For your skin
Vitamin E's more potent cousin, better at chasing down free radicals and shielding skin from UV-driven aging. A systematic review concluded it protects against inflammation, UV damage, and pigmentation; pairs naturally with vitamin C.
Want the science? Keep reading ↓Mechanism of action
Unsaturated isoprenoid side-chain vitamin E homolog with 40-60x the lipid-peroxidation-quenching potency of alpha-tocopherol in some models; in fibroblasts upregulates COL1A1/COL3A1 genes and protects against UV-induced inflammation and melanogenesis.
Why we tier this moderate
5 cited papers across 3 countries. The mechanism is well-described and there's at least one controlled trial in the literature, but we tier this Moderate rather than Strong to stay honest about how many specific papers we cite directly.
Cited research
Pang KL, Chin KY, Effects of tocotrienol on aging skin: A systematic review, Frontiers in Pharmacology 2022;13:1006198 — systematic review concludes tocotrienols protect skin from inflammation, UV radiation, and melanin accumulation
Pedrelli VF, Lauriola MM, Pigatto PD. Clinical evaluation of photoprotective effect by a topical antioxidants combination (tocopherols and tocotrienols). Journal of the European Academy of Dermatology and Venereology. 2012 Nov;26(11):1449-1453. — Clinical study in photosensitivity patients; topical tocotrienol-rich formulation raised α-tocotrienol skin levels 80-fold, demonstrating superior photoprotective accumulation vs tocopherol alone.
Makpol S et al., Modulation of collagen synthesis and its gene expression in human skin fibroblasts by tocotrienol-rich fraction, Archives of Medical Science 2011;7(5):889-895 — TRF pretreatment protected fibroblasts from H2O2-induced oxidative stress and upregulated COL I and COL III gene expression
Weber C, Podda M, Rallis M, Thiele JJ, Traber MG, Packer L. Efficacy of topically applied tocopherols and tocotrienols in protection of murine skin from oxidative damage induced by UV-irradiation. Free Radical Biology & Medicine. 1997;22(5):761-769. — Murine UV model showing topical tocotrienols significantly reduced lipid peroxidation and oxidative damage with superior efficacy vs tocopherol.
Traber MG, Podda M, Weber C, Thiele J, Rallis M, Packer L. Diet-derived and topically applied tocotrienols accumulate in skin and protect the tissue against ultraviolet light-induced oxidative stress. Asia Pacific Journal of Clinical Nutrition. 1997 Mar;6(1):63-67. — Showed topical and dietary tocotrienols accumulate in skin at 7- to 30-fold higher concentrations under UV exposure and provide significant photoprotection.
Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.