Can Cosmetic Raw Materials Be Applied Directly?
Feb 23, 2022
Some can, some can't. Overall not recommended.
Reasons for not recommending are:
1. For some raw materials, the higher the concentration, the better: for example, the most basic glycerin, if the amount is too large, it will absorb the moisture of the skin, and the more it is used, the drier the skin feels. It is made into a liquid that is convenient to use, but the concentration is still very high, and the skin will not be able to stand it when used directly. .
2. Limited skin absorption: Many raw materials have an optimal concentration, such as niacinamide at 4-5%; such as vitamin A alcohol, generally at 0.1%; such as salicylic acid, below 2%; many raw materials will There is a recommended concentration, which is the best concentration to produce the effect. The higher the concentration, the limited skin absorption, not to mention waste, but irritation will happen......
3. Learn to use 1+1>2: The combination of ingredients can not only have a better skin feel, but also have better effects.
