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Similac Pro Sensitive Vs Similac Sensitive: The Comparison

Similac is one of the most trustworthy brands when it comes to baby formulas. Their formulas are great especially if your baby deals with digestion problems.  Similac Sensitive and Pro Sensitive are prepared with the baby’s digestion sensitivity in mind.  

But which one should you buy among these two and how to know which one serves the best for your baby? That’s why today we brought the real comparison between these two formulas. Similac Pro Sensitive vs Similac Sensitive– if you are confused on which one to buy, we got your back.

If you want to know in short, then, Similac pro sensitive works best for creating and developing immune support. On the contrary, Similac sensitivity will serve your best purpose if you want to get rid of your baby’s fussiness from gas. But there’s more to the comparison depending on different factors. Let’s get to know about those:

Similac Pro Sensitive Vs Similac Sensitive

Even though these two formulas are from the same reputed brand, However, choosing between the two can be pretty confusing. So, here is a side-by-side comparison between the two in order to help you choose the best formula for your baby.


Similac Pro Sensitive

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Similac Sensitive

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Similac Pro sensitive formula is pretty close to Similac Sensitive. However, it contains both probiotics and OptiGRO special blend, which is in other words, a blend of DHA, vitamin E, and lutein.  

The specialty of their formula is that it has HMO (Human Milk Oligosaccharide), which is a probiotic naturally found in breast milk. 

The formula of Similac is pretty standard. While both the formulas are created with the baby’s digestion problems in mind, Similac Sensitive does not contain probiotics, which are extremely beneficial for gut health. However, both the formulas contain a special blend containing DHA, lutein, and vitamin E. 
Similac Pro Sensitive has slightly less sugar compared to Similac sensitive, around 10.9 grams. The difference is in other nutritional values is, however, pretty negligible.  The nutrition value-wise both of the formulas are comparatively similar. However, Similac Sensitive has slightly more sugar compared to Pro Sensitive, which is around 11.1 grams. 
Similac Pro Sensitive has lesser lactose content compared to Similac Sensitive, which is less than 2%.  In the case of lactose, there is also a slight difference. Similac Sensitive contains a bit more lactose compared to its alternative. 
Similac Pro Sensitive may contain genetically modified components. Similac Sensitive has a non-GMO tag which means it does not contain any genetically modified component.
Similac Pro sensitive is a bit more costly. A similar-sized can of Pro Sensitive costs around 36.96 dollars.  One of the key differences between Similac Sensitive and Pro Sensitive is their price tag. Sensitive is a little bit cheaper than Pro Sensitive.  A 29.8 oz can of Similac sensitive baby formula costs around 32.54 dollars. 
This is extremely good for digestion and the immune system of your baby. However, some babies may face difficulty digesting HMO. Similac-sensitive infant formula is specifically made to deal with your baby’s fussiness from gas.

Verdict: if you want to know from us about Similac Pro Sensitive vs Similac Sensitive, then we must say that in case of improved immunity, we would go for Similac Pro Sensitive. But if the baby has digestion-related problems, then we would switch to Similac Sensitive without a delay.

Similac Pro-Sensitive Infant Formula

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Number one for immune support

It is the first infant formula made for sensitive babies that contain 2’-FL HMO. This is based on the pediatrician recommendations and a survey by IQVIA ProVoice that lasted for 12 months and ended in February of 2020. 2’-FL HMO in Breast milk is in large quantities and is very important for immune support.

Non-GMO formula

The Pro-sensitive formula contains no artificial growth hormones, unlike the standard formula. This is why it is called a non-GMO formula. Formulas that are non-GMO are very much safe for your child. Besides this, the formula is also free of palm oil.

Contains a perfect amount of nutritions 

Similac has mixed in a healthy quantity of calcium into the formula. This calcium will be good since it supports the baby’s strong bones and will help keep them at their best. The formula is designed to help with the development of your baby’s eyes and brain. It contains a blend of DHA, Lutein, and Vitamin E which help with the development tremendously. 

Comes in different sizes

As mentioned, this is convenient because you can buy a package that is suitable for your personal condition. If you are traveling you can carry a smaller pack but if you want to buy a larger size that can last you a month then that is also possible. There is a value size that can provide 55% more formula than the 1.41-1lb container. For this, you would need to subscribe to the official page.

Good for sensitive babies 

The formula is for babies with fussiness caused by lactose sensitivity. If your baby is not comfortable with the sensitive formula you can give this try. This formula is only different because of its added nutrients. 


The taste of the formula is much milder than the sensitive formula. The smell is also not very strong so that might come in handy if your baby is not okay with stronger formulas.

So, you can consider these points before choosing which to get for your baby.  Although you should remember that you’re the formula that fits someone else’s baby might not suit yours.


  • The formula is made gluten-free if you were concerned.
  • Helps in Brain and Eye development
  • This formula is very much trusted
  • This formula is used by hospitals all over the USA. 


  • This formula is a bit more expensive than the standard formula


Similac Sensitive Infant Formula

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Specifically made to deal with your baby’s fussiness from gas 

This gas and fussiness are caused by lactose sensitivity. If your baby is not more than 12 months of age, you can give the formula a try. There is a possibility this may not fit your baby but that’s only because the formula is for babies with mild issues. If your child experiences more discomfort it is best to contact a doctor.

