High-purity 3-O-Ethyl Ascorbic Acid 12 stable, non-irritating vitamin C derivative for advanced brightening formulations

Vitamin C ethyl ether is a very useful derivative of vitamin C. It is not only chemically very stable and remains colorless as a vitamin C derivative, but also is a lipophilic and hydrophilic amphiphilic substance, which greatly expands its application range in chemistry, especially in daily chemical applications. 3-O-ethyl ascorbic acid ether can easily penetrate through the stratum corneum and enter the dermis. After entering the body, it is very easy to be decomposed by biological enzymes in the body to exert the biological efficacy of vitamin C. 3-O-ethyl ascorbic acid ether is also called vitamin C ethyl ether. Vitamin C, due to its structure having four hydroxyl groups, cannot be directly absorbed by the skin and is prone to oxidation and discoloration, which limits its application as a whitening agent in cosmetics. After 3-hydroxy groups are silylated, the vitamin C ethyl ether obtained by Chemicalbook is a colorless vitamin C derivative that does not affect its biological activity, thus filling the market gap of similar products. Studies have shown that vitamin C ethyl ether is easily decomposed by enzymes in the skin to exert the effect of vitamin C.

• 1.The enediol group in the 3-O-Ethyl Ascorbic Acid molecule can efficiently chelate Cu²⁺ (copper ions) at the active center of tyrosinase, thereby competitively blocking the process by which this enzyme converts tyrosine into dopaquinone. This mechanism directly inhibits melanin production at its source, and due to its stable ethylated structure, it does not lose its chelating efficiency like the prototype VC when oxidized and degraded in the formulation.
  2.In vitro and clinical studies have shown that at a 2% addition level, 3-O-Ethyl Ascorbic Acid can significantly reduce the Melanin Index (MI). Its small molecule ethyl structure endows it with superior penetration ability into the stratum corneum, and after entering the deep layers of the epidermis, it slowly releases active ascorbic acid for sustained and uniform skin brightening. It has a clear effect of reducing and shrinking the area of existing melasma, sunspots, and acne marks, and its whitening effect is superior to that of ascorbic acid glucoside (AA-2G) at the same concentration.
  3.Ultraviolet radiation induces the production of inflammatory factors such as PGE2, IL-6, and TNF-α in the skin. 3-O-Ethyl Ascorbic Acid can reduce the release of these inflammatory mediators by inhibiting the NF-κB signaling pathway, thereby alleviating sun-induced dermatitis, erythema, and burning sensation. At the same time, it has an antioxidant reserve function and can neutralize the reactive oxygen species (ROS) induced by UV, blocking the vicious cycle of inflammation and melanin production. This characteristic makes it particularly suitable for addition to daytime sunscreen repair products or medical post-care formulations.
  4.By removing the accumulated carbonylated proteins and lipid peroxides in the epidermis and dermis, 3-O-Ethyl Ascorbic Acid can restore the normal transparency and metabolic activity of the stratum corneum, significantly improving skin dullness, sallow color, and lack of luster caused by oxidative stress, staying up late, or environmental pollution. Moreover, it can stimulate fibroblasts to synthesize collagen and inhibit matrix metalloproteinase (MMP-1), reducing collagen degradation, and enhancing skin elasticity and firmness.