creatine
Micronized Creatine Powder
Optimum Nutrition provides a high-quality, single-ingredient micronized monohydrate that meets the clinical dosage of 5g. While it is third-party tested via Informed Choice, it misses the Gold tier because it no longer utilizes the Creapure® trademarked source and lacks public batch-specific COAs, all while carrying a higher brand-name price premium compared to identical bulk generics.
Sources & References
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Thorne
Basic Nutrients 2/Day
NSF Certified for Sport. Uses bioavailable forms (methylfolate, methylcobalamin, chelated minerals). No unnecessary additives. Trusted by Mayo Clinic and Olympic teams.
Pure Encapsulations
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
Ultimate Omega
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.