I tried a sample of RTPR & I felt pain relief right away! Out of all the pain lotions & salves out there, this is the best I've ever tried!...Pain killers do not help me; but I am so very thankful that I have found this lotion because it's the only thing that helps my pain!...this is really the only thing I can use to relieve my stiff neck/muscle pain...I'm very sensitive to petro-chemicals & syntetic fragrances, & my mother is allergic to many "smelly" products, but this is a great product if you have those sensitivities as well.