PurAmino Amino Acid-Based Formula

When a baby or child can't tolerate cow's milk protein — even the broken-down proteins in hydrolyzed formulas — PurAmino gives the body protein in its simplest form. Made by Mead Johnson, PurAmino is an amino acid-based (elemental) formula, meaning the protein is already broken into individual amino acids the immune system won't recognize as an allergen. That's why pediatricians and gastroenterologists reach for it in the toughest cases: severe cow's milk protein allergy, multiple food protein allergies, eosinophilic esophagitis, short bowel syndrome, and other conditions where an intact or partially hydrolyzed protein still triggers symptoms.

This collection carries the range across ages. PurAmino Infant Powder (14.1 oz., unflavored, #179101) is a nutritionally complete formula designed to be the sole source of nutrition from birth through the first year for infants who need it. As children grow, PurAmino Junior Hypoallergenic Pediatric Oral Supplement (#178701) and PurAmino Jr (30 calorie, #178801) continue elemental nutrition for ages one and up — either as a complete diet or as a supplement — and can be taken orally or delivered by feeding tube.

A few things parents commonly ask: the powder is unflavored, which helps with mixing into an established routine, and it's prepared by measuring water and scoops per your clinician's or the label's directions. Because these are specialized medical formulas for diagnosed conditions, start it under the guidance of your pediatrician or dietitian, who will confirm the right product and concentration for your child's needs. Once mixed, prepared formula should be refrigerated and used within the timeframe on the can.

Explore related options in our Nutrition and Pediatric Nutrition collections, or browse Infant Formula for additional feeding solutions.