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Supplied as a lyophilised powder in a sealed laboratory vial, third-party HPLC-verified to greater than 99% purity, with a batch-specific Certificate of Analysis available on request
However, if you have a B-12 deficiency, correcting low folate levels may simply mask the deficiency and fail to fix the underlying problem
Storage: Lyophilized powder frozen at 20 C (4 F)
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