Along with my comments below; it is also very important to read a wealth of reviews about baby formula from a wide range of sources. It is important with all products used with babies to do plenty of research and also to be guided by health professionals that should be able to provide guidance.

I personally much preferred the aptamil gold plus. I was using this during COVID so oh my, it was hard to find where as the nan opti pro was more available in my area. I found the aptamil dissolved alot better and heated more evenly and my baby seem to settle alot easier

My son didn’t like Aptamil gold +, we gave it a try and he really didn’t take to it. Look for smaller sample packs so you can test them out before committing to anything

My daughter did a lot of research into baby formula when she had her first IVF baby and chose Novalac Colic and then moved to Bubs as it is an organic formula with fewer additives. I believe Aptamil Gold+ has added prebiotic/probiotic support and NAN Optipro is gentler on babies tummies. So many choices it does make it hard to choose.

Baby formula is no longer something we are across in our family; that stage has passed. When it was relevant to us we read reviews and we also went with recommendations from health professionals. It was very important to watch our children very carefully and monitor how they tolerated formula.