In 1979, researchers produced a synthetic human growth hormone in the lab, using bacteria equipped with human hormone genes. (sciencenews.org)
Did you know that as plastic breaks down in our environment it can mimic human hormones and is linked to everything from breast cancer to early puberty? (earthday.org)
They are able to patented, because they do not have the same molecular structure as human hormones. (holtorfmed.com)