Magnesium Ascorbyl Phosphate
Magnesium Ascorbyl Phosphate is a stable, water-soluble form of vitamin C commonly used in UK skincare formulas. It is gentler than pure ascorbic acid, making it suitable for sensitive skin while still delivering antioxidant protection and brightening effects. Shoppers often find it in serums, moisturisers and masks aimed at dull or tired-looking skin.
How it works in skincare
In cosmetics and skincare, Magnesium Ascorbyl Phosphate functions as a stable derivative of vitamin C that converts to ascorbic acid once absorbed by the skin. It helps inhibit melanin production for a brighter appearance and supports collagen synthesis to improve skin firmness. Because it is less prone to oxidation than pure vitamin C, it remains effective in water-based formulas and is less likely to cause irritation, making it a popular choice in everyday British beauty products.
Key benefits
- Brightens dull skin
- Helps reduce the appearance of dark spots
- Provides antioxidant protection against environmental stressors
- Supports a firmer-looking complexion
- Gentle enough for sensitive skin
- Improves overall skin radiance
Best for
sensitive skin, dull skin, mature skin, uneven skin tone
Where it comes from
Magnesium Ascorbyl Phosphate is produced by combining ascorbic acid (vitamin C) derived from plant sources such as citrus fruits or acerola cherries with magnesium and phosphate groups.
Products with Magnesium Ascorbyl Phosphate
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Magnesium Ascorbyl Phosphate than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.