Magnesium Ascorbyl Phosphate (MAP) Solubility and Usage in Water-Based Serum
คำถาม
The product page for Magnesium Ascorbyl Phosphate under "Additional Info" and "Technique" mentions mixing in the oil phase, but the "Solubility" section states it dissolves in water. I am confused if this ingredient is soluble in both water and oil.
Can I mix it only in the water phase for a serum formulation that does not contain an oil phase? This is to avoid using an Emulsifier in the formula.
คำตอบ
Magnesium Ascorbyl Phosphate (MAP) Solubility and Usage
Regarding your question about Magnesium Ascorbyl Phosphate (MAP), the information from the product description confirms that Magnesium Ascorbyl Phosphate is water-soluble.
- Solubility: It dissolves in water.
- Mixing Method: It should be mixed into the water phase of your formulation.
Therefore, you can definitely use Magnesium Ascorbyl Phosphate in a water-based serum without needing an emulsifier to incorporate the MAP itself, as it will dissolve directly into the water.
The product description also provides important formulation notes for using MAP:
- The formula should have a pH between 7 and 9 for optimal stability.
- Avoid heating the mixture above 60°C.
- It is recommended to include Disodium EDTA 0.05% in the formula to help with stability against metal ions.
It seems there might be conflicting information on the product page you referenced. Based on the detailed description, MAP is clearly a water-soluble ingredient meant to be dissolved in water.
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