Dehydration of the skin can cause a series of skin problems. If the skin lacks too much water, the skin will become rough and scaly, causing skin barrier defects, making it easier for external harmful substances to enter the skin, and serious skin diseases will occur. Using moisturizing products can improve this situation. At the same time, moisturizing is generally considered as the first step to combat skin aging, helping to maintain the appearance and elasticity of the skin, and strengthen.
Vegetable oil can form a hydrolipid film on the surface of the skin, which not only has a moisturizing effect, but also makes the skin waterproof. Vegetable oil can strengthen the skin barrier and affect the reconstruction of the stratum corneum, prevent the loss of skin moisture, and normalize the sebaceous glands. Vegetable oils also have an important effect on the normal appearance and function of the skin. Unsaturated fatty acids are the main components of vegetable oils. In addition to unsaturated fatty acids, wheat germ oil is also rich in vitamins. Wheat germ oil is added to shower oil formulations to form a sealing layer on the skin to prevent water loss, increase moisturizing effect, and promote skin regeneration for dry and rough skin. effect. In addition, the combination of wheat germ oil and some plant extracts has a better synergistic effect and is very effective in preventing dry skin. Many vegetable oils not only have a moisturizing effect, are easily absorbed by the skin and have good spreadability, but also have a variety of biological activities.Grape seed oil contains a large amount of omega-6 fatty acids, which can regenerate the lipid barrier of the epidermis for dry skin and prevent excessive loss of water; for oily and seborrheic skin, it can improve acne and normalization of sebaceous glands.
In addition to vegetable oils, the main moisturizing components in plant extracts are polysaccharides, saponins, flavonoids and polyphenols. The structural characteristics of these ingredients are polyhydroxy or polyphenolic hydroxyl groups, which mainly form hydrogen bonds through the hydroxyl or phenolic hydroxyl groups to bind water and maintain moisture to produce moisturizing effects. The more hydroxyl groups in the water-soluble polysaccharides and saponins in plant extracts, the stronger their ability to bind water generally. In addition to moisturizing effects, these ingredients in plant extracts usually have antioxidant and anti-inflammatory effects.