Similac® Soy Isomil®

Complete nutrition for sensitive tummies

Fussiness and gas can be a common part of feeding your baby.

Similac Soy Isomil is specially designed to comfort with the gentleness of soy to soothe the tummy.

Soy-based formulas have been clinically shown to help reduce feeding problems. No other soy-based formula has been studied more than Isomil.

Has OptiGRO to support your baby's brain and eye development.

If your baby’s fussiness or gas seems excessive, ask your physician about switching to Similac Soy Isomil.

Soy formulas are not recommended for premature infants with birth weights of less than 1800 g.

Similac Soy Isomil formula product for infants

Available In:

Similac Soy Isomil 1.45lb formula for infants 1.45-lb Powder

Similac Soy Isomil 12.4oz formula for infants 12.4-oz Powder

Similac Soy Isomil 32oz formula for infants 1-qt Ready to Feed

Nutrition Information

Powder / 1.45 lb

Serving size: 100 Cal (prepared as directed)*

Amount per serving

  • Calories:


  • Volume, mL:


  • Protein, g:


  • Fat, g:


  • Carbohydrate, g:


  • Water, g:


  • Linoleic Acid, mg:


Vitamins & Minerals

* Nutrient values are applicable when prepared as directed.

Similac® Soy Isomil®
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Rated 5 out of 5 by from Love this product This is a great formula. Will recommend it to everyone is see.
Date published: 2017-02-18
Rated 5 out of 5 by from Amazing! After 2 weeks of unsuccessful breastfeeding and supplementing with the milk based 'for supplementing with breastmilk' similac brand. We discovered our daughter was probably lactose intolerant like I am. We tried soy and she is a completely new baby it seems! The only problem is she is getting constipated now. We wish we could get a refund on the supplementing container because we only used a few scoops before we knew she couldn't have it. :(
Date published: 2017-02-10
Rated 4 out of 5 by from Great product My baby was on the advanced formula since birth; however she has had a problems with mucus and flem. My mom gave me soy as a baby because I had a lot of problems as well. So decided to switch to soy. She has been a lot happier and less flem and stuffed up nose. Plus she doesn't spit up as much. The smell isn't great but I don't like smell of any formula. Soy is a lot stronger earthy, protein smell.
Date published: 2017-01-27
Rated 4 out of 5 by from baby got constipated After trying a lot of different formulas I decided to give this one a try. Was desperate of having my baby crying inconsolably for hours with pain in her tummy, gas, colic and rashes on the skin.... From the first day I tried this one all those crying and painful moments went away but now she is getting constipated. Should I try the soy version from another brand? Don't know what's next....
Date published: 2017-01-25
Rated 5 out of 5 by from Definitely a must have This formula is a life saver. It is the only formula my daughter will use but she will only drink the liquid one. I wish it was not as expensive because buying the liquid one 3-4 times a week gets expensive. But this is the only one that works for her.
Date published: 2017-01-22
Rated 5 out of 5 by from I love the milk for my grandbaby This is very good for my grandbaby it helps with her little tummy and she doesn't fuss much anymore
Date published: 2017-01-21
Rated 5 out of 5 by from Worked like a charm! After trying numerous other brands I found that this one worked the best for my daughter. She had really bad acid reflux and since I switched her to this formula I have not had any further issues. This formula is a lot easier for my daughter to digest. I highly recommend this product to all moms! The only problem I have encountered is stores in my area do not carry this type in the travel size bottles.
Date published: 2017-01-12
Rated 5 out of 5 by from Great Product After trying 2 other formulas, this turned out to be the best for my little one.
Date published: 2017-01-05
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