My daughter is extremely lactase difficient. We have tried other forms of lactase but the drops are a miracle for her. We need to use more than one serving size, and it was our doctor who suggested we use more.
She doesn't do it often but now our daughter can enjoy pizza or ice cream while out and not worry about getting sick.
Works great my daughter can't eat ice cream with out getting upset tummy but with a doctor recommended dose she can eat as much as she wants with no problem. My granddaughters doctor recommended some for her also and helped with her colic