Vitamin E is a powerful anti-oxidant which helps protect cellular function in the body, with an important role supporting muscle and nerve function. Horses that may need extra supplementation are performance horses (particularly those who ty up or are regularly muscle sore when conditioned*) as well as horses with limited access to fresh grass. Vitamin E aids the uptake of selenium and in addition aids immune and reproductive function. *We also advise checking selenium and electrolyte status.