From the National Institutes of Health:
Researchers, health care providers, and consumers can now investigate the ingredients listed on the labels of about 18,000 (and growing) dietary supplements. The Dietary Supplement Label Database (DSLD) is available free of charge. It is hosted by the National Institutes of Health (NIH) and is the result of collaboration between the NIH Office of Dietary Supplements (ODS) and the National Library of Medicine (NLM), with input from federal stakeholders. www.dsld.nlm.nih.gov
Dietary supplements, taken regularly by about half of U.S. adults, can add significant amounts of nutrients and other ingredients to the diet. Supplements include vitamins, minerals, herbals and botanicals, amino acids, enzymes, and more. They come in many different forms, including tablets, capsules, and powders, as well as liquids and energy bars. Popular supplements include vitamins D and E; minerals like calcium and iron; herbs such as echinacea and garlic; and specialty products like glucosamine, probiotics, and fish oils.
Hundreds of new dietary supplements are added to the marketplace each year; others are removed. Product formulations are frequently adjusted, as is information on labels. The DSLD provides product information that can be searched and organized as you need.
For more information, click this link: http://www.nih.gov/news/health/jun2013/nlm-17.htm