From Mi Spa:

“Beer has been used as hair treatment for centuries for adding body and shine. It can effectively rebuild and repair damaged hair because of the high proteins found in malt & hops. It also stimulates metabolic functions of superficial tissues of the scalp. Wonderful for dry scalp. Our version is a truly fragrance-free Shampoo Bar made with fresh home-brewed beer! You will be pleasantly surprised by the light herbal scent that comes naturally from the ingredients we blended in.”

$8