>>76386599
Not really. Just pick one that you like the flavor of and/or dissolves well. You can pay like 3 times as much for some powder that added in specific amino acids, but whey is already pretty much S tier AA profile anyway. The only other thing to look out for is safety testing for shit like heavy metals, but even brands that had 3rd party testing to be "pure" get retested by some website later down the line and find they have trace amounts like most mainstream brands.