Solubility and pH of Na-Ecamsule (Mexoryl SX) for Cosmetic Formulation
ถามโดย: atchareeya.boonthanaarkrapat
เมื่อ: September 12, 2025
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คำถาม
Regarding Na-Ecamsule (equivalent to Mexoryl SX), I have two questions:
- When dissolving
Na-Ecamsulein water, should the resulting solution be clear? - Is there a specific pH at which
Na-Ecamsuleneeds to be dissolved for optimal results in cosmetic formulations?
คำตอบ
Na-Ecamsule (eq. Mexoryl SX) is a water-soluble sunscreen agent. When dissolved in water with the aid of heat (approximately 60 degrees Celsius), it should form a clear solution.
Regarding pH, Na-Ecamsule itself has a pH of about 9-11. For use in cosmetic formulations, mild acids can be added to adjust the pH to a skin-friendly range of 5-7.
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Na-Ecamsule (eq. Mexoryl SX)
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