Vitamin B7 (also known as biotin or vitamin H) is a water soluble vitamin and part of the B complex group (eight vitamins that were initially thought to be the singular vitamin B).  The discovery of vitamin B7 dates back to the 1927 when M.A. Boas realised that feeding rats raw eggs for several weeks would lead to a condition called 'egg white injury' (where they would develop a skin condition similar to eczema, lose all their hair, become paralysed and bleed under their skin).  Soon after this Boas discovered that a substance in liver which he named 'protective factor x' could treat 'egg … [Read more...]