This product worked wonderfully. My son used it for 2 days as directed and by the 3rd day, his pain was gone. He was able to resume his conditioning and running for spring baseball. Last season he had this same problem with hip flexor. Since we didn’t know about your product, he saw the orthopedic doctor, and chiropractor and had to ice and rest, missing several weeks of baseball season. We are very satisfied that your product worked!