Acid-Resistant Emulsifier and TEA for Vitamin C 5% Formula
Question
What acid-resistant emulsifier should be used for a 5% Vitamin C (L-Ascorbic Acid) formula, and what percentage of Triethanolamine (TEA) should be added?
Answer
Acid-Resistant Emulsifier for 5% Vitamin C Formula and TEA Usage
For a 5% Vitamin C (L-Ascorbic Acid) formula, which is acidic, you need an emulsifier that can withstand low pH. Based on the product information, CreamMaker Acid™ is specifically developed for acid-based formulations and would be a suitable choice. The recommended usage rate for CreamMaker Acid™ is 0.5-5%, depending on the desired viscosity.
Regarding Triethanolamine (TEA), it is used in formulations to adjust the pH, making it more alkaline. In a Vitamin C formula, TEA can be used to raise the pH to a stable and effective range (typically below 3.5 for L-Ascorbic Acid). The usage rate for Triethanolamine 99% is 0.1-2.5%. You should not use more than 2.5%. The exact percentage needed will depend on the starting pH of your formula and the target pH you want to achieve. It is best to add TEA gradually while measuring the pH until the desired level is reached.
- Recommended Emulsifier: CreamMaker Acid™ (Usage: 0.5-5%)
- TEA Usage: Triethanolamine 99% (Usage: 0.1-2.5%, do not exceed 2.5%) - use to adjust pH.
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Triethanolamine 99%