With the affluence of people's material life, the pursuit of beautiful skin is becoming stronger and stronger, and people pay more and more attention to whitening and freckle removal. With the progress of society, toxic chemical whitening agents such as mercury have faded out of people's sight and replaced by pure natural plant whitening products without side effects. Mulberry is rich in tyrosinase inhibiting and antioxidant active ingredients. Although there are not many related products on the market, its high efficiency, pure nature, low cost and other advantages will attract more and more researchers to apply it to the cosmetics industry.

    The main problems to be solved in whitening are melanin deposition and color spots. The causes of their formation are very complex, which can be roughly divided into internal factors and external factors. Internal factors such as genetic factors and endocrine disorders, and external factors such as ultraviolet radiation and environmental pollution, but the root cause is melanin deposition. Melanin formed by melanocytes can be divided into eumelanin and melatonin. In this process, inhibition of tyrosinase and elimination of free radicals are two key ways of skin whitening.

    Tyrosinase is a copper containing aerobic enzyme. Superoxide anion radicals must be involved in the conversion of tyrosine to dopa. Therefore, the elimination of oxygen free radicals can block the catalytic reaction of tyrosinase, thus weakening the intensity of tyrosine oxidation reaction and reducing the formation of melanin. The use of antioxidant substances to remove free radicals can weaken the oxidation of human body, neutralize or reduce the production of free radicals, and play an important role in maintaining skin elasticity, inhibiting the production of melanin and reducing melanin deposition. Mulberry glycoside a contains multiple hydroxyl groups, belonging to polyhydroxystilbene compounds. In addition to its good antioxidant and free radical scavenging functions, it can also significantly inhibit tyrosinase. thereforemulberroside A It is a good choice for whitening.