It appears that beer, deemed unfriendly to your liver, has otherwise positive results to your hair (and state of mind, of course). The reason is that vital ingredients contained in beer have hair-friendly nutrients. Barley, for example, is known to have vitamin B, minerals and proteins. Whereas hops, which add the beer’s bitterness, have wonderful conditioning oils in them. It seemed only a matter of time before breweries, such as Duffy’s Brew and Broo have their own beer beauty products.