This stuff has blown me away with how amazing it is. I use it from headaches on my temples of front of the forehead and it works within minutes of applying. I use it on my husband as well, and now he even asks for it when he gets a headache. Also works wonders for menstrual cramps. Will always keep this on hand from now on. I used to take ibuprofen, and now the last two times I have gone without medicine and strictly used the bee cool stick. It works wonders ! Lasts for a good 4- 6 hours depending on how much you apply. Its so easy to carry around in a pocket or purse , I just love it so much .