I have been using Vital Protein Collagen Powder for several years. It's hard to say for sure, but I feel like it's helping my hair and skin as well as some of the dry eye issues I've been having. Take all of this with a grain of salt. I bought this protein powder for my wife to use in her morning shakes. I love the fact that it blends whey protein with high quality collagen. Read for yourself, but I've found several studies showing that mixing collagen peptides/amino acids with other proteins has significant health benefits. The product tastes great and goes well with your smoothies. It might be a bit more expensive than some of the lower quality protein powders you might get, but I think the high quality combined with the collagen blend makes it worth it.
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