SierraSil®, the active ingredient in our products, has been subjected to rigorous testing and analysis. The consistent outcome of the lab, in vitro and human clinical trials are that SierraSi is a safe and effective way to support joint health and function. Research also shows a fast onset of benefits.
SierraSil is therefore an exceptional natural product for people who need joint, muscle and cartilage support. You can review a highly abbreviated compilation of the clinical studies completed to date. For a full report, you can read our Professional Reference Guide.