NurtureBio is an infant synbiotic supplement that combines four clinically studied probiotic strains with five human milk oligosaccharides (HMOs) in a single daily sachet. It is designed for infants and toddlers from birth through 24 months and supports the same kind of microbial environment found in the guts of breastfed babies. You can learn more about how it is made on our formulation page.

NurtureBio is a synbiotic, which means it pairs probiotics (beneficial bacteria) with prebiotics that feed them. The five HMOs are the prebiotic part. This reflects how breast milk works, since breast milk delivers both beneficial bacteria and the HMOs that nourish them. Studies have shown that this pairing can support gut balance more effectively than probiotics on their own, because the HMOs help the probiotic strains settle in and thrive.

Yes, NurtureBio is designed for use from birth through 24 months. The probiotic strains have been studied for safety in infants, including in clinical trials with newborns. As with any supplement, we recommend talking with your pediatrician before introducing NurtureBio, especially if your baby was born prematurely or has a specific health condition.

NurtureBio is formulated for babies from birth through 24 months. The strain selection, HMO blend, and dosage are all designed for the developmental stage of infants and toddlers. After 24 months, your child's gut support can come increasingly from fiber-rich whole foods and a varied diet.

Yes, the formulation is designed for the delicate digestive systems of infants and toddlers. Clinical research on the strains in NurtureBio has shown them to be well tolerated, with no adverse effects observed in healthy babies. If your baby has a known condition affecting their digestion, please check with your pediatrician first.

If your baby has a confirmed cow's milk protein allergy, please talk with your pediatrician before starting NurtureBio. Milk is listed as an allergen on our packaging because the HMOs in our formula are produced through a fermentation process that begins with lactose, a sugar derived from milk. The finished HMOs do not contain milk protein, but allergen labeling regulations require us to disclose milk because the source material is milk-derived.

NurtureBio is made without soy, gluten, eggs, peanuts, or tree nuts, and it undergoes purity testing with every batch. Milk is listed as an allergen on the label because the HMOs are produced from a milk-derived source material. The finished product contains no milk protein, but labeling regulations require milk to be disclosed.

This is best discussed with your pediatrician. Probiotics are sometimes used alongside antibiotics to support the gut microbiome, but the timing and approach depend on your baby's situation. If you do continue NurtureBio during antibiotic treatment, a common approach is to give it at least two hours apart from the antibiotic dose. You can read more in our guide on how antibiotics affect baby gut health.

Yes, NurtureBio is safe to use alongside breastfeeding. Many parents add it to a daily bottle of expressed breast milk, formula, or water, regardless of how their baby is otherwise fed. The HMOs and probiotic strains in NurtureBio are designed to complement what babies receive through breast milk, not replace it.

Mix the contents of one sachet daily into a bottle of breast milk, formula, or water. NurtureBio dissolves easily and does not change the taste, which makes it simple to add to your routine. For older babies who are eating solids, you can also stir it into soft foods like yogurt, oatmeal, or pureed fruit. Whatever you mix it into should be at room temperature or just slightly warm, never hot, since heat above body temperature can affect the live probiotics.

There is no single best time of day. Consistency matters more than timing, so many parents pair NurtureBio with a specific feeding, like the morning bottle, to make it part of their routine.

This is common with anything new, and it is okay. Probiotic doses do not need to be exact to be beneficial. If your baby consistently does not finish the bottle, try mixing the sachet into a smaller amount of milk or water so they take in more of it.

Missing a day is okay. Just pick back up with your normal routine the next day. Gut health builds over weeks and months of consistent support, and one missed dose does not undo your progress.

No, NurtureBio is shelf-stable, so it does not require refrigeration. Store the sachets at room temperature, away from direct heat, sunlight, and humidity, and keep them sealed until use.

Every baby's gut responds differently, so there is no single timeline. Some parents notice changes in stool consistency or comfort within the first few weeks. For other families, the changes are more gradual. Supporting gut health is a longer-term process, and consistent daily use over several months gives the probiotic strains time to establish and the HMOs time to support a broader range of beneficial bacteria.

Many parents reach for a synbiotic during the colic and gas phase, and research on specific probiotic strains has shown links to digestive comfort in infants. NurtureBio is designed to support healthy gut function, which can be a factor in everyday comfort. Colic and gas can have many causes, and NurtureBio is not intended to diagnose or treat a medical condition. If your baby has persistent crying or feeding difficulty, talk with your pediatrician. Our guide to colic and the gut connection has more.

Constipation in babies is often related to feeding changes, hydration, and the developing gut microbiome. The probiotic strains and HMOs in NurtureBio are studied for their roles in supporting healthy stool consistency and a balanced gut environment. If your baby is dealing with persistent constipation, especially alongside poor feeding or discomfort, please consult your pediatrician. You can also read our guide to baby constipation.

A large portion of the immune system develops in the gut during the first 1,000 days of life. The probiotic strains and HMOs in NurtureBio have been studied for their roles in supporting this early immune development. NurtureBio is designed to support healthy immune development, and we do not claim that it prevents or treats illness. Our guide to the gut and immunity explains the connection.

NurtureBio contains a small amount of maltodextrin as a functional excipient, and it has a long history of safe use in infant and pediatric nutrition. Its job is to protect the live probiotic strains from heat, oxygen, and moisture during manufacturing, storage, and transport, so the product delivers the strains and doses listed on the label. It is not included for nutrition, sweetness, or bulk, and we use it conservatively, only where it serves a clear functional purpose.

At the trace amounts used in NurtureBio, maltodextrin does not meaningfully impact blood sugar or digestion. The quantity is far below what would be required to have a metabolic effect. Its role is structural and protective.

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