Hello
Disodium EDTA should be present in the formula.
Allantoin can be dissolved not more than 0.5%, ask for water, must be reduced, otherwise it will precipitate in the formula.
Natural PHA Be careful with pH as the formula will have a low pH which will affect the ingredients. things like
Rice Vitamin and
Allantoin has a minimum pH of 4. If the formula uses a PHA of 5%
วัดค่า pH What is the final pH in the formula?
Ichthammol Smell and color may cause the formula to smell and color.
สารกันเสีย Choose one, enough is not necessary. You have to choose 2 types. Newbies recommend choosing only a few ingredients. This will give the combination a greater chance of success. If you choose a lot of ingredients There will be more variables as learned above for this recipe It is recommended to mix only 1+2+5+8+9 is enough.