Â鶹´«Ã½

Existing treatments for male pattern baldness come with downsides. Minoxidil, which increases blood flow to the scalp, only works for of men. Finasteride, which blocks the hormone responsible for hair loss, can reduce sex drive and fertility.

Now, several groups are looking at whether valproic acid – a medication used to prevent epileptic seizures – could do better. This follows of some balding patients getting their hair back while taking the drug.

In 2014, a study in men with moderate hair loss found that spraying valproic acid on the scalp twice a day improved hair density by