1. What exactly is α-arbutin and what is the principle of action?

  α-Arbutin is used as antioxidant, bleaching agent, and skin conditioner in cosmetics. α-Arbutin is the epimer of arbutin.

According to its own molecular structure characteristics, it can inhibit the activity of tyrosinase, thereby inhibiting the formation of melanin.

It is scientifically proven to be an antioxidant for whitening and freckle removal.

  1. What is the safety of α-arbutin?

  Because of the characteristics of its molecular structure, it has a milder effect and weaker irritation. The effect can also be exerted when the concentration is low, and it will not strongly stimulate the skin tissue.

Compared with other acids, such as highly irritating kojic acid and fruit acid that cannot be touched by sensitive muscles, it is generally safe and reliable~

At present, the amount of β-arbutin added in cosmetics and the amount is 3%. When it is less than this amount, the catalytic activity of inhibiting tyrosinase in the skin is relatively weak, and the whitening effect on the skin is not obvious, which is greater than this amount. It will inhibit the activity of tyrosinase and produce cytotoxins to the cells of the body, which is not good for the skin.


In comparison, α-arbutin does not affect cell growth at higher concentrations. Therefore, the overall safety and effective performance of α-arbutin are higher than β-arbutin.

Studies have found that the effect of arbutin is very good, but the effective concentration for makeup has not yet been determined. Many little sisters don’t know what percentage of arbutin should be used to have the whitening effect~

The European Union Scientific Committee on Consumer Safety (SCCS) stated in its latest opinion: when the content of α-arbutin in facial care products does not exceed 2% and the content in body care products does not exceed 0.5%, it is safe of.

Alpha arbutin
Alpha arbutin

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