It’s amazing stuff and allows you to have a dark tan base year round with like 1/10th the sun exposure! However, the drawback for me was it spiked my libido and then when you come off it, or after you’ve been on it for several weeks it crashes. It’s a rebound effect on your libido. So I don’t use it anymore. I found after two weeks the heightened libido part wears off and then your crashed for like a month