Hairdressers have begun warning heavy users of dry shampoos to ease off on the spray, which if overused can lead to scalp irritation, sores and even bald patches.
According to celebrity hairdresser Lee Stafford earlier this year, dry shampoos are "not designed to be used on a regular basis" and excessive use of the gritty substance can wreak havoc on one's hairline. Because while occasional use is fine, when used in place of showering (which, I guess, happens), the oil-absorbing substances in the shampoos can clog pores as well as dry out the scalp -- leading to sore and flaky patches, not mention subsequent hair loss.
"It's the human equivalent of the dust baths animals take," Iain Sallis, a trichologist at the Farjo Hair Institute in Manchester told The Daily Mail. "It coats the hair rather than making it clean, which means that the microbes which feed on the moisture in the scalp will still be there" -- a problem for those prone to dandruff or dermatitis. Yikes, remember to always shower, kids.
[h/t Daily Mail]