Science
Mechanism of Action
This ingredient functions as a pro-drug, effectively delivering d-alpha-tocopherol, a potent free radical scavenger, directly to skin cells. By halting the peroxidation of polyunsaturated fatty acids, it maintains cell membrane stability and integrity, preventing cellular damage that contributes to premature aging. Its unique amphipathic nature allows it to form micelles, which markedly improves its solubility and absorption within the skin compared to conventional vitamin E forms. Beyond its antioxidant action, tocophersolan also supports the skin's natural barrier function, reduces moisture loss, and exhibits anti-inflammatory effects.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 A study using zebrafish larvae demonstrated that tocophersolan, at a concentration of 1 µM, effectively reversed locomotor deficits induced by benzo[a]pyrene, indicating its protective capabilities against environmental stressors.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Tocophersolan exhibits high stability against common stressors such as oxygen, heat, light, and oxidizing agents, making it robust for formulation. It is, however, unstable in alkaline environments. Its melting point is approximately 34-38°C, with handling recommended at 60°C when melted. It maintains stability through multiple heat and cool cycles and can form gels at concentrations between 20% and 90% in water.
Conflicts
- Alkali
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed its safety for use in cosmetic formulations. It is registered as an Inactive Ingredient by the FDA, and its originator, Eastman, has self-affirmed Generally Recognized As Safe (GRAS) status. The European Medicines Agency (EMA) also approves it for oral use in vitamin E deficiency. Animal studies reported no signs of toxicity at doses up to 2 g/kg/day for 5 days and no skin sensitization in guinea pigs.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Tocophersolan is a valuable, highly stable, and water-soluble vitamin E derivative offering potent antioxidant protection, deep moisturization, and barrier support suitable for all skin types.
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References
Sources