Hi, my son is 3 weeks old and was born via csection. I am thinking about starting him on probiotics, and my pediatrician said it wouldn't hurt to do so. Any brand recommendations?? I have heard of Florastor, Gerber Soothe and Primadophilus. Any thoughts on these or others? I am still breastfeeding so if it is in a powder format I am guessing I will just have to give it to him with some milk in a bottle.