A2 is a baby formula containing only the A2 beta casein protein therefore reducing tummy upsets, whilst supporting natural digestion, brain and eye development and the immune system. A2 formula does not contain the mutant gene BCM7 which is responsible for symptoms of dairy intolerance. By illuminating this gene and containing only the A2 gene, A2 baby formula is gentler and easily tolerated by the stomach. Suitable from birth to toddler.