Because it is mainly to replenish water from the inside of the body, the mask is only to soak the keratin. Isn't it to add nutrition to the bacteria by applying a mask to acne skin, which is equivalent to your acne? No doctor will advise you to apply a commercial mask.

Mask is a kind of skin care products, which is used to replenish water to the skin, and also has many functions such as moisturizing, moistening, nourishing, improving appearance, deep cleaning and so on.

The mask covers the stratum corneum of the skin, provides moisture for the stratum corneum, and fully hydrates the stratum corneum to improve the appearance and elasticity of the skin; Contains humectant and softener, etc., and has sealing effect at the same time, which can reduce water loss from skin, soften cuticle and promote effective components to be absorbed through skin.

During the drying process of water evaporation, the mask makes the skin shrink moderately, and the sealing effect makes the skin temperature rise temporarily and promotes blood circulation.

In the process of peeling or elution of partial peeling or washing-off mask, dead skin on face and dirt on skin surface can be removed, which has a certain cleaning effect.

The above contents refer to Baidu Encyclopedia-Mask.