How do I enter a lot number in the search field?

  • Impacted lots will start with a 22 through 37 excluding the leading alphanumeric character - Example: L31465SH00
  • Only one lot number can be searched at a time
  • Locate the lot number on the bottom of your container
  • Enter the first 7 characters of the lot number in the lot search field 
  • If the lot number on your container starts with a letter it represents a lot sold internationally – please exclude the leading letter when entering the lot number
  • If the lot number entered in the lot search field starts with a letter you will receive an error message to ensure your entry starts with a number
  • If the lot number entered in the lot search field is part of the recall you will be asked to enter additional information
  • If the lot number entered in the lot search field is not part of the recall you will receive a message that your lot number entered is not impacted 
  • If you are not able to enter the lot number and would like to speak with a customer service representative, if in the United States please call 1-800-986-8540 or if international please contact the number on the product label

Examples of containers indicating the characters to enter in the lot search field:

Product Lookup

How do I know if I have a product affected by the recall?

If you purchased or obtained your product in the United States, check the lot number with the lot locator at

If your product is not affected by the recall, no action is necessary and you can continue to use it.

What do I do if my product is affected by the recall?

If your product is affected by the recall, do not use it and go to for a refund or replacement, depending on how the product was acquired or the type of product. You should seek safe, alternative feeding options and talk to your pediatrician or healthcare provider. You can also call Similac customer service at 1-800-986-8540.

Is my product contaminated?

No distributed product has tested positive for any bacteria, and we continue to test.

How does Abbott ensure the safety of its infant formula?

Abbott conducts extensive quality checks on each completed batch of infant formula, including microbiological analysis, prior to release. All infant formula products are tested for Cronobacter sakazakii, Salmonella Newport, and other pathogens — and they must test negative before any product is released.

What is Cronobacter sakazakii?

Cronobacter sakazakii is a bacteria that in rare instances can cause illness in young infants and the elderly. It is found naturally in the environment, including soil, water, in foods and in the home environment. It can be found in or on household surfaces, including those used for food preparation. It’s important to follow instructions for proper preparation, handling and storage of infant formula.