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However, the summary near the top of the page describes a broader company standard of at least 98.5%
Product Details Available options 50mg, 100mg Format Lyophilized powder only Availability Available for eligible ordering Research Use For controlled laboratory research use only
Missing testing method If the COA doesnt specify the testing method (e.g., HPLC), theres no way to know how purity was measured or whether the method is reliable
Most people get 1000 mcg (1 mg) of B12 once or twice a week
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