Supplements › Vitamins › Douglas Labs Vitamin B12
Vitamin B12
Vitamin B12 looks solid; one or two ingredients could be dosed higher to be a standout.
Ingredients by dose
What's actually in it, ranked by how well it's dosed against research thresholds.
What it does
Evidenced benefit intensity, derived from dosed ingredients — not label claims.
The receipt
Every point of this grade, traced to the ingredient, its dose, and the evidence.
Vitamin B12 at 2500 mcg — clinical dose
At or above the ~1000 mcg where the research is strongest. NIH ODS: corrects deficiency (common in vegans, older adults, metformin users); benefit only if low. No established UL.
Pros & cons
The honest tradeoffs.
- Vitamin B12 at a clinical, research-backed dose (2500 mcg)
Best for
Goals it fits, when to take it, and interaction flags.
Cheaper equivalent
Same category, equal-or-higher grade, the same key ingredients at clinical dose — for less per serving.
B WeCare Vitamin D3$12
save 33% / serving B Nature's Sunshine Vitamin C
$16
save 11% / serving
Where to buy
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Educational only. Not medical advice. These statements have not been evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease. Grades reflect published effective-dose ranges and label transparency — they do not test the product. Consult your healthcare provider before starting any supplement. Sage + Stone takes no money from graded brands. Ingredient data for this product was imported from a public label database and may be incomplete.