Black henna temporary tattoos (BHTTs) have prompted a warning from the British Skin Foundation.Dermatologists have reported a rise in skin reactions to the tattoos, including blistering, burns and even possible scarring.It is believed parents are treating their children to temporary tattoos on holiday and could be unaware of the dangers of BHTTs.The majority of BHTT are not based on henna at, but a substance called para-phenylenediamine (PPD) which is found in hair dyes. PPD is allowed for use...
