Wow so this stuff is amazing. Truly unreal how it works. It does exactly what it says and the strange picture on the front of the bottle shows. No leg burn on the hills and sprints that usually hurt the most. I usually feel a lot of burn when riding with friends, since most of them are faster than me. Sport legs gives me the extra help I need to hang. It also doesn’t have any garbage in the ingredients which makes me comfortable in using it all the time. Buy it and try it, it works and you will be hooked like me.