Haven’t used long enough to notice a change in baby yet, however I’m not sure I love the syringe. Baby doesn’t like it being squirted in his cheek so I have to sneak it in while he’s nursing. It’s difficult to push slowly and I find I’ve been sphlashing it everywhere. We previously used a drop and that would be so much easier. I’m sticking it out because I really want to love this product. I do love that’s there are no other ingredients. Here’s to benefits outweighing my 1 complaint!!!!