I make this monthly using grapefruit rinds and distilled water. It's real, it's cheap, and it works. Relieves joint pain, helps you sleep better, and my husband's colitis has been in remission for nearly 2 years since taking it. He takes zinc, vitamins C and D with it. I use it for back pain, colds and occasional shortness of breath. Results are pretty much immediate for me. Don't knock it till you try it!