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kojic acid vitamin c glutathione soap Achieve a brighter, smoother, and healthier-looking complexion with Soap. Enriched with a powerful blend of L-Glutathione, Acid, C, Arbutin, Turmeric, and Aloe Vera, this nourishing gently cleanses while Tamaño:5 kilogramos (11 libras) Viên uống trắng da daily health

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在一实施例中，如果步骤a)使用鸟氨酸，其是以水溶液的形式被应用，该水溶液具有从大约9.5到大约10.0的pH值，例如，9.6。在这一接近鸟氨酸等电点(9.6)的pH值范围内，鸟氨酸将以带有一正电荷的形式存在，由此可以与带有一个负电荷的α-硫辛酸形成盐合成物。In one embodiment, if ornithine is used in step a), it is applied in the form of an aqueous solution having a pH of from about 9.5 to about 10.0, eg, 9.6