For children under 5 years old. From this age, we recommend taking Probactis Strep® lozenges. Probactis Strep® promotes healthy oral microbiota, which is our first line of defense for our ears, nose, and throat. With Streptococcus salivarius K12. With vitamin D. Clinically tested in children and adults, Probactis Strep® contains Streptococcus salivarius K12, a probiotic strain naturally present in the oral cavity that produces natural antimicrobial substances, helping to maintain the ear and throat's defenses. The Streptococcus salivarius K12 strain from Probactis Strep® is one of the oral cavity probiotic strains with the most clinical studies and published scientific literature. Instructions for use: Probactis Strep® Kids should be administered to the child over approximately 3 minutes to maximize contact between the preparation and the child's oral mucosa. - The contents of the sachet can be dissolved in a small amount of water and administered with a spoon in small portions. - The contents of the sachet can be poured into a clean glass. Moisten and dip a spoon, pacifier, or clean finger into the powder, then administer several times until the contents of the sachet are finished. - Do not pour the contents of the sachet directly into your mouth.