The use of plant extracts or active ingredients in cosmetics is intended to have a unique function. Currently, there are 500 kinds of vegetable oils applied to cosmetics at home and abroad. Their role in cosmetics can be roughly divided into the following categories:

1 anti-inflammatory and itching, this kind of plant is a biologically active substance containing anti-pathogenic skin fungi and bacteria. The plant extracts commonly used in cosmetics are: aloe extract, licorice extract, Chuanxiong extract, comfrey extract, Angelica extract, gentian extract, salvia miltiorrhiza extract, dry extract, etc.;

2 softening and moisturizing, these plants are usually rich in polysaccharides, pectin, saponin and carotenoids. Common plant extracts are: aloe extract, cork extract, licorice extract, motherwort extract , Forsythia extract, Ivy extract, Gynostemma extract, etc.;

3 astringent effect, such plants mainly contain tannins and flavonoids, common plant extracts; aloe extract, peony extract, etc.;

4 conditioning, the extract of these plants is rich in amino acids and saponins and other ingredients, common extracts are: medlar extract, aloe extract, angelica extract, ginseng extract, Gynostemma extract, elderberry extract, etc. ;

5 anti-pigmentation spots, the commonality of these plant extracts is the blocking rate of tyrosinase activity, common plant extracts are angelica extract, platycodon grandiflorum extract, dodder extract.

6 sunscreen effect, the active ingredients contained in such plant extracts can be absorbed by ultraviolet light in the ultraviolet region of 280 nm. Common plant extracts include angelica extract, alfalfa extract, comfrey extract and the like.

7 anti-cracking effect, mainly vegetable oils have anti-cracking effect, common rice bran oil, olive oil, safflower oil, tea oil, etc.;

8 anti-corrosion and anti-oxidation, can be used as preservatives and antioxidants in cosmetic plant extracts: Astragalus extract, Cortex extract, Achyranthes extract, White Snake Extract, Rhubarb extract, Angelica extract, Forsythia extract, etc.;

9 anti-sweat and deodorant, most plants containing aromatic oil have the effect of sterilization and disinfection, in addition, the plant extract liquid with anti-inflammatory and astringent effect has similar effects.