Cholest-4-en-3-one, as the cholesterol oxidation products, it plays the role of anti-obesity, the treatment of liver disease, preventing skin keratinizing.

According to the report published online February 26th by the Journal of Investigative Dermatology, caffeine did, in fact, more than double apoptosis of UVB-exposed human keratinocytes.

In one technique, a patient's own skin cells, or keratinocytes, are taken and more are grown in the laboratory to replace damaged skin, the researchers say.