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Collagen or whey protein?
One is for joints, skin, hair, and nails. One is for muscle. Most people are taking the wrong one, getting them confused, or just taking one when they should probably take both for what they say they want…

Collagen or whey protein?
One is for joints, skin, hair, and nails. One is for muscle. Most people are taking the wrong one, getting them confused, or just taking one when they should probably take both for what they say they want…