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TB-4 The July 23, 2026 PCAC recommendation covered TB-500, not the full-length TB-4 used in GLOW
Adenosylcobalamin functions in mitochondria as a cofactor for methylmalonyl-CoA mutase
Active B12: Each capsule provides 1 mg vitamin B12 as methylcobalamin, which is more efficiently used by the body compared to other forms of vitamin B12, like cyanocobalamin Heart & Brain Health: Supports a normal level of homocysteine in the body to benefit healthy cardiac function, blood cell formation, and optimal nerve function* Sleep Support: Helps maintain normal circadian rhythms to support restful sleep and supports healthy methylation processes in the body* Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)
But you deserve a thorough evaluation from someone who actually offers it, understands how it fits inside a complete treatment plan, and will tell you honestly whether it's the right call for you
