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 I love this product My daughter dont spit up as much as she was on simliac advance
Date published: 2017-08-17
Rated 5 out of 5 by from Love this Formula Both my boys have had a rough time with Formuals and when we switched to Similac Soy they were completely different babies and we couldn't be more happier ❤️
Date published: 2017-08-17
Rated 5 out of 5 by from Great product Definately recommend this formula
Date published: 2017-08-03
Rated 5 out of 5 by from Like day and night... Proud new Mom supplement feeding a beautiful baby girl, while in the hospital she was drinking Pro Sensitive Similac formula, we continued the regimen of every other feeding; changing between that and breastfeeding. Long story short my husband and I noticed she was fussy and constipated and had a terrible times with BM's when she was able to. We grew very concerned about the effects this had on her so we asked the doctor what we could do to help alleviate the situation. She recommended to switch to a soy based milk and gave us a few sample cans and within a day noticed a night and day difference with our babygirl. She was no longer fussy and has not been as gassy. Thank you.
Date published: 2017-07-29
Rated 5 out of 5 by from Happy Baby, Happy Life Changing my son's formula from Advance to Soy was like Night and Day with him. Lactose Allergies are quite common in his genetics. Love SIMILAC SOY
Date published: 2017-07-25
Rated 5 out of 5 by from It's AMAZING My son started out on Similac in the blue can which made him very constipated. So we switch him to Similac Soy and it is AMAZING! No more constipation.
Date published: 2017-07-22
Rated 5 out of 5 by from Best Option For Our Baby After 36 hours of our baby crying after taking each sip and then spitting up everything in his bottle at the hospital as a newborn, soy was a last resort for us (while in he hospital). With the first sip, we knew that this formula was going to be the one. Thank you Similac for creating such a great product and for making our baby boy happy!
Date published: 2017-07-21
Rated 3 out of 5 by from Gave my baby terrible gas and constipation My son is 3 weeks old and has colic due to milk allergies. I tried this formula to help relieve his tummy problems with feeding. It made him worst. The formula gave him terrible gas and made him constipated. Now I'm lost on what formula to try next.
Date published: 2017-06-29
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