ASCORBIC ACID-2 GLUCOSIDE
Mechanism of Action of Ascorbic Acid-2 Glucoside Ascorbic acid is primarily known for its antioxidant ability to scavenge and neutralize superoxide radicals.36 Ascorbic acid interferes with melanin synthesis by chemically reducing oxidized dopaquinone back to DOPA, reversing the melanogenic process.37 Unfortunately, native ascorbic acid is highly unstable and oxidizes and decomposes in aqueous solutions. A more stable form of ascorbic acid is ascorbic acid glucoside, also known as 2-O-alpha-D- glucopyranosyl-L-ascorbic acid (AA-2G). AA-2G is hydrolyzed into ascorbic acid by skin cells.38
Efficacy of Ascorbic Acid-2 Glucoside
Preclinical Studies Using Ascorbic Acid-2 Glucoside
Native ascorbic acid has been shown to have many properties that benefit the skin, including antioxidant, anti-inflammatory, and sunscreening properties. Ascorbic acid 2-glucoside shares many of these properties. Investigators evaluated the ability of L-ascorbic acid glucoside, also known as 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G), to inhibit damage induced by UVB exposure to human keratinocytes derived from squamous cell carcinoma. Study results demonstrated that AA-2G is protective effect against UVB-induced damage in human epithelial cells. AA-2G also has demonstrated antioxidant properties, and has also been shown to promote collagen synthesis in human skin fibroblasts.
Conclusions Researchers have determined the chemical changes that occur at every step of the melanogenic pathway, both in healthy individuals and in those with pigmentation disorders. The data derived from these studies drive the scientific determination of agents that can interfere with specific points in that pathway. By using a product that combines these agents, each of which has different mechanisms of action, to disrupt hyperpigmentation at multiple points, clinicians can help their patients with melasma and post-inflammatory hyperpigmentation.
ASCORBIC ACID-2 GLUCOSIDE Mechanism of Action of Ascorbic Acid-2 Glucoside Ascorbic acid is primarily known for its antioxidant ability to scavenge and neutralize superoxide radicals.36 Ascorbic acid interferes with melanin synthesis by chemically reducing oxidized dopaquinone back to DOPA, reversing the melanogenic process.37 Unfortunately, native ascorbic acid is highly unstable and oxidizes and decomposes in aqueous solutions. A more stable form of ascorbic acid is ascorbic acid glucoside, also known as 2-O-alpha-D- glucopyranosyl-L-ascorbic acid (AA-2G). AA-2G is hydrolyzed into ascorbic acid by skin cells.38 Efficacy of Ascorbic Acid-2 Glucoside Preclinical Studies Using Ascorbic Acid-2 Glucoside Native ascorbic acid has been shown to have many properties that benefit the skin, including antioxidant, anti-inflammatory, and sunscreening properties. Ascorbic acid 2-glucoside shares many of these properties. Investigators evaluated the ability of L-ascorbic acid glucoside, also known as 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G), to inhibit damage induced by UVB exposure to human keratinocytes derived from squamous cell carcinoma. Study results demonstrated that AA-2G is protective effect against UVB-induced damage in human epithelial cells. AA-2G also has demonstrated antioxidant properties, and has also been shown to promote collagen synthesis in human skin fibroblasts.Conclusions Researchers have determined the chemical changes that occur at every step of the melanogenic pathway, both in healthy individuals and in those with pigmentation disorders. The data derived from these studies drive the scientific determination of agents that can interfere with specific points in that pathway. By using a product that combines these agents, each of which has different mechanisms of action, to disrupt hyperpigmentation at multiple points, clinicians can help their patients with melasma and post-inflammatory hyperpigmentation.
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