I am a 71 year old female with a meniscus tear in my knee. It’s not bad enough for surgery but when I overdo doing yard work or other physical activities I have severe pain. Many times this is pain wakes me during the night. I keep a tube of this on my nightstand and within minutes of applying I have great relief. This is truly a must have if you overdo and pay for it later. I highly recommend. I have drawers full of every type of cream and salve and none of them even come close to this. Don’t let the price scare you off. You will not regret buying this.