Hello, the formula can be mixed.
สารชะล้าง that you choose to use is already highly gentle. but could not answer that Will there be a problem with users who are sebderm or not? In general cleansing formulas, using 10-15% is enough. It is unlikely to need to increase to 20% depending on the rate of use. (of the finished product) per time of washing with it. For example, if we make a formula with
สารชะล้าง 20% in a pump bottle. May be pumped once per wash 1 time, but if making a formula that has
สารชะล้าง 10% maybe pump 2 times. This is to adjust the user's own usage rate.
3.How to do the mixing process to be the most accurate
Mix the oil-soluble ingredients with
สารชะล้าง first Well, the case of this formula is
Citromask when mixed well and then added to water. Other ingredients dissolved in water You can add it to the water.
SugarThick , which acts as a thickening agent. Add it to the formula in the last step.