This product is a godsend. I occasionally experienced restless legs prior to pregnancy but in my third trimester, I have had then every night and they kept me up almost all night. I've tried many things to help but this product truly did the trick. It kicks in pretty quickly and really relaxed my legs. If used every night you will go through a bottle in about a week. So after my first bottle I bought a 4 pack and have been using it nightly. So thankful for this!