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Manufactured for laboratory research
Research-grade quality standards require 99%+ HPLC-verified purity with batch-specific Certificates of Analysis from independent third-party laboratories
The full dose may be taken once in the morning on an empty stomach, or split into two to three daily doses throughout the day, each on an empty stomach
HPLC shows the chromatographic profile used for purity review
For background and my updated recommendations, see my extended look at vitamin B12 in the related posts below
The FDA classifies it as requiring further investigation
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