Allantoin refinement is a kind of avirulent, insipidity, without excitant, no allergic white crystals, The crystallization in water is single prism or colorless crystalline powder. Soluble in hot water, heat and dilute sodium hydroxid solution, Slightly soluble in cold water and alcohol, hardly soluble in ether and chloroforme and other organic solvents, The saturated water solution concentration (0.6%) is slightly acidic,ph is 5.5,it is stability in the water solution when the ph value is 4-9,as well as in nonaqueous solvent and dry air, it can be decomposed under sunlight exposure or Boiling in strong alkaline solution.

It is an important fine chemicals widely used in pharmacy, light industry, agriculture, daily chemicals and bio-engineering:

1.In Pharmacy: can boost the growth of cells and healing up of wound; also effective to xerodermia, osteomyelitis and hepatocirrhosis etc.

2.In cosmetics: can keep moisture of skin; widely used in freckles cream, shampoo, soap, toothpaste etc.

3.In agriculture: used as plant growth regulator of wheat, rice, vegetables and tea.

Because of allantoin is one kind of amphoteric compound, can be combined with a variety of substances to form double salts, With a dark, sterilization antisepsis, acetanilid, antioxidant effect, Can keep skin moisture, moist and soft, so it is a effective additives for the hairdressing cosmetics, Widely act as additive used in the freckle cream, acne liquid, shampoo, soap, toothpaste, shaving lotion, hair conditioner, astringent, resistance to sweat deodorant lotions . it can makes cosmetics has the function of  protection organization, water, water absorption and prevent moisture distribution when add it,it makes the hair emulsion,hair cream and shampoo with good ability of protection hair, Can make the hair bifurcate, not hair,the lipstick and face cream with it can make the skin and lip more soft and smooth,also make it more shine and beauty. Allantoin can promote tissue growth and metabolism of cells, soften cutin protein.