this product really packs a punch. I had about 1/8 of a cup before bedtime and was still buzzed the next morn. It lasted a full 10 hours. While the pain relief was great to experience, the long lasting effects were unexpected, and in this case, unwelcome (as I had to cancel my doctor's appointment because I was unsafe to drive. I found the label (attached) confusing. Dise vs Serving - confusing!