A hair growth inhibitor is a substance that slows down or stops the growth of hair. One common example is finasteride, a medication used to treat male pattern baldness. Hair growth inhibitors can be useful for people who want to reduce the amount of hair on their body or head.
Hair growth inhibitors work by interfering with the production of hormones that stimulate hair growth. They can be effective in reducing hair growth by up to 50%. Hair growth inhibitors are generally safe and well-tolerated, but they can cause side effects such as decreased libido and erectile dysfunction.