Ascorbyl Tetraisopalmitate
Ascorbyl Tetraisopalmitate is a stable, oil-soluble form of vitamin C used in premium skincare. Unlike pure ascorbic acid, it is gentle, non-irritating and mixes easily with oils and creams. It is a favourite in UK beauty products for brightening and protecting skin without the instability or sting of traditional vitamin C.
How it works in skincare
In cosmetics and skincare, ascorbyl tetraisopalmitate functions as a potent antioxidant and skin-brightening agent. It converts to ascorbic acid once absorbed, helping to inhibit melanin production and support collagen synthesis while remaining stable in both oil-based and emulsion formulas. Its lipophilic nature allows it to penetrate the skin more effectively than water-soluble vitamin C, delivering antioxidant protection against environmental stressors without causing irritation.
Key benefits
- Brightens dull skin and helps fade dark spots
- Provides antioxidant protection against free radicals
- Supports collagen production for firmer-looking skin
- Less irritating than pure vitamin C
- Highly stable in formulations
- Helps improve overall skin radiance
Best for
dull skin, mature skin, sensitive skin, dry skin, uneven skin tone
Where it comes from
Ascorbyl tetraisopalmitate is derived from ascorbic acid (vitamin C) obtained from sources such as citrus fruits and other vitamin-C-rich plants, which is then esterified with isopalmitic acid to create a stable, oil-soluble molecule.