Your health & wellness begins in the core of your body - the digestive tract. yet diet, daily stress, travel and some medications can occasionally disrupt the balance of good bacteria, which can leave you open to a host of issues. So, it is important to protect your core health every day. Only Pro-Well Health & Wellness contains 15 billion live active cultures of lactobacillus GG, the most clinically studied probiotic strain,** for clinical strength immune support.* It works naturally with your body to: Help safely restore the natural balance of good bacteria in your digestive tract, where 70% of the immune system resides.* Support your natural immune defense and promote overall health & wellness.* The leading brand with 100% lactobacillus GG.**** With lactobacillus GG, the #1 world's most researched probiotic and subject of over 1000 scientific studies.** Guaranteed potency through the expiration date vs. just the time of manufacture.*** The #1 pharmacist recommended probiotic brand.***** Dairy-free^, gluten-free^^, sugar-free^^^. Contains none of the following: artificial dyes, preservatives, lactose, milk, yeast, wheat, or soy. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. **Based on the number of Lactobacillus GG clinical studies, as of May 2015.***Guaranteed potency through date on box when stored according to instructions. ****Based on: Nielsen xAOC 52 weeks ending 10/01/16. *****Based on the 2016 Pharmacy Times OTC survey. ^While there are no dairy-derived ingredients in the product, it is produced in a facility that also handles dairy ingredients. ^^Meets the FDA's guidelines for gluten-free. ^^^Contains sucrose which adds a dietarily insignificant amount of sugar. Not a reduced calorie food.