Arbutin is mainly taken from the leaves of bearberry, also known as arbutin, mainly white needle-shaped crystals or powder, which is relatively soluble in hot water, methanol, etc. Arbutin is unstable under acidic conditions and is easily hydrolyzed. Arbutin has a relatively good whitening effect of arbutin, which can effectively inhibit the activity of tyrosinase and block the formation of melanin.
Arbutin is easy to decompose in an acidic environment, so pay attention to the pH of creams and lotions. The system should be controlled at around 7. Adding natural plant oils containing oleic acid and linoleic acid to the system can promote the synergistic effect of arbutin. Adding 0.8 to 1.0 percent of azone can promote the absorption of arbutin and prevent arbutin from precipitating on the skin.
When using arbutin stock solution, users do not follow the principle of the more the better. They should pay attention to the concentration not exceeding 7%. Once the concentration is exceeded, photosensitivity will occur, and the melanin content in the skin will increase. After use, the skin will become darker and prone to spots. The concentration of arbutin stock solution used daily is between 1% and 2%, so there is no need to worry about photosensitivity. It can be used safely during the day and at night.
However, we should also be careful when using arbutin. We should not overuse it. Excessive use will also cause certain problems in the body, so we should use it in a quantitative and restrained manner to achieve its most effective effect.
