Over 50,000 Doctors Agree - Designs for Health is the physician's choice for top quality professional strength supplements since 1989. Our "Science First" philosophy ensures our products are based on the most recent research and use the highest quality raw ingredients. Higher Standards. Better Results - Designs for Health maintains a strict, no-compromises approach to quality raw material selection. This product is Non-GMO and contains no Gluten, Dairy or Soy. Support The Gut Lining - This comprehensive formula contains ingredients designed to promote proper intestinal function and the mucosal lining.*. Promote Regularity - Prune powder and citrus pectin are also included to aid occasional irregularity and promote healthy bowel function.*. Optimal Gastrointestinal Support - GI-Revive combines L-glutamine, N-acetyl-glucosamine, MSM, DGL, slippery elm, marshmallow, chamomile, okra extract, cat's claw (TOA-free), quercetin, and mucin for comprehensive support.*.