Enfamil Optimum (Enspire) Infant Formula
Introducing Enfamil Optimum, formerly known as Enfamil Enspire Optimum—now with a fresh new look in a new ready-to-feed format.
Enfamil Optimum is designed to be our closest formula to breast milk, it has two of the most abundant HMOs.
Perfect for combo feeding, Enfamil Optimum is ideal for supplementing breastfeeding, ensuring your baby gets essential nutrients while providing parents with convenience and peace of mind.
Enfamil Optimum has 2'FL & LnNT, two of the most abundant HMOs that are naturally present in breastmilk, to nourish their immune health.
With NO artificial growth hormones, NO artificial colors or flavors, and a NON-GMO* formula, Enfamil Optimum has complete nutrition for babies through 12 months in a convenient format, perfect for night-time feeds! Give your baby the best start with Enfamil—trusted by parents†, backed by science.
*Not made with genetically modified ingredients, but trace amounts of genetically engineered materials may be present in the product from manufacturing environments and process sources.
†Among those who have a preference; based on the 2023 survey by AMC Global.
Available Formats and Sizes
Enfamil Optimum Infant Formula is available in ready to use format in 32 fl oz bottles that can be purchased individually or in cases of 6. This format does not have lactoferrin added as ingredient.
nutrients
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Please refer to your product packaging for the most accurate information.
Last Updated: 3/14/25
Your baby's health depends on carefully following the instructions below. Proper hygiene, preparation, use and storage are important when preparing infant formula. Use as directed by your baby's doctor. Ask your baby's doctor about the need to boil clean feeding accessories in water before use. Inspect each bottle for signs of damage.
Wash hands thoroughly with soap and water before preparing feeding bottles.
SHAKE BOTTLE WELL, remove protective seal around cap, remove cap and foil seal. Replace cap.
Pour into feeding bottle(s).
WARNING: Do not use a microwave oven to warm formula. Serious burns may result.
Failure to follow these instructions could result in severe harm. Opened bottles and prepared formula can spoil quickly. Either feed immediately or replace cap and store in refrigerator at 35-40°F (2-4°C) for no longer than 48 hours. Do not use if opened bottles or prepared formula have been unrefrigerated for more than a total of 2 hours. Do not freeze. After feeding begins, use within 1 hour or discard.
Storage: Store unopened bottle at room temperature. Avoid excessive heat. Do not freeze.
USE BY DATE ON SIDE OF BOTTLE.
DO NOT USE IF PROTECTIVE SEAL AROUND CAP, OR IF FOIL SEAL UNDER CAP, IS DAMAGED OR MISSING.
Last updated: 11/6/25