Chemicals in cosmetics, soaps tied to early puberty in girls

soapFrom Reuters, December 3, 2018.

Girls who are exposed before birth to chemicals commonly found in toothpaste, makeup, soap and other personal care products may hit puberty earlier than their peers who aren’t exposed to these chemicals in the womb, a U.S. study suggests.

Many chemicals have been linked to early puberty in animal studies including phthalates, which are often found in scented products like perfumes, soaps and shampoos; parabens, which are used as preservatives in cosmetics; and phenols, which include triclosan, researchers note in Human Reproduction. While this is thought to interfere with sex hormones and puberty timing, few studies have explored this connection in human children.

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