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Arbutin is an active substance existing in natural plant, bearberry, and has been used to treat and prevent skin pigmentation and brighten the skin with its inhibition effects of tyrosinase activity. Alpha-Arbutin is a biosynthetic active ingredient that is pure, water-soluble and is manufactured in a powder form. As one of the most advanced skin lightening ingredients on the market, it has been shown to work effectively on all skin types. It is the epimer of arbutin, and research has proven that it has a stronger inhibitory action than that of beta arbutin (Also known as just Arbutin). Though it is a very expensive ingredient to manufacture, even at very low concentrations, Alpha Arbutin has shown to inhibit the activity of tyrosinase. Alpha Arbutin’s inhibitory mechanism is different from that of Beta Arbutin and can be up to 10 times more effective. The a-glucosidic bond found in Alpha Arbutin offers higher stability and efficacy than B form found in the related Beta-Arbutin. This leads to a skin whitening active that acts faster and more efficiently than existing single components.
Alpha Arbutin is preferred over Hydroquinone. It is the more effective, faster and safer approach to promoting skin-brightening and an even skin tone on all skin types. Alpha-Arbutin also minimizes liver spots and meets all the requirements of a modern skin-brightening and skin depigmentation product.
Alpha-Arbutin is water soluble and easily incorporated into the water phase of cosmetic formulations. It is stable against hydrolysisas tested in the pH range from 3.5 – 6.6.