How Long Does Vitamin B12 Last?
Quick Answer
Vitamin B12 lasts 2-3 years when unopened. Once opened, it should be used within 6-12 months.
Shelf Life by Storage Condition
| Storage Condition | Duration |
|---|---|
| Pantry (Unopened) | 2-3 years |
| Pantry (Opened) | 6-12 months |
| Refrigerator (Unopened) | 2-3 years |
| Refrigerator (Opened) | 6-12 months |
| Freezer | Not applicable |
How to Tell If It Has Gone Bad
- Change in color or appearance of the tablets or liquid
- Unusual or foul odor
- Crumbled or excessively brittle tablets
- Visible mold or moisture inside the container
Proper Storage Tips
- Store in a cool, dry place away from direct sunlight
- Keep the container tightly closed when not in use
- Avoid storing in areas with high humidity such as bathrooms
Risks of Using Expired Vitamin B12
Using expired Vitamin B12 may result in reduced potency, leading to insufficient supplementation and potential worsening of deficiency symptoms. While it is unlikely to cause direct harm, degraded products may be less effective and could delay proper treatment.
Get an Expiration Reminder
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Frequently Asked Questions
How long does Vitamin B12 last?
Vitamin B12 typically lasts 2-3 years unopened and about 6-12 months after opening when stored properly.
Does Vitamin B12 expire?
Yes, Vitamin B12 supplements have expiration dates after which their potency may decrease.
How can you tell if Vitamin B12 has gone bad?
Signs include changes in color or texture, unusual odor, crumbling tablets, or visible mold.