Functions of plant extracts in cosmetics
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Last Update: 2020-04-03
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Source: Internet
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Author: User
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2013-09-16 classification: efficacy effect 1 person commented on the use of plant extracts in cosmetics to make it have a unique function At present, there are about 500 kinds of plants used in cosmetics at home and abroad, and their functions in cosmetics can be roughly divided into the following categories: (1) the common feature of anti-inflammatory and anti itching plants is that they contain biological active natural substances that are resistant to pathogenic dermatophytes and bacteria, and can prevent and treat a variety of skin diseases Common plants include aloe, liquorice, Ligusticum chuanxiong, Shicao, angelica, elderberry, gentian, Xanthium, Sanguisorba, Danshen, Shegan, etc When using this kind of plants in cosmetics, we should choose according to the causes and types of inflammation (2) Softening and moisturizing these plants are usually rich in polysaccharides, pectin, saponins and carotenoids They can give the keratinocytes in the cuticle hydrophilic, help to absorb water from the atmosphere, collect moisture and moisturize, leaving the skin in a moist and soft state Common species are aloe, phellodendron, licorice, apricot, Leonurus, forsythia, ivy, Gynostemma and so on (3) Astringency these plants mainly contain tannins and flavonoids, which have astringent effects on dermatitis and local tissue proteins, and can protect skin and mucosa Plants with such functions are mainly beautifying and whitening skin effects, as well as antiseptic and anti suppurative effects Common species are aloe, hamamelis, bayberry, geranium, peony, peony and so on (4) The extracts of these plants are rich in amino acids, organic sulfides and saponins In addition, plants that contain astringent ingredients also often have conditioning effects Common plants include Aesculus, Coix, tea, oil tea, aloe, sage, Chinese medicine, ginseng, Gynostemma pentaphyllum, elderberry, etc (5) The formation and increase of melanin is a direct factor In the process of melanin formation, tyrosinase plays an important role Therefore, the common feature of these plant extracts is that they have a high inhibition rate to tyrosinase activity Common plants are angelica, Platycodon grandiflorum, Cuscuta, shoot dry, ephedra and so on (6) The active component of this kind of plants is natural ultraviolet absorber, whose maximum absorption wavelength of ultraviolet is about 280 nm, so it can prevent the damage of ultraviolet to the skin Common plants include angelica, Coix, Lithospermum, aloe, chrysanthemum, Rhamnus, etc (7) The main function of anti cracking is that plant oils have anti cracking function Vegetable oil is easy to be absorbed on the skin and has good spreading property It can protect the skin from drying and chapping The common types are rice bran oil, olive oil, safflower oil, coconut oil, wild lacquer tree oil, tea seed oil, Cupressus oil, etc (8) Preservative and antioxidant cosmetics will deteriorate during storage due to the action of microorganisms or the rancidity of oil components Plant extracts that can be used as preservatives and antioxidants in cosmetics can be divided into: sterol preservatives and antioxidants, such as Scutellaria, phellodendron, Achyranthes bidentata, Hedyotis diffusa and other extracts; quinone preservatives and antioxidants, such as Polygonum cuspidatum, rhubarb, Jueming and other extracts; phenol, acid preservatives and antioxidants, such as white peony, peony, xuchangqing Forsythia and other extracts (9) Most of the plants containing aromatic oil have the functions of sterilization, disinfection and deodorization In addition, plant extracts with anti-inflammatory and astringent effects also have similar effects.
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