Quality
What a lot COA shows (and what it doesn’t)
A Certificate of Analysis (COA) is a lab report for one batch (lot) — not a forever badge for the brand.
What it usually reports
For VitaminLoft™ Magnesium Glycinate, lot COAs can report magnesium content and heavy-metal / microbiological testing for that named lot. Example on file: lot MGL250923 (that lot only — not every future bottle).
See Quality & COAs.
What it doesn’t mean
- Not NSF / USP / “clinically proven” claims we don’t have
- Not a substitute for reading the panel (form + elemental mg)
- Not proof of every bottle forever — ask for your lot
How to get yours
Email support@vitaminloft.com with your order or the lot on the bottle. We’ll send the matching PDF when we have it.