: For high-grade chemical needs (96% purity or higher), specialized distributors like Thermo Fisher Scientific and Sigma-Aldrich offer DHA in milligram quantities. These products are typically designated for research use only.
: In the context of topical serums, the presence of DHA (indicated by a change to orange or brown color) usually signifies that the product has oxidized and lost its antioxidant efficacy. In these cases, it may even act as a pro-oxidant, potentially irritating the skin. dehydroascorbic acid buy
Dehydroascorbic acid (DHA) is the oxidized form of Vitamin C (ascorbic acid). While it is often viewed as a sign of degradation in consumer skincare products, it serves as a critical research compound due to its unique ability to cross the blood-brain barrier. Sourcing Dehydroascorbic Acid : For high-grade chemical needs (96% purity or
: Unlike standard Vitamin C, DHA is actively transported into cells via glucose transporters (GLUTs). Once inside, the body typically reduces it back into active ascorbic acid. In these cases, it may even act as
Because DHA is highly unstable in liquid form, it is primarily sold as a high-purity powder for laboratory and manufacturing use rather than as a standard retail supplement.