Cosmetics Formulation Development

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?

Hello, according to the questions asked by members. The team understands that they are concerned about safety. of such formulas But on the other hand, the members are trying to use Alpha Arbutin at a concentration of more than 2% from the specified rate is not more than 2%, which is clearly stated on the web page. Please suggest that The rate of use of various ingredients is specified on the web page. It's a safe rate. and not more than the amount specified by the FDA in case of use at a higher rate than that Can adversely affect the skin, please think again and do the reverse as the members are going to do is Try to use the ingredients at a higher rate than the limit. and worried that it would be harmful to the skin change to Use the ingredients at a rate not exceeding the specified amount. and don't worry that it will be dangerous