and IsoPure Unflavored Whey Protein Isolate (16oz) First, collagen peptides refer to collagen that is broken down through a process called “hydrolysis” while collagen is the whole protein.

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“That makes it one of the leanest options, meaning it usually comprises of upwards of 90 per cent protein content.” Whey hydrolysate is whey protein that’s been put through hydrolysis.