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https://docs.google.com/document/d/1lA2zk-NBNxtlaeC9yxOkI5CzbQgbGeh3Vw7c2sl-TTs/pub?
<p class="p__0">"Aside from grass-fed bovine collagen, Critical Proteins incorporates Vitamin C to their particle to boost collagen absorption."" The bovine collagen in this antibiotic-free particle is sourced