Hello, I recommend you to change
สารกันเสีย from
Phenoxyethanol to
Mild Preserved Eco 1%. The formula can be mixed. To adjust the pH, use
glycolic acid slightly, adjust it to the desired level. able to man by hand But it may take a long time. results can be expected but suggest additional help
นำพา ingredients into the skin, such as
Dimethyl Isosorbide (DMI) 2%