If your lot number is showing as invalid in our expiration checker tool, please check the following:
- Make sure you're entering the lot number exactly as printed on the product box — include all letters, numbers, and dashes. (Double-check that you haven't mistaken the letter "O" for the number "0" (zero), or vice versa. (Notice the letter "O" is slightly wider and more round than the number "0")
- Double-check that you are not entering a UPC code, serial number, or any other number.
- Avoid extra spaces before or after the lot number.
(Typical lot number as it appears on the back of the box)
If you’ve confirmed these and still get an invalid result, please contact us with:
- A clear photo of the lot number on your product
- Product name
- Place of purchase
📞 Phone: 1-855-816-7705
📧 Email: support@ihealthlabs.com
We’ll verify your lot number and assist you.