H4U Brewer's Yeast 400mg 180tabs is a vitamin nutritional, anti-anemic and digestive supplement. Brewer's yeast contains all the essential amino acids in the right amounts for our metabolism to develop its own proteins. It is also one of the richest supplements in B vitamins, a type of vitamin essential for correct biochemical and metabolic functionality of the organism. This supplement helps to strengthen skin, hair and nails. It promotes digestive health. Facilitates cellular oxygenation and strengthens the immune system.