collagen
Collagen Peptides
This product hits the gold standard for sourcing by using Grade A, grass-fed, and pasture-raised bovine collagen without unnecessary fillers or sweeteners. While it relies on general clinical research for hydrolyzed collagen rather than product-specific trials, its high dosage (11g) and rigorous third-party heavy metal testing offer exceptional value for the price point.
Sources & References
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Thorne
Basic Nutrients 2/Day
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O.N.E. Multivitamin
Hypoallergenic formula free of all common allergens. Metafolin (5-MTHF) for methylation. Sustained-release CoQ10. One capsule daily simplifies compliance.
Nordic Naturals
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IFOS 5-star certified for purity. Triglyceride form for 70% better absorption than ethyl ester. 1280mg EPA+DHA per serving. No fishy burps.
Carlson
Vitamin D3 2000 IU
USP verified for potency and purity. D3 (cholecalciferol) is the form your body makes from sun. Single ingredient with no fillers.