This product is awesome. After three days of being in the pool for 40 minutes I got a deep bronze tan that looks amazing. My sun tan is even and my skin is smooth and nicely tanned. This serum has no sun protection so you only need 40 minutes to get tan. I used it outside when I'm by the pool, so if you are just starting out go slow to develop your base tan and do not get burned. I have never gotten dark bronze color before, I love this serum!