This stuff has been used in our Family for over 50 years ! My Grandmother's Cousin use to bring it down from Canada when he visited, he called it "Dr. Wong" and that has been called that since I was a 10 year old kid, may even have been sice the late 1960's....Stuff works wonders on sore muscles and sprained knees or ankles...Way better than Blue Emu, BenGay, IcyHot, etc.....Lots of mosquitoes now since the weather becomes warmer on the last few years. This oil works so well relieving itches from mosquito bites. Normally I have to go to Asian supermarket to find this. No more ?My friend told me about this and so I tried it. It really works for the pain. Smells a little better than Ben-gay but seems to work better.Effective product for pain relief. Have been using it for years on joints.I like the soothing comfort of this menthol type lotion - It is not a cure but I find it a soothing comfort to use. I have used several bottles now. My Asian neighbor gave me my first bottle as a kind gesture when I told her I had neuropathy in my feet.Very good and effective for muscle, joint pain.Not original!!This oil does not work that well