Formulating Water-Free Toner/Essence with Mandelic Acid and Butylene Glycol
Question
Can I mix Mandelic Acid, Butylene Glycol, and other ingredients without adding water to create a 'น้ำตบ' (toner/essence)? Are these ingredients compatible in such a formulation, and what are the potential issues or considerations?
Answer
Based on your question and the staff's reply, mixing all these ingredients together without adding water is generally not suitable for creating a 'น้ำตบ' (toner/essence). A 'น้ำตบ' typically requires a water-based solvent to achieve its light, non-sticky texture.
The staff confirmed that the ingredients themselves can be mixed, but proper formulation is crucial. They provided important advice:
- Always check and follow the recommended usage rate for each ingredient.
- Mandelic Acid will significantly lower the pH of the formula. You must measure the pH and adjust it to a level suitable for all ingredients. For beginners, the staff strongly recommends omitting Mandelic Acid.
- To achieve the desired lightweight and pleasant texture of a 'น้ำตบ', use appropriate, often low, concentrations of the ingredients. Texture and usability are key for consistent use and results.
Therefore, while the ingredients are compatible when formulated correctly, you will likely need a water base (like purified water or a hydrosol) along with the Butylene Glycol to create a usable 'น้ำตบ' with the desired consistency, following the staff's guidance on concentrations and pH adjustment (especially regarding Mandelic Acid).