This formula is milk based 

Similac-sensitive infant formula is very similar to breast milk. It is also the first leading formula without any artificial growth hormone. This means that there weren’t any notable differences between this formula and both rbST-treated and non-rbST-treated cows’. All this while still providing your baby with the much-needed nutrition they need in their first year.

Gentle on sensitive stomachs

The formula of Similac sensitive consists of protein isolates instead of milk. This means that the lactose has been removed from the formula. This is why it is very gentle and so perfect for lactose intolerant babies.

Has various sizes and forms for convenience

Similac provides a large variety in the sizes of its product. This is good because you can buy larger containers if you are solely formula feeding but if you are not you can buy the smaller ones. The product does need to be used within a month of the opening so you should buy them accordingly.

Nutritional Ingredients 

When the ingredients list is compared with Similac’s standard formula you will be able to see obvious differences. The standard one has nonfat milk and lactose while the sensitive formula one has milk protein isolate and corn syrup. Corn syrup is added to replace lactose and this isn’t a big concern. Corn syrup has glucose which is the main source of energy in your body.

Fewer Expenses 

All infant formulas tend to be quite expensive and that applies for Similac too. The price of Similac sensitive is actually the same as the standard formula. This means that you don’t have to spend more money to get a different formula only because your baby can not handle the standard one. Besides, the packaging comes with clear instructions on how to make the liquid and also has a scoop to help with measurements.


  • It is very easy to use 
  • Comes with clear instructions of preparation 
  • Comes in a large variety of the sizes 
  • Best for your baby’s digestion problems 


  • This formula does lead to some babies being constipated
  • The odor or taste is stronger than other brands 

Is Similac better compared to other brands?

Similac has been trusted by mothers for more than 90 years.  Aside from that, the brand is known for adding no artificial growth hormones to its formulas in order to ensure the natural and healthy growth of your baby. They are also the first brand to add 2′- FL HMO (Human Milk oligosaccharide). This is basically a probiotic which helps your baby’s gut health and boosts the immune system. 

Their formulas are also rich with all the necessary minerals and vitamins, like, Calcium, Magnesium, Phosphorus, Zinc, Iron, Copper, etc. Calcium helps with stronger bones for your baby. Besides, all their formulas have Iodine, which is crucial for your baby’s health. Iodine is a mineral that helps the production of thyroid hormones in the human body, which is a very vital hormone of the body, as it helps to control the body’s mechanism.

In infants, it is particularly important for their brain development and bone health. Aside from all that, Similac formulas also have Carotenoids, which are close to the ones found in breast milk. Their formulas provide lutein, DHA, and vitamin E for the overall development of your baby.  While many of these features might be present in other brands as well, Similac certainly is the pioneer in the case of innovative and healthy formulas.

Frequently Asked Questions:

What are the ingredients of Similac Pro sensitive?  

The primary ingredient of Similac pro sensitive is Corn syrup.  Some of the key ingredients are Sunflower oil, Soy oil, milk-derived protein, coconut oil, 2′- FL human milk oligosaccharide, etc. Aside from that, it also contains all the necessary minerals and vitamins needed for your baby’s health which includes, Sodium Citrate, Calcium Phosphate, Potassium Citrate, Soy Lecithin, Inositol, Magnesium Phosphate, Ascorbic Acid, Choline Chloride, Ascorbyl Palmitate, Ferrous Sulfate, Choline Bitartrate, Taurine, Calcium Carbonate, Zinc Sulfate, etc.

What are the ingredients of Similac sensitive?  

The Ingredients of Similac Sensitive are quite similar to Similac Pro Sensitive. However, Similac sensitivity does not contain HMO. Otherwise, the rest of the ingredients are pretty similar. The key component of its formula, just like Pro Sensitive, is corn syrup.

Other ones include Milk Protein Isolate, High Oleic Safflower Oil, Sugar, Soy Oil, Coconut Oil, Galactooligosaccharides. Less than 2% of C. Cohnii Oil, M. Alpina Oil, Beta-Carotene, Lutein, Potassium Chloride, Sodium Citrate, Calcium Phosphate, and many others.

Are lactose-free formulas better? 

Lactose-free formulas are suitable for babies with lactose intolerant. Although lactose intolerance is quite rare in babies under three, babies who are born prematurely tend to develop a unique kind of lactose intolerance termed “Developmental lactose deficiency”. However, this type of lactose sensitivity is usually short-lived and lasts only for a short period after birth. After that, babies usually can consume lactose without issue. 

Another type of intolerance, which is found in infants is known as Congenital lactose intolerance.  This is a very rare disease, in which babies have trouble breaking down the lactose found naturally on breast milk or in regular formulas. Lactose-free formulas are specifically made for babies with lactose sensitivity.  So, if your baby does not have lactose intolerance, there is no need for a lactose-free formula.

Wrapping Up

We have given the detailed comparison and difference between Similac Pro Sensitive vs Similac Sensitive. Hopefully, by now you have been able to decide which one is appropriate for your baby and why. Apart from the differences, both formulas are equally effective for your baby. But due to some intolerances of the babies, you can pick any one of these.

No matter which one you choose, both the formulas are incredible for your baby’s health and well-being. If you are still hesitant, you can seek suggestions from your baby’s pediatrician. Also, make sure that your baby is not intolerant of any of the specified ingredients, if he/she is, then try to avoid that specific formula. Good luck!

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