Beer Shampoo - cooking recipe

Ingredients

3/4 cup beer (any cheap brand)
1 cup shampoo

Preparation

In a saucepan, boil the beer until it is reduced to 1/4 cup. Cool the beer and add it to the shampoo.
Note: You have changed the composition of the shampoo, therefore, changing the preservatives that have been added -- so this is something that I would use up fairly quickly as the shelf life has been changed.