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 'o' (zero), or vice versa.
- 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.
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.