1. These two formulas, acne prone skin, sensitive skin can use it? If there are any substances that should not be used on acne-prone skin, sensitive skin, please advise correction and bring a new substance, the amount of how to mix it for me. 2. Contains substances that cause clogging Irritant substances 3. Are there any substances that are harmful to the skin in the long term? If there is a problem, please advise, correct and recommend a new substance that is not harmful to the skin and long term. 4. Serum formula, if replacing the whitening agent instead.
Alpha Arbutin there any substitute that has excellent whiteness and black pigment reduction performance?
Alpha Arbutin or better because read on the web
Alpha Arbutin can irritate 5.If you enter
Alpha Arbutin more than 2%, how will there be problems with skin and product texture? 6. If increasing the amount
Alpha Arbutin to 6 percent must be added.
สารกันเสีย or not?
Alpha Arbutin to 10 percent must be added.
สารกันเสีย ? The speed of using the serum If the spinning speed is too high, will it affect the product or not its performance?