I have been use the healing oil for one week now, due to a trapped nerve in my lower back. At first the smell is quite strong but not overwhelming. I first used it when stretching off, it worked really well and allowed me a lot more movement than I previously had. I then started to use before I trained. This allowed me to train longer at a greater intensity. But the best results I had was to apply it, after warming up. You could feel it working as I went through the rest of my work out. The relief last about 3 hours.