Moov is very old and well known company . I have my personal experience that if we get any pain in our body at that time if you apply this spry you will fill much better in few minutes. This moov spray works quickly when you will apply it on you. From past time, moov is leading market in pain relief cream and spray.and I also bought moov spray for my family and really happy from spray product after using cream because spray gives relief early as compare to cream.however, I have doubt that it may cause any side effects.