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Press release, December 11, 2025
Send an inquiry form See our COA process Research applications NNMT-enzyme inhibition and metabolic-regulation research models Adipocyte-metabolism and energy-balance studies NAD+ / methylation-pathway research Comparative studies against reference metabolic compounds Listed for research context only Certiva makes no medical, therapeutic, or dosing claims
Vitamin D: Supports immunity and bone health, especially for those with limited sun exposure
It can also promote more beneficial sleep, fight depression, stimulate hair and nail growth, and improve blood circulation
High-dose oral B12 (1,000 to 2,000 mcg daily) can actually correct deficiency even in some people with poor absorption, because a small percentage of B12 is absorbed passively (without intrinsic factor)
( Click here to learn how to do that
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