化妆品警察宝拉.培冈破解护肤误区:黑头是由脏东西引起的

Blackheads are caused by dirt and can be scrubbed away.

Fact: Blackheads may make skin look dirty, but they are unrelated to dirt. Blackheads are formed when hormones cause too much sebum (oil) to be produced, dead skin cells get in the way, the pore is impaired or misshapen, and the path for the oil to exit through the pore is blocked, creating a clog. As this clog nears the surface of the skin, the mixture of oil and cellular debris oxidizes and turns, you guessed it: black. You cannot scrub away blackheads, at least not completely. Using a topical scrub removes the top portion of the blackhead, but does nothing to address the underlying cause and the enlarged pore, so they're back again before too long. Instead of a scrub, try using a well-formulated BHA (salicylic acid) product. Salicylic acid exfoliates inside the pore lining, dissolving oil and dead skin cells that lead to constant blackheads.