OCTINOXATE, A SUBSTITUTED CINNAMATE, IS USED BY TOPICAL APPLICATION AS A SUNSCREEN. CINNAMATE SUNSCREENS EFFECTIVELY ABSORB LIGHT THROUGHOUT THE UVB RANGE BUT ABSORB LITTLE OR NO UVA LIGHT .CINNAMATE SUNSCREENS MAY THEREFORE BE USED TO PREVENT SUNBURN BUT ARE UNLIKELY TO PREVENT DRUG-RELATED OR OTHER PHOTOSENSITIVITY REACTIONS ASSOCIATED WITH UVA LIGHT; COMBINATION WITH A BENZOPHENONE MAY GIVE SOME ADDED PROTECTION AGAINST SUCH PHOTOSENSITIVITY. CINNAMATES MAY OCCASIONALLY PRODUCE PHOTOSENSITIVITY REACTIONS.