Lactase enzyme drops for adding to infant or breast milk to reduce lactose content reduce the hours of crying safe from birth sugar free colief colief infant drops are a registered trademark of crosscare ltd patent no 1289569 colief infant drops transient lactase deficiency can result in the temporary digestive discomfort caused by undigested lactose in food this can be an important factor in some babies with colic colief may help reduce the hours of crying by breaking down the lactose in