Research and development of plant extract in moisturizing cosmetics

Moisturizing is also often considered the first step in combating skin aging, helping maintain the skin's appearance and elasticity and strengthening its role as a barrier to harmful environmental factors. This paper mainly introduces the moisturizing mechanism of the skin and the plant extracts with the moisturizing (Moisturizing Raw Materials) effect. Plant extracts are mainly elaborated from polysaccharides, oils, saponins, flavonoids, and polyphenols, which are good Cosmetic Raw Material to provide reference for the future research of plant-based natural moisturizing cosmetics.

Skin moisturizing mechanism:
Hydration of natural moisturizing factors. Natural moisturizing factor is a general term for small molecule compounds that can be hydrated by osmotic pressure in the stratum corneum. The natural moisturizing factor has a strong hygroscopic effect and can absorb water as a moisturizer for the skin. Natural moisturizing factors come from filamin, and the complete hydrolysis of it can produce natural moisturizing factors. The decrease of natural moisturizing factor decreases significantly with age and may be exacerbated by the age-related decrease in barrier function, which also reflects the cumulative effect of photoaging damage. So we need to use the Anti Aging Raw Materials.

 

Skin moisturizing method:
The dermis provides nutrition, structure, vascular support, and wound repair to the epidermis. The Collagen fibers in the dermis can not only store a large amount of water but also have large toughness and strong tensile force, which can give the skin toughness and tension to resist external mechanical damage. Hyaluronic Acid in the dermis constitutes the main protective barrier for the underlying tissue to defend against the external environment, which can not only combine with water to prevent water loss but also has the role of scavenging free radicals.
Several plant extracts with moisturizing effects:
In plants, sugar groups exist in the structure of water-soluble components such as polysaccharides and glycosides, and absorb and maintain water by hydrogen bonding; the phenolic hydroxyl structure of flavonoids and polyphenols also combine water through hydrogen bonding to absorb and maintain water; and vegetable oil maintains water by forming a thin layer of oil on the skin to prevent dry skin.
Its representative extract has Opuntia dilenil polysaccharides, Aloe Vera Powder Vitamin, Ceramide, Asiaticoside, etc.