These years, the urea cream in the small red book can be said to be a fire, moisturizing, anti-dry, hydrating, it is said that with the use of fruit oil can also remove chicken skin.

What are all the roles that urea can play in cosmetics?

Urea is the main nitrogenous end product of protein metabolic breakdown. It is a natural humectant in healthy skin, while the amount of urea in dry skin is relatively low.

In addition to this, urea has antibacterial, antiviral and antimicrobial properties. Due to its anti-microbial properties, the need for preservatives in urea products is relatively low.

Urea exists in the stratum corneum of human skin. Urea is a component of the skin’s natural moisturizing factor, NMF is a protein complex with hydrophilic properties, and the amount of urea in it is about 7%, which is why the content of urea in cosmetics is about 5%-8%.

The effect of urea on the skin

1、Minimize water loss

Urea reduces the amount of water loss from the epidermis or outermost layer. Due to its superior water-locking capacity, urea is an effective moisturizer and emollient that extracts water into the skin to moisturize dry areas. It is often used to help treat eczema (eczema) or psoriasis (psoriasis).

2、Enhance the skin barrier

According to the New Zealand Dermatological Society (NZDS, theNew Zealand DermatologicalSociety), urea can help renew and regenerate skin cells, thus enhancing skin protection and health. In turn, skin with strong protection can block a variety of potential irritants.

3、Improve the penetration ability of other components

Because it acts on the skin barrier, urea can help other ingredients, especially hydrocortisone, to penetrate and be absorbed into the skin.

Applications

Urea can be used in skin care products, color cosmetics, and toiletries such as moisturizers, shampoos, conditioners, deodorants, toothpaste, hand creams, and foundations.

It is also an ingredient in medical products such as ear wax softeners, diuretics, fertility drugs, estrogen supplements, and wound or burn ointments.

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