The South Pacific traditional wound-healing oil (Polynesia, Madagascar). Calophyllum inophyllum kernel pressing; rich in calophyllolide and inophyllin — unique anti-inflammatory and re-epithelialization-active molecules with century-old ethnomedical use and modern in-vitro support. Resurfacing-routine recovery and post-acne scarring are the 2025 use cases; brands like Rituel de Fille, OSEA, and indie Pacific brands lead.
Benefits
documented wound-healing and anti-inflammatory action
supports post-acne and scarring recovery
rich emollient with characteristic green-resin odor
Example uses
scar and post-acne oils
wound-recovery balms
anti-aging facial oil blends
Mechanism of action
Cold-pressed kernel oil from the South Pacific Calophyllum inophyllum tree, with a unique chemical signature among cosmetic oils: the active fraction includes calophyllolide (a 4-substituted coumarin with documented anti-inflammatory, anti-platelet, and wound-healing activity in standardised assays), inophyllin (a unique pyrane derivative), and a broad triterpene and tocopherol load. The fatty-acid backbone (~36% oleic, ~30% linoleic, ~13% palmitic, ~12% stearic) provides barrier-mimetic emolliency, but the small-molecule active fraction is what distinguishes tamanu from generic facial oils — calophyllolide in particular has documented activity at concentrations well below the whole-oil percentages.
Clinical evidence · Moderate
Strong ethnobotanical and Pacific-region clinical tradition; multiple in-vitro and ex-vivo studies on wound-healing, antimicrobial, and anti-inflammatory action; finished-cosmetic RCTs are smaller but consistent on post-acne and scarring endpoints.
Effective concentration range
1–10% in blends (rarely 100% due to strong colour and odour)
Formulation notes
Use 1–10% in blends; rarely used at 100% due to strong scent and color. Cold-pressed virgin grade preserves calophyllolide. Pairs with rosehip, jojoba, and bakuchiol for retinoid-alternative night oils.
Watchouts
Nut-family (Calophyllaceae); patch-test for sensitive users. Strong color and odor influences formulation aesthetics. Comedogenicity ratings are moderate — not ideal for active acne.
Comedogenicity is moderate and meaningful — tamanu's deep green-brown colour and resinous lipid composition produce real follicular-occlusion risk on active-acne and oily skin, despite the wound-healing tradition. The Calophyllaceae family adjacency to St. John's wort prompts theoretical photosensitivity caution (though clinical reports are rare). Wild-harvest pressure in Pacific source islands (Tahiti, Vanuatu, Madagascar) is a real ESG concern as demand has scaled.
Market positioning
Sold as the Pacific traditional wound-healing oil — and the underlying chemistry largely earns the position for post-acne recovery and scar remodelling. The honest qualifier is the comedogenicity profile; active-acne use is contraindicated by experienced formulators despite the marketing parallel.
Comedogenicity
2 / 5
Sensitisation risk
Low
INCI & aliases
Calophyllum Inophyllum Seed Oil
calophyllum inophyllum · foraha oil
Clean beauty perception
Strongly positive within indigenous-botanical clean spectrum.