Personal skin texture is determined by the moisture content of the skin's stratum corneum and the amount of sebum. Moisture accounts for 70% of the skin, 65% of the epidermis, and 10-20% of the stratum corneum. Skin rich in moisture, the skin texture will More plump, skin appearance will look smooth, delicate and soft.
Main functions of moisturizers:
1. Helps the combination of moisture and skin
2. Prevent moisture from evaporating from the skin surface
3. Prevent cosmetics from drying out
Types of moisturizers:
1.Hydrophilic moisturizers: polyols, natural moisturizing factors, peptides, polymer moisturizers
2.Occlusive moisturizer: The principle is to form a closed film on the skin surface to prevent water loss on the skin surface and soften the skin