Thymus PMG contains bovine thymus PMG extract, a proprietary Protomorphogen blend. PMGs contain a unique profile of nucleotides and peptides from bovine thymus. Nutrients & Ingredients Each Serving Size (1 Tablet) contains: Calcium 20 mg, Sodium 40 mg. Proprietary Blend 215 mg: Bovine thymus PMG extract and magnesium citrate. Other Ingredients: Calcium lactate, cellulose, and calcium stearate.* These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. ♱ Claims based on traditional homeopathic practice, not accepted medical evidence. Not FDA evaluated.