For many men, shampoo is an afterthought. You choose it because it’s the best value-per-ounce at Costco. Or maybe you had nothing to do with selecting it because your partner bought it and — how ...

This article was reviewed by Knox Beasley, MD. If you’ve noticed the signs of male pattern baldness — say, a thinning hairline or a bald patch on the crown of your head — a hormone called DHT is ...