Enfamil Optimum (Enspire), Our Closest Formula to Breast Milk, Immune-Supporting Lactoferrin and Brain-Supporting DHA Baby Formula, Powder 20.5 Oz Tub

TLDR Review: Enfamil Enspire Optimum

Published: March 24th, 2025

Pros

  • Successfully transitioned from breastfeeding to formula after 6 months of exclusive breastfeeding.
  • Baby showed excitement and enjoyment while drinking this formula compared to others.
  • Met baby's nutritional needs effectively, especially during breastfeeding challenges.
  • Highly recommended for mothers seeking a smooth transition from breastfeeding.
  • Effective for supplementing breastfeeding when the mother's supply is insufficient.
  • Baby adapted easily with quick weight gain and fewer gastric issues like spip or colic.
  • Positive impact on baby's jaundice symptoms was noted within days.
  • Closely mimics breast milk, making transitions smoother and more palatable.
  • Minimal issues and notable satisfaction in switching from breast milk.

Cons

  • Experienced an allergic reaction, leading to eye swelling and an emergency room visit.
  • Caused severe reactions in some babies, raising safety concerns.
  • Parent advised against its use in breastfed babies due to potential severe reactions.
  • Led to constipation and discomfort in some cases, requiring a switch back to previous formula.

Bottom Line

Enfamil Enspire Optimum, 20.5 Ounce, appears to be a reliable choice for parents seeking an infant formula that supports the transition from breastfeeding with nutritional adequacy. However, while it has been positively received for its breast milk-like formulation and effective supplementation, there are significant reports of allergic reactions and digestive issues. Exercise caution and consider consulting healthcare professionals if your baby has a sensitive digestive system or known allergies.

Lowest at any Popular Retailer
$17.92 at Walmart
How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 32 retailers to give you the short version.

Where to Buy

Prices last updated: May 16th 2026 5:35 pm
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