It's very important that you read this story from "Iceland Magazine"

Here's the lead—finish the rest of it here!

Shampoo made of cow urine based on an old Icelandic tradition 

Icelandic entrepreneurs are now marketing shampoo with cow urine as one of its ingredients. Women soaking their hair in cow urine was a common practice in Iceland for centuries when soap was a far fetched luxury. It was believed to work miracles on the hair, leaving it revitalised and shining. 

The new hair soap is called Q Shampoo (Q literally sounds in Icelandic like the Icelandic word for a cow “kú”).