Basic performance requirements:
Security. Cosmetics are used for healthy skin almost every day, so they must ensure the safety of long-term use on the human body, that is, non-toxic, non-irritating, and non-mutagenic disease-causing effects. Cosmetic safety tests are often done in the following two ways:
(1) Toxic (2) irritating
Stability. Considering the end use stage and shelf life, the product is required to colloid
It can maintain long-term stability in terms of scientific performance and microbial survival, and does not deteriorate in the period of validity.
Comfort. Cosmetics must make people happy to use, not only color and smell, but also
It must be comfortable to use. Beauty cosmetics emphasize aesthetic touches; Aromatic products give an overall feeling of physical and mental comfort.
Effectiveness. Cosmetics should help to maintain the normal physiological function of the skin as well as a glowing effect.