L-Ascorbic Acid (Vitamin C)
L-Ascorbic Acid, commonly known as Vitamin C, is one of the most researched and effective skincare ingredients. This pure, water-soluble form of vitamin C is a powerful antioxidant that helps brighten skin and protect against environmental damage. It is a staple in many UK serums, creams and masks for those seeking a more radiant, even-toned complexion.
How it works in skincare
In cosmetics and skincare, L-Ascorbic Acid functions as a potent antioxidant that neutralises free radicals generated by UV exposure and pollution. It helps inhibit melanin production to fade the appearance of dark spots and supports natural collagen synthesis, resulting in firmer-looking skin over time. Being highly unstable when exposed to light, air or heat, it is often formulated at low pH in serums with stabilising ingredients to ensure it remains effective when applied to the skin.
Key benefits
- Brightens dull skin for a more radiant appearance
- Helps reduce the look of dark spots and hyperpigmentation
- Visibly improves skin firmness and elasticity
- Protects against environmental stressors such as pollution
- Helps even skin tone and refine texture
- Enhances the effectiveness of sunscreen when used together
Best for
dull skin, mature skin, uneven skin tone, sun-damaged skin, oily skin, combination skin
Where it comes from
L-Ascorbic Acid is naturally found in a wide variety of fruits and vegetables, most abundantly in citrus fruits such as oranges and lemons, as well as in rose hips, blackcurrants and acerola cherries.