Reading an expiration date on a supplement

This check covers US labels. Start with the exact package and variant you have, then use the steps below. Explore more supplements checks.

What to look at

1. Look for a clearly identified expiration or best-by date.
2. Distinguish it from a lot or manufacturing code.
3. Ask the manufacturer if the meaning or storage conditions are unclear.

A little practice

Read this label.

Bottle shows LOT 2468 but no clearly labeled expiration

Illustrative excerpt · not a real product

Why this reading matters

Federal supplement labeling rules do not require an expiration date. A date, when supplied, is a separate piece of information from whether a product is appropriate for you. US Food and Drug Administration.

A supplement label gives ingredients and amounts, but it does not establish whether you need the product. Independent quality seals do not guarantee that a supplement is effective or safe for everyone. NIH Office of Dietary Supplements.

What the label cannot settle

Do not use this guide to conclude that an old or poorly stored product is usable.

Put the check to work

Compare the exact words and amounts on your package with the example. If a panel is missing, a photo is unreadable or the manufacturer has not disclosed a detail, keep that detail as unknown. A different flavor, shade or formulation needs its own check.

For the full reading method, use our supplements label guide. The medicines and supplements guide adds context for your needs.

A useful next check

• What Daily Value not established means
• Reading the serving on liquid supplements
• Comparing supplements with proprietary blends

Sources read and this label example reviewed on 2026-09-23. Examples are illustrative, not product tests or clinical reviews.