Vitamin E — listed as tocopherol or tocopheryl acetate on ingredient labels — appears in nearly half of all moisturisers, serums, and body creams. It is so ubiquitous that it can seem unremarkable. But its role in skin health is genuinely important, and understanding how it works helps you use it strategically rather than just accepting it as filler.
Vitamin E as an antioxidant
Tocopherol is a fat-soluble antioxidant, meaning it works in the lipid environment of cell membranes and skin barrier oils rather than in water. Its main job is neutralising free radicals — unstable molecules generated by UV radiation, air pollution, and normal metabolism — before they can damage cell membranes, proteins, and DNA. In the skin specifically, vitamin E is present naturally in sebum and in the lipid layers of the stratum corneum, where it forms a first line of antioxidant defence.
The vitamin C + E synergy
The most important thing to know about vitamin E in skincare is that it does not work alone at its best. After neutralising a free radical, tocopherol itself becomes a weak radical (a tocopheryl radical). Vitamin C (ascorbic acid) regenerates it back to its active antioxidant form. This means the two vitamins are synergistic — C regenerates E, E protects lipids that C cannot reach (because C is water-soluble). Products combining both are more protective than either alone. Adding ferulic acid further stabilises both.
Emollient and barrier-supporting effects
Beyond antioxidant activity, vitamin E is an emollient — it softens and smoothes skin by filling in the spaces between skin cells. It also supports barrier function by reducing transepidermal water loss. This is why it features heavily in dry skin and eczema products. Tocopherol has a slightly richer, more occlusive texture than lighter oils, making it better suited to body butters and night creams than lightweight daytime serums.
What about scars and stretch marks?
Vitamin E has a long popular reputation for reducing scars and stretch marks, often applied directly from a capsule. The clinical evidence does not strongly support this claim. Several randomised controlled trials have found that topical vitamin E does not significantly improve surgical scar appearance, and some studies found it caused contact dermatitis in a subset of patients. For general skin health and antioxidant protection, vitamin E is highly valuable. For scar treatment specifically, other options (silicone gels, niacinamide, retinoids) have better evidence.
Forms to look for
- Tocopherol: The active form. Most bioavailable, but less stable — oxidises faster in open containers.
- Tocopheryl acetate: Stable ester form, requires conversion to tocopherol in skin. Commonly used because it survives formulation better.
- Mixed tocopherols: Natural-source vitamin E containing alpha-, beta-, gamma-, and delta-tocopherol. Broader antioxidant coverage.
- Tocotrienols: A related form of vitamin E with potentially stronger antioxidant activity; less common but emerging in premium formulations.
How to use it
- In a morning antioxidant serum: Look for vitamin C + E + ferulic acid combinations for maximum photoprotection.
- In a night moisturiser: Tocopherol-rich moisturisers support barrier repair overnight.
- Avoid pure vitamin E oil on acne-prone skin: It is highly comedogenic at high concentrations.
- Store vitamin E products away from light and heat — oxidised tocopherol turns orange-brown and may actually generate free radicals.