Ascorbyl Glucoside Very Stable Vitamin C – AA2G


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Ascorbyl Glucoside Stable Vitamin C – AA2G

Lightens skin & Suppresses melanin synthesis: 

When AA-2G is converted to vitamin C and enters skin cells, it significantly reduces the production of melanin by inhibiting tyrosinase activity. This results in a reduction of dopaquinone, an  intermediate of melanin synthesis. Additionally it converts existing dopaquinone to dopa. When AA-2G is converted to vitamin C and enters skin cells, it can significantly lighten existing black
melanin by a reduction reaction.

Another application of AA-2G in cosmetics is control of skin pigmentation. Due to its antioxidant properties, this compound reduces the rate of melanin synthesis, thus preventing skin darkening after UV exposure.




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Ascorbyl Glucoside Stable Vitamin C – AA2G

Ascorbyl Glucoside – AA2G is a very stable natural vitamin C, containing glucose stable ingredients, with the formulation stability of excellence, will essentially inhibitory discoloration and degradation and retains all the biological activity. AA2G not only for whitening, but also to brighten the skin, which plays a role in protecting the skin in sunscreen products.

It has been known for many years that the use of vitamin C (ascorbic acid) can result in brighter, healthier, younger looking skin. Science has discovered that this lightening effect is related to the ability of vitamin C to suppress melanin synthesis and reduce existing melanin. The challenge with using vitamin C in health and beauty formulations is the fact that it can easily lose its biologic activity because of heat, oxidation, and reactions with metal ions and other common cosmetic ingredients. This causes discoloration in the cosmetic formulations and dramatically decreases the ability of vitamin C to provide the benefits of younger looking healthier skin. To overcome these problems, Hayashibara partnered with a renowned cosmetic chemist to develop a new substance consisting vitamin C and glucose using a novel enzyme manufacturing process.
This has resulted in a unique stabilized vitamin C called L-Ascorbic Acid 2-Glucoside (AA-2G). This vitamin C derivative, which is now being sold under the trade name AA2G, has superior formulation stability that essentially resists discoloration and degradation, while retaining all the biologic activity that provides lightening, UV damage and anti-aging properties.

AA2G is highly stable in solution even at high temperatures, low pH and in the presence of metal ions. This results in AA2G helping to maintain product quality.

Mechanism of action:

An enzyme releases vitamin C from AA-2G at the cellular surface and provides benefits over a sustained period of time. AA-2G is hydrolyzed by ?-glucosidase, an enzyme present in the membrane of skin cells. This process releases vitamin C in its active form. When vitamin C enters cells it results in significant and well-documented biological responses. AA-2G is hydrolyzed over a prolonged period, resulting in consistent and sustained beneficial physiological effect on the skin.

CAS Number: 129499-78-1

Chemical Formula: C12H18O11

Molecular Weight: 338.26

Appearance: White to off-white powder

Purity (HPLC): min 99.5%

Loss on drying: max 0.5%

Solubility: Soluble in water

 Use level: 1-3% but up to 10% (for skin-lightening effect). 
Applications: For external use only. All kinds of cosmetics requiring emulsification as lotions, creams, gels, hair conditioners.


This information on regulatory clearances is believed to be accurate and is given in good faith as a guide to the global use of our products. No representation or warranty as to its completeness or accuracy is made. Users are responsible for determining the suitability of these products for their own particular purpose.


At pure usage levels it can cause irritation to the skin.

When blending always take the following precautions:

Use gloves (disposable is ideal)

Take care when handling hot oils

Wear eye protection

Work in a well-ventilated room

Keep ingredients and hot oils away from children

If ingested, seek immediate medical advice

If contact made with eyes, rinse immediately with clean warm water and seek medical advice if in any doubt.


In addition to our precautions and general safety information, we always recommend keeping a first aid kit nearby. You are working with hot water and oils, accidents can happen, so always be prepared!

Disclaimer: Before purchasing please note that all information contained within Cocojojo store and this page are for reference purposes only and are not intended to substitute the advice given by a pharmacist, physician, or any other licensed health-care professional. Our products have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any health condition or disease.  All our products are for external use only.  Unless your Medical Doctor allow you to use this product it should not be used by anyone who is pregnant or under the care of a medical practitioner.   The information on this page is has been compiled from published sources and is provided only as a guide. Although every effort has been taken to ensure that information published on this page is correct and up to date, Cocojojo LLC cannot guarantee the accuracy of all information presented, and accepts no liability in respect of any omission or error.  The customer should always satisfy themselves as to the ultimate suitability of a product for an intended application. Cocojojo LLC accepts no liability in the unlikely event of an adverse reaction occurring when using one of its products. All facts, details & recommendations on our page are provided for information purposes only and are not intended to diagnose, prescribe or replace the advice of professionals.  Our products are not a medication, and we can only make recommendation for suitability of our products in certain conditions. Any recommendations accepted by a purchaser are accepted entirely at the purchasers’ risk. By purchasing our products you accept responsibility to check with a professional before using any products that may interfere with drugs or medical conditions. By purchasing our products you recognize and accept the fact that that some natural ingredients, essential oils in particular, may still cause sensitivity in susceptible individuals and that Cocojojo LLC will not be held responsible for such occurrences. We encourage those with sensitive skin to make a patch test on the skin for possible reactions. Cocojojo LLC accepts no responsibility for incorrect use of information or products


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Ascorbyl Glucoside Very Stable Vitamin C - AA2G


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