Arbutin, also known as arbutin, is extracted from the leaves of arbutin. Its main role in skin care is to inhibit melanin, reduce skin pigment precipitation, and play a role in freckle removal, sterilization and anti-inflammatory.

       The formation of color spots is mainly caused by the damage of epidermal cells. Under the stimulation of external ultraviolet radiation, various electron radiation and environmental pollution, basal melanocytes will secrete melanin. The formation of melanin in human body is due to the action of tyrosine and tyrosinase. In order to resist the damage of external stimuli to the basal cells, excessive melanin cannot be metabolized into the skin normally, which will cause skin problems such as uneven skin color, dark skin, and even color spots.

        In our daily life, we are in various unfavorable environments, and our skin inevitably turns black. For example, sun exposure, visceral diseases, mental factors, poor sleep, metabolic disorders of vitamins and amino acids in the body, and skin inflammation can all lead to increased melanin and darkened skin tone. Therefore, people need whitening products to whiten and maintain the skin, α- Arbutin is considered as an ideal whitening product in the 21st century.

        Arbutin and vitamin C have similar mechanism of action. Arbutin inhibits the activity of tyrosinase through its combination with tyrosinase, thereby inhibiting the accumulation of melanin in human skin, so as to achieve the effect of brightening skin tone, whitening and brightening spots. Therefore, arbutin is added to many whitening products. Arbutin can inhibit tyrosinase activity in the body, prevent tyrosine oxidation, affect the synthesis of dopa and dopa quinone, inhibit the formation of melanin, and reduce the deposition of skin pigment.