L-Ascorbic Acid
L-Ascorbic Acid is the pure, active form of Vitamin C, widely used in skincare for its powerful antioxidant properties and skin-brightening effects. It plays a critical role in protecting the skin from environmental damage, supporting collagen production, and improving overall skin tone and texture.
As one of the most researched and effective forms of Vitamin C, L-Ascorbic Acid is known for its ability to neutralise free radicals, reduce hyperpigmentation, and promote a more radiant, youthful appearance. It is commonly found in serums, creams, and treatments targeting dullness, uneven skin tone, and visible signs of aging.
Because it is water-soluble and highly active, L-Ascorbic Acid is most effective in well-formulated, stabilised products, often with a pH below 3.5.
❓What It Does in Skincare
- Neutralises free radicals caused by UV exposure, pollution, and stress, helping to protect skin cells from oxidative damage.
- Brightens the skin by reducing the appearance of dark spots, sun damage, and uneven pigmentation.
- Stimulates collagen synthesis, supporting skin firmness and reducing fine lines and wrinkles.
- Improves overall skin tone, clarity, and radiance.
- Enhances the effectiveness of sunscreen when used underneath SPF, offering added protection against UV damage.
- Delivers visible results with consistent daily use, especially in concentrations between 10% and 20%.
🧬Safety & Toxicology
- Generally recognised as safe and effective for topical use in cosmetic concentrations.
- May cause mild irritation or stinging, particularly in sensitive or compromised skin, due to its low pH and acidic nature.
- Oxidises easily when exposed to air, light, or heat, which can reduce effectiveness and potentially cause irritation — products should be stored in opaque, airtight containers.
- Best used in the morning under sunscreen for antioxidant protection, but can also be used at night.
- Non-toxic and non-sensitising in properly formulated skincare products.
- No known systemic risks with topical use; not suitable for ingestion in cosmetic form.