STABILIZED ASCORBYL COMPOSITIONS
    1.
    发明公开
    STABILIZED ASCORBYL COMPOSITIONS 失效
    STABILISIERTE ASCORBYLZUSAMMENSETZUNGEN

    公开(公告)号:EP0944310A4

    公开(公告)日:2001-01-10

    申请号:EP97947537

    申请日:1997-11-17

    摘要: Fatty acid esters of ascorbic acid, particularly saturated fatty acid esters such as ascorbyl palmitate, their salts, ascorbic acid and its salts are solubilized in large amounts, e.g., up to about 25 % by weight, and stabilized using special solvent systems. Useful solvents include polyethylene glycol, ethoxydiglycol, propylene glycol, butylene glycol, propylene carbonate, glycerin, a capric glyceride, a caprylic glyceride, an alkyl lactate, an alkyl adipate, an isosorbide, and mixtures thereof. Preferred dermatological compositions made using these solvents with ascorbic acid and/or at least one of its derivatives also include dimethylaminoethanol, tyrosine, proline, cystine, a penetration enhancer such as oleic acid, urea or mixtures thereof, and at least one natural and/or chemical antioxidant. Natural antioxidants that contain at least about 50 % polyphenols and 50 % catachins such as grape seed or green tea extracts are employed in some embodiments.

    摘要翻译: 抗坏血酸的脂肪酸酯,特别是饱和脂肪酸酯如抗坏血酸棕榈酸酯,其盐,抗坏血酸及其盐以大量溶解(例如高达约25%重量),并使用特殊溶剂体系稳定。 有用的溶剂包括聚乙二醇,乙氧基二甘醇,丙二醇,丁二醇,碳酸丙烯酯,甘油,癸酸甘油酯,辛酸甘油酯,乳酸烷基酯,己二酸烷基酯,异山梨醇及其混合物。 使用这些溶剂与抗坏血酸和/或其至少一种衍生物制备的优选皮肤病学组合物还包括二甲基氨基乙醇,酪氨酸,脯氨酸,胱氨酸,渗透增强剂如油酸,尿素或其混合物,以及至少一种天然和/或 化学抗氧剂。 在一些实施方案中使用含有至少约50%多酚和50%猫爪角素(例如葡萄籽或绿茶提取物)的天然抗氧化剂。