Ingredient guide
Ascorbic Acid 2-Glucoside (AA2G)
ascorbic acid 2-glucoside
In short
Ascorbic Acid 2-Glucoside (AA2G) is a stable vitamin C derivative that slowly converts to active vitamin C on skin. It supports a brighter look and smoother texture.
Reviewed against published evidence · editorially independent · no brand pays to be featured
What it is
Stable glucose-bound L-ascorbic acid derivative; alpha-glucosidase cleaves the sugar in vivo releasing free vitamin C.
What the evidence says
ModerateVitamin C (topical)applied to skin
Studied in relation to brighter, more even-looking skin and collagen support over time. Formulation and freshness matter.
See 2 sources
Double-blind half-face trial: vitamin C side showed significant photoaging-score improvement at 12 weeks (cheeks P=0.006).
photoaging score
Dermatologic Surgery, 2002Review: support for topical vitamin C in collagen synthesis, photoprotection (adjunct, not a sunscreen) and pigmentation.
collagen synthesis, photoprotection, pigmentation
Dermatologic Surgery, 2005
When to use it
Mornings, under sunscreen. Its antioxidant role suits daytime.
Where it sits
A morning serum step. After cleansing, under moisturiser and sunscreen.
- Cleanse
- Tone
- Ascorbic Acid 2-Glucoside
- Moisturise
- SPF
Also found as
Related
Where to find it
Options across the range, not a ranking. Run one through Lens and MIRU will tell you if it fits you.
Hada Labo Shirojyun Premium Whitening Lotion
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Common questions
What does AA2G do for skin?
It helps brighten uneven tone and supports a smoother, more refined surface while providing antioxidant benefits.
Is AA2G suitable for sensitive skin?
Yes, its stability and gradual release make it gentler than pure ascorbic acid, which many sensitive users appreciate.
How is AA2G used in skincare?
It’s included in serums and lotions as a daily brightening step. You use it like any vitamin C product.
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Personal guidance, not medical advice.