I bought this for my kids for occasional post-sports workouts. They are very active and sometimes ache after a rough practice or game. Seems to have helped them (hard to tell with kids - but they stopped complaining about THAT ailment!!!). What convinced me was the test on my friend's neck which was sore, from who knows what. She was AMAZED!!! Ordered her own bottle right away. So I have a bright future for this product in this household!