Aptamil Vs Similac – DIFFERENCES? Best One?

aptamil and similac comparison

When it’s time to choose a nutritious baby formula for your little one, finding the ideal option can be challenging. Two of the top brands that often make it to parents’ shortlists are Aptamil vs Similac

Aptamil is made by French dairy giant Danone in New Zealand. Similac on the other hand is made by Abbott Nutrition in the U.S. and is exported all around the world. Both brands are popular with parents and both contain the nutrients and probiotics to ensure healthy development. 

What are the main differences between Aptamil and Similac?

Aptamil and Similac are reputable brands that contain the required vitamins to provide your baby with the necessary nutrients. Similac is used in hospitals for newborns while Aptamil is great for allergies. Both provide relief for colic and Similac’s range with iron is popular for extra nutrition. 

Comparison Table: Aptamil vs Similac

Despite both these brands being very credible, it helps to see a side-by-side comparison when you’re narrowing down choices. 

Key nutrientsVitamin C, B1, B2Niacin (B3)FiberProteinCarbohydratesCalciumMagnesiumIronVitamin A & CCalciumIronProteinCarbohydratesPotassium Sodium
Probiotic contentBifidobacterium Breve M-16v which promotes healthy developmentContains a unique probiotic – 2’-FL HMO similar to the ones found in breast milk
AgeBirth to toddlerBirth to 12 months
Reduce colic symptomsYesYes
ConsistencySpecially thickened to keep formula downResembles the consistency of breast milk

Aptamil vs Similac – Similarities and Differences 

While Aptamil and Similac both make formulas that provide the proper nutrition your baby needs, there are a few differences to consider. Both brands meet the necessary FDA requirements. I’ve discussed a few of these below to give you an objective view of both. 

Side Effects

It’s important to consider the side effects experienced by other babies to establish if it’s the ideal option for your baby.

  • Aptamil: Many parents have reported instances where Aptamil gives their babies upset tummies. 
  • Similac: There have also been reports of constipation or upset tummies with Similac. This often happens when babies change the formula and usually disappears as your baby’s body adjusts to the formula. 

Probiotic Content

Probiotics are necessary to ensure your little one has a healthy digestive function and reduces reflux. 

  • Aptamil: This formula contains age-appropriate nutrients to support overall growth and development. The most common probiotic in Aptamil is Bifidobacterium breve M-16V. 
  • Similac: Often used in hospitals, Similac contains a wide range of prebiotics and probiotics that supports brain and eye development. 

Colic Symptoms

Many babies suffer from the effects of colic symptoms. In addition to anti-colic bottles, having a formula that aids in reducing these symptoms.

  • Aptamil: The Aptamil Gold+ Colic & Constipation range contains ingredients that easily reduce episodes of colic. It also helps with bouts of constipation
  • Similac: The Similac Alimentum range reduces colic symptoms created by protein sensitivity in most babies within 24 hours. The milk protein is broken down into smaller, easier-to-digest pieces


While Aptamil isn’t as well-known as Similac, it’s inspired by 40 years of research for baby formula. Made using a unique blend of ingredients, this formula is suitable from birth to toddler stages. This formula is great for treating allergies and intolerances. 

Available Aptamil formula products 

Aptamil has three main formula ranges which include the following:

Why consider it

Many parents find Aptamil a good option because its specialist range caters to babies suffering from feeding issues or allergies. One of their formula types helps with colic, constipation as well as babies suffering from lactose intolerance. Since this formula also contains Omega-3 and a variety of vitamins, this formula is excellent for supporting a healthy immune system. 


  • Texture and taste similar to breast milk
  • Ideal for newborns
  • Brand feature powder and liquid options
  • Contain natural prebiotics
  • Contains natural nutrients that support growth


  • Generally more expensive than other brands
  • Not suitable for vegetarians as it contains fish and soy
  • Not an organic formula
  • Brand isn’t certified
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Similac is very popular among parents for several reasons. For starters, it’s one of the top brands recommended by pediatricians. Aside from regular formula options, there’s also a hypoallergenic option for babies with protein sensitivity. 

Available Similac formula products 

Similac has a few options to choose from. These include the following:

  • Similac Pro-Total Comfort Infant Formula with Iron: This formula is rich in iron and 2’-FL HMO which is a prebiotic similar to the ones found in breast milk. Additionally, the formula also contains an exclusive blend of vitamins that support overall growth.
  • Similac 360 Total Care Sensitive: Boasts an exclusive blend of prebiotics and vitamins best suited to providing your baby with all the nutrition value needed. Suitable for sensitive tummies, and aids with colic symptoms. 
  • Similac Alimentum Hypoallergenic Formula: Hypoallergenic formula reduces excessive crying related to protein sensitivity within 24 hours. Since it’s easy to digest, it’s easy to digest. 

Why consider it

One of the more impressive features of Similac is that it contains OptiGro which supports the rapid development of your baby’s brain and eyesight. It also works well in reducing common colic symptoms such as gas, reflux and spitting up. 

Similac Advance with iron helps babies to stay strong and healthy. There’s also a range of flavors available for babies who don’t enjoy the regular flavor.


  • Trusted brand, often used in hospitals
  • Offers a baby-friendly taste
  • Consistency is natural-looking and resembles breast milk
  • Features OptiGRO – blend of nutrients found in breast milk
  • Well priced & available online and in stores
  • Suitable for vegetarians


  • Sells out quickly in stores – not readily available
  • Has been known to cause gas
  • Online buyers have reported receiving damaged packaging
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Here’s a short clip to show you how easy it is to make a bottle of formula using your favorite Silimac range. 

Is Aptamil better than Similac?

Essentially, one brand isn’t better than the other. It comes down to your baby’s needs. Aptamil is better if your baby has allergies. Similac on the other hand is used in hospitals and some babies seem to enjoy its taste. Similac has a hypoallergenic option which is great for protein sensitivity!

If you’re still researching potential options, read my article on Similac Sensitive versus Enfamil Gentlease. It will provide you with some additional information. Another article worth reading to help you choose the perfect formula is Gerber Gentle or Soothe or Soothe Pro compared to Enfamil Gentlease.

Last update on 2024-05-05 / Affiliate links / Images from Amazon Product Advertising API

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