<prompt> Berloque dermatitis is due to contact withMetalsCosmeticsFoodPlants  <response>: Berloque dermatitis By 5-methoxypsoralen bergapten in bergamot oil contained in perfumes. Term arose from the method of applying perfume to the sides of the neck and upper chest in a pendant shape berloque is French for pendant. Wavelengths of UV light above 320 nm and hot humid conditions our absorption. Deep-brown pigmentation follows the pattern formed by the trickle of the droplets of perfume over the skin from their points of application. 