Allantoin is not only a derivative of urea, but also a compound of urea. It is an important fine chemical product. It is widely used in medicine, agriculture and light chemical industry. As a skin protective agent, allantoin is classified as "safe and effective" (Classification I) by the Food and Drug Administration (USFDA). It was named for its first discovery in cattle allantoic fluid.

Allantoin is derived from the roots of Arnebiaceae herbs and has been known as an anti-irritant. The Food and Drug Administration (FDA) lists allantoin as the first class of active ingredient skin care agents. Schwartz's long-term patch test showed that allantoin was non-toxic, non-irritant and non-allergic.

Aloe Vera, a popular medicinal cosmetics ingredient in the market, has the main functions of anti-inflammation, softening keratin and rapid wound healing due to its allantoin content, according to Alan R Gaby, president of Holistic Medical Association. It can be used alone or in combination with other functional raw materials. Because of its low content in aloe, most foreign manufacturers of aloe cosmetics use it in combination with allantoin to increase efficacy.

Molecular formula: C4H6O3N4, molecular weight: 158.12.

So where is the skin care function of allantoin?

1. Allantoin as an anti-irritant can help alleviate the discomfort and skin irritation of cosmetics components such as soap and detergent surfactants, oils, acids and alkalis, and eliminate allergic phenomena such as redness, roughness and rash. It can promote the natural process of human health and give satisfactory feeling, help skin self-improvement, and play a good role in skin care.

2. It can be used for skin irritation allergy treatment, skin rejuvenation, skin inflammation, burn and scald treatment.

3. Allantoin is also known as a cell proliferator. Epithelial coverage stimulant and chemical debridement agent can clear necrotic tissue and stimulate the growth of new healthy tissue. It can be used for temporary protection of small wounds, scars, burns and sunburns, and for temporary protection of skin or lips with abrasions, chaps, ruptures or dry cracks. It can make cells proliferate so that the epidermis can form quickly. It can repair the skin, induce the tenderness and delicacy of the new skin, and make the skin inflammation, allergic reaction, Zouwen and aging, chap get good repair and restore normal function.