What is Ascorbyl Glucoside?
Ascorbyl Glucoside is a vitamin C derivative made by attaching a sugar (glucose) to vitamin C. This protects it from breaking down, so it stays stable in a formula for much longer than pure L-ascorbic acid.
It is used in brightening serums, creams and sunscreens for dull skin and dark spots. It is water-soluble and works at a normal skin-friendly pH, so it is usually gentler than L-ascorbic acid. Skin has to convert it into active vitamin C first, which is the reason it is considered milder but also less proven.
Source
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Found in |
Ascorbyl Glucoside (INCI name) |
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Origin |
Made in a lab by joining vitamin C to a sugar |
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Also known as |
Ascorbic acid 2-glucoside, AA2G, vitamin C glucoside |
Top features and benefits
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Stable form of vitamin C |
Gentler than L-ascorbic acid |
Helps brighten dull skin |
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Helps fade the look of dark spots |
Antioxidant protection |
Works at a skin-friendly pH |
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Water-soluble and easy to formulate |
Longer shelf life than pure vitamin C |
Good for sensitive skin types |
How Does It Work?
Skin enzymes can snip the sugar off ascorbyl glucoside, releasing active vitamin C right where it is needed. This slow release is the reason the ingredient is stable in the bottle but still able to act on skin.
Once converted, it behaves like vitamin C. It helps neutralise free radicals, which are unstable molecules from sun and pollution that damage skin. It also slows down the enzyme that makes melanin, so dark spots can look lighter over time.
The catch is that conversion is not perfect, so how much vitamin C actually reaches the skin is hard to measure. Small studies have shown brightening effects, but fewer high-quality trials exist than for L-ascorbic acid. It is a good choice for sensitive skin or for people who dislike the sting of pure vitamin C, as long as expectations stay realistic.