Cosmetics Formulation Development

I'm sorry to ask. วิตามินซี in the attachment claiming to be วิตามินซี 100% Don't know if it matches วิตามินซี which one is available for sale?

Hello, the product is Vitamin C Ultra-Fine

The use can only be used 3-15%, but why are they sold as 100% and allow users to scoop and mix with other lotions or creams?

Hello, the owner of the product Informed that it must be mixed with lotion or cream before use, it is considered diluted. As the members said that using 100% must mean applying to the skin directly. without having to mix it with lotion or cream first

This means that this one does not need to be mixed at no more than 15% without causing harm or harm, right? Because in the case of customers who buy this product, they may mix a lot. up to more than 15% and if you take this to be divided, packaged, sold in this manner and let the user to mix himself as well By producing with myskinrecipe and asking the FDA. Can it be done?

Hello,

means that this one doesn't need to be mixed at no more than 15% without causing harm or harm, right? Because in the case of customers who buy this product, they may mix a lot. up to 15%

Using L-ascorbic acid more than 15% is not harmful to the skin. There may be a slight collapse or skin irritation. from the acidity of วิตามินซี , but it is not harmful. However, its use exceeds 15%. There is not enough research to confirm it. that efficiency is better Currently found There are some research findings It has been shown that using 20% will give better performance. But the variables in the research results are controversial.

And if you take this to be sold like this and let the user mix himself as well By producing with myskinrecipe and asking the FDA. Can it be done?

You can order through: recipes Yes. Please notify the FDA.