Compatibility of Gold and MAP in Serum Formulation

# Compatibility of Gold and Magnesium Ascorbyl Phosphate (MAP) in Serums

Regarding your question about including pure gold in a serum formulation with Magnesium Ascorbyl Phosphate (MAP), cosmetic grade gold, such as gold flakes or particles used in serums, is generally inert. This means it is not expected to chemically react with or interfere with the stability or function of Magnesium Ascorbyl Phosphate.

Magnesium Ascorbyl Phosphate is a stable form of Vitamin C that works best in formulations with a pH between 7 and 9. While cosmetic gold itself is unlikely to cause interference, it is a good practice when formulating with MAP to include a chelating agent like Disodium EDTA at a concentration of around 0.05%. This helps to chelate any trace metal ions that might be present in other ingredients or introduced during manufacturing, which could potentially affect the stability of MAP.

In summary, cosmetic gold is compatible with Magnesium Ascorbyl Phosphate, and including a chelating agent like Disodium EDTA can further help ensure the stability of the MAP in the formulation.