The SMART STRAINS Probiotic Drops for Babies & Toddlers are more than just a supplement - they're an essential investment in your child's gut health and immune system. This product, formulated by The Gut Health Doctor, delivers clinically proven live bacteria, specifically BB-12 cultures, delivering 1 billion units of these beneficial bacteria in every dose. But SMART STRAINS is more than just a gut health supplement - it's also a source of Vitamin D3, known for its role in immune system support. The 28 dose bottle ensures a steady supply of this vital formula, providing a safe and effective means of supporting your child's immune system and promoting a healthy gut microbiome. Trust the experts in gut health, and choose SMART STRAINS to keep your little one healthy and thriving every day.