We do not want to become so precisely quantitative because the relative merits will vary, not only in terms of their potential compared to one another but their appropriateness for one individual recipient compared to another, as that introduces another set of variables to make it difficult to be to cut and dried in assigning preference. So as a general rule of thumb, we see the Advanced Collagen Plus edging out the Vital Proteins Collagen Peptides, and the California Gold Nutrition's CollagenUP a close third in rank.
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