Topical Myristyl Nicotinate Cream

Definition 1

A topical cream containing the ester prodrug myristyl nicotinate (MN), a lipophilic nicotinic acid derivative with potential chemopreventive activity. Upon topical application, myristyl nicotinate penetrates into the epidermis where the agent is cleaved and is converted into nicotinic acid (niacin); nicotinic acid then diffuses into cells where it is converted to nicotinamide adenine dinucleotide (NAD). NAD may stimulate poly(ADP-ribose) polymerase-1 (PARP-1); enhance skin cell turnover and epidermal differentiation; and strengthen skin barrier function. NAD is a coenzyme that plays a crucial role in many redox reactions; PARP-1 is an enzyme that plays an important role in DNA repair. (NCI Thesaurus)

Definition 2

A substance being studied in the prevention of skin cancer. Myristyl nicotinate cream is also being studied as a way to help lessen the side effects of retinoic acid (a form of vitamin A) when it is used to treat skin that has been damaged by the sun. Myristyl nicotinate cream contains a form of niacin (a member of the vitamin B complex). It is a type of chemopreventive agent. (NCI Dictionary)

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