Deoxyarbutin and Hydroquinone Formation

Yes, it is true that Deoxyarbutin (D-Arbutin) can have stability issues related to heat, which can lead to its breakdown into Hydroquinone. This is a known characteristic of Deoxyarbutin.

Other substances in the Arbutin group, such as Alpha Arbutin, can also break down into Hydroquinone, particularly in formulations with a high pH (above 8).

To maintain the stability of these ingredients and prevent the formation of Hydroquinone:

• For Deoxyarbutin (D-Arbutin):

  • Avoid heating above 60°C during the mixing process. If heating is necessary, minimize the exposure time.
  • Maintain the formula's pH between 5.0 and 5.8 for optimal stability.
  • Consider using Vitamin E Acetate at 0.1% and ActiveProtecTM OX at 0.6% in the formula to help enhance stability and prevent discoloration.

• For Alpha Arbutin (including Alpha Arbutin (Switzerland), Alpha Arbutin (China, Powder, Enzymatic Synthesis), and Alpha Arbutin (China, Crystal Form)):

  • Mix into the final product when the temperature is below 30°C.
  • Ensure the formula's pH is between 3.5 and 6.5. Avoid formulations with a pH higher than 8.
  • Using ActiveProtecTM OX at 0.6% can help prevent formula discoloration.

By following these guidelines, you can help ensure the stability and safety of cosmetic products containing Deoxyarbutin or Alpha Arbutin.