I am doing gerber soothe probiotic drops on him. And gentle ease have him terrible acidic diarrhea so bad that his little butt would break out and have specs of blood when wiping.

There are these drops called Gerber soothe drops.....OMG they're amazing. They saved my colicky son. I did those everyday and Similac advance.

I would just do regular straight up enfamil...they put so much stuff in all those its not good for them. They get constipated because they put gel in it to stop them from spitting up but it gets sick

What was his problem with the Gentle Ease?

My baby is on similac sensitive and she never had any issues :/ I was lucky tho. Maybe consult your pediatrician?