Hello, the formula can be mixed together. But the study team recommends customization to be more suitable as follows: 1.
สารกันเสีย 1,2-Hexanediol is not required because
Witch Hazel (Alcohol Free) Plus Allantoin will contain
สารกันเสีย come from the manufacturer.
ลดความมันผิว to help balance the oiliness of the skin. Do not give it too much, as follows:
Zinc PCA 1%
Safe-B3 5% 3. Due to oily skin The study team recommends reducing the usage rate.
สารสกัดมะหาด (Oxyresveratrol) down to 2-3%. Using higher than this may cause skin discomfort and greasy skin.