Anti-Inflammatory Support — Skin & Hair
Centella asiatica is a medicinal herb containing bioactive triterpenes (asiaticoside, madecassoside, asiatic acid, madecassic acid) that stimulate TGF-beta signaling and type I collagen synthesis through the SMAD pathway for wound healing and scar prevention.
Overview
Centella asiatica (Gotu Kola, Tiger Grass, CICA) is a perennial herbaceous plant used in Ayurvedic and traditional Chinese medicine for centuries, now supported by over 110 peer-reviewed publications documenting its wound healing, anti-inflammatory, and collagen-stimulating properties. Its primary bioactive compounds are pentacyclic triterpenes: asiaticoside and madecassoside (glycosides) and their aglycones asiatic acid and madecassic acid. The standardized titrated extract of Centella asiatica (TECA) is the most clinically studied formulation. These triterpenes stimulate type I and III collagen synthesis via activation of TGF-beta/SMAD2/3 signaling pathway in dermal fibroblasts, enhance GAG synthesis for wound matrix formation, and inhibit the inflammatory cascade through suppression of NF-kB and iNOS. Clinical trials demonstrate efficacy in accelerating wound closure, reducing hypertrophic scar formation, improving striae (stretch marks), and managing inflammatory dermatoses. The compound has an excellent safety profile with centuries of traditional use and modern clinical validation.
Indications
- Wound healing acceleration and surgical wound care
- Hypertrophic scar prevention and management
- Post-procedural skin recovery (laser, microneedling, peels)
- Striae (stretch marks) prevention and improvement
- Inflammatory dermatoses (eczema, psoriasis adjunct)
- Sensitive and reactive skin conditions
- Burns (first and second degree) management
- Chronic wound and ulcer support
Mechanism of Action
Asiaticoside and madecassoside activate TGF-beta1 signaling, triggering SMAD2/3 phosphorylation and nuclear translocation to upregulate type I and III collagen gene transcription in dermal fibroblasts
Dosing
| Compound | Dose | Frequency | Notes |
|---|---|---|---|
| Centella Asiatica Extract (TECA) | 1-5% standardized extract | Twice daily | TECA standardized to asiaticoside 40%, asiatic acid 30%, madecassic acid 30% |
| Centella Asiatica CICA Cream | 2-5% extract in soothing base | Three times daily for 7-14 days | Begin 24-48 hours post-procedure; continue until re-epithelialization complete |
| TECA + Silicone | 1-2% TECA in silicone gel vehicle | Twice daily for 3-6 months | Begin after wound closure for optimal scar prevention; silicone provides occlusion |
Evidence Grade
GRADE B
Safety & Contraindications
- Excellent safety profile with centuries of traditional use and modern clinical validation
- Rare allergic contact dermatitis (estimated <1%); patch test in atopic individuals
- TECA standardized extract is the best-validated form for clinical use
- No known drug interactions with topical formulations
- Safe during pregnancy for topical use based on traditional use data (oral supplements less studied)
- High oral doses may cause hepatotoxicity in rare cases; topical use does not carry this risk