Dissolving Powdered Ingredients in a Base and Water Requirements

Subject: Regarding the amount of water for dissolving powdered extracts

Hello,

Thank you for your question regarding dissolving powdered extracts, specifically Alpha Arbutin, when adding it to a base product.

Based on the information provided in the previous staff response:

• If the base product you are using already contains water, you can typically add water-soluble powdered ingredients like Alpha Arbutin directly to the base and mix until dissolved.
• Alpha Arbutin has a solubility in water of approximately 15%.
• Therefore, to dissolve Alpha Arbutin at a concentration of 2% in your final product, the base product must contain at least 30% water to ensure sufficient water is available for dissolution.

Please ensure your base product has a sufficient water content (at least 30% for 2% Alpha Arbutin) before adding the powder directly.

Thank you.