Whey isolate is more processed and contains more than 90% protein, but whey concentrate contains no other beneficial nutrients and is low in lactose and fat.
Whey hydrolysis is heat treated to break amino acid bonds and break down protein powders for rapid absorption. Gluten and gluten-free whey products can be contaminated by equipment exposed to gluten.
To avoid cross-contamination, make sure that the whey protein product you are buying is a gluten-free protein powder. Benefits of whey protein, whey protein for muscle building, and whey protein supplements primarily used by bodybuilders and athletes to build muscle and strength include: Essential amino acids in whey protein are the building blocks of muscle growth.
Source: https://www.ahealthblog.com/is-whey-gluten-free.html