Do supplements expire? Yes. In practice, supplement expiration dates are set by manufacturers to indicate the period during which the product is expected to retain its labeled quality. A quick look at the expiration date helps you understand how long the product is likely to stay within its stated characteristics. This page focuses on supplement expiration dates, with practical guidance on reading dates, storing properly, and knowing when to discard so you stay informed and safe. Understanding the dates on labels helps you interpret what you see on a bottle. Look for terms such as EXP, expiration date, or best by on the container, and note the year and month. Some products also show a manufacture date or a batch/lot code. In general, “best by” or “manufactured on” dates imply different things than a strict expiration date. The important part for supplement expiration dates is that the date reflects the period during which the product is expected to maintain its labeled quality; after that date, the quality may begin to decline. Storage plays a big role in preserving quality. Keep supplements in their original containers with the cap tightly closed, stored in a cool, dry place away from direct sunlight. A cabinet or pantry shelf is often ideal; avoid bathrooms or other humid areas. If the label calls for refrigeration or protection from light, follow those instructions. Keeping products away from heat, moisture, and strong temperature fluctuations helps preserve quality for as long as the supplement expiration dates indicate. When to discard is the practical conclusion. If a product is past its expiration date, or if the container is damaged, the seal is broken, or there are visible changes such as color, texture, or odor, consider discarding it. Also discard if the supplement has been exposed to moisture or heat outside of what the label allows. For disposal, follow local guidelines for household items and packaging, and avoid flushing or pouring it down the drain unless the guidelines say it’s appropriate. Regularly checking supplement expiration dates helps you stay informed and safe.