Enfamil A2 vs Gerber Good Start SoothePro (2026): Which Formula Is Better?

🍼 How Each Formula Approaches Gentleness

Enfamil A2 (~$35 for 27 oz) and Gerber Good Start SoothePro (~$32 for 30.2 oz) both market themselves as gentle alternatives to standard infant formula, but they use fundamentally different strategies. Understanding these strategies helps you make a targeted choice rather than guessing.

Enfamil A2 swaps the protein source. Standard cow's milk contains mostly A1 beta-casein, which some studies suggest produces a peptide (BCM-7) during digestion that may cause discomfort. A2 uses milk from cows that only produce A2 beta-casein — a different protein variant that doesn't produce BCM-7. The proteins remain intact and are paired with partially hydrolyzed nonfat milk, DHA, ARA, and HMO prebiotics.

Gerber SoothePro changes how the protein is processed. It starts with standard whey protein and partially hydrolyzes it — breaking the proteins into smaller fragments that are faster and easier to digest. SoothePro also reduces lactose content by 30%, adds the probiotic L. reuteri, and includes HMO (2'-FL) prebiotics. It's a multi-pronged formula built specifically for colic and fussiness.

💰 Price and Size Comparison

Gerber SoothePro actually offers better value per ounce than Enfamil A2, which is somewhat unusual since "gentle" formulas often carry a premium.

• Enfamil A2: ~$35 for 27 oz powder (~$1.30/oz). Available at Target, Walmart, Amazon, and most pharmacies
• Gerber SoothePro: ~$32 for 30.2 oz powder (~$1.06/oz). Widely available at the same retailers, often with Gerber coupons
• SoothePro gives you more formula for less money — about 18% cheaper per ounce than A2
• Both are available in powder form (most economical) and ready-to-feed (most convenient but pricier)

🔬 Ingredient-by-Ingredient Comparison

The nutritional profiles overlap significantly since both meet the same FDA requirements, but the details reveal meaningful differences in their approach to digestive comfort.

• Protein: A2 uses intact A2 beta-casein + partially hydrolyzed nonfat milk (casein-dominant). SoothePro uses 100% partially hydrolyzed whey protein (whey-dominant). Whey digests faster than casein, and hydrolysis accelerates it further
• Carbohydrates: A2 uses full lactose as primary carb. SoothePro reduces lactose by ~30% and supplements with corn maltodextrin — helpful for babies who are mildly lactose-sensitive
• Probiotics: SoothePro includes L. reuteri, a strain studied specifically for reducing crying time in colicky infants (one trial showed a reduction from 71 to 21 minutes/day). A2 contains no probiotics
• Prebiotics: Both include 2'-FL HMO, a prebiotic that mirrors a component of breast milk and supports beneficial gut bacteria
• DHA/ARA: Both formulas include DHA and ARA for brain and eye development at comparable levels
• Calories: Both provide standard 20 kcal/fl oz when prepared as directed

✅ Choose Enfamil A2 When...

A2 makes the most sense when you suspect the type of protein — specifically A1 beta-casein — is what's bothering your baby, and you want to keep the formula composition as close to standard cow's milk as possible.

• Baby has mild gas or fussiness on standard formula and you want to try switching the protein type first
• You prefer keeping full lactose in the diet — lactose is the dominant carbohydrate in breast milk and aids calcium absorption
• Baby doesn't have colic-level crying (more than 3 hours/day, 3 days/week) — just general discomfort
• Your family drinks A2 cow's milk and has noticed a difference — the same protein principle applies to formula
• You want a formula without added probiotics (some parents prefer to add probiotics separately if needed)

✅ Choose Gerber SoothePro When...

SoothePro is the stronger pick when your baby's fussiness involves multiple symptoms — colic, gas, and possible mild lactose sensitivity — since it addresses all three at once.

• Baby has colic symptoms: extended crying episodes, legs pulled up, clenched fists, inconsolable fussiness especially in the evening
• You want the probiotic L. reuteri included — it has the most clinical evidence of any probiotic for infant colic relief
• Baby seems sensitive to both protein AND lactose — SoothePro tackles both with hydrolyzed whey and 30% reduced lactose
• Budget matters — SoothePro delivers more formula per dollar than A2
• You want a formula with a faster-digesting protein — 100% whey clears the stomach faster than casein-dominant blends, reducing spit-up in some babies

🧭 A Practical Decision Path

Since both formulas are available over the counter and neither requires a prescription, the choice often comes down to trying one and evaluating results. Here's a practical approach.

• If the main symptom is gas or soft stools (not colic-level crying), try Enfamil A2 first for 5–7 days. It's the more minimal change from standard formula
• If the main symptom is colic with extended crying episodes, start with SoothePro — its combination of hydrolyzed whey, reduced lactose, and L. reuteri probiotic targets colic specifically
• If A2 doesn't resolve symptoms after a week, switch to SoothePro. The hydrolyzed protein may be what your baby needs
• If SoothePro doesn't resolve symptoms after 7–10 days, consult your pediatrician about moving to an extensively hydrolyzed formula — the issue may be more than standard gentle formulas can address
• Keep a feeding log during any formula trial: note stool consistency, gas frequency, crying duration, and spit-up episodes to give your pediatrician objective data