Yea-Sacc 30 contains a mixture of Yea-Sacc & Brewer’s Yeast. Yea-Sacc provides the yeast Saccharomyces Cerevisiae which supports the fibre digestion process, whilst the innovative inclusion of Brewer’s Yeast provides B vitamins & Amino Acids. Feed to maintain a healthy hindgut or give at known times of stress to support & stabilise the hindgut microflora. 30 day supply.