The provided sample wasn't large enough to get a good idea of how well this worked. However, I received a couple more samples from other sources and stockpiled them so I could have enough to use for several days. I'm very pale and burn if I sit out in the sun but sometimes you want that healthy glow. I wanted to wear a sundress to an outdoor event late this summer and used the TanTowel for three days straight just before the event. The result was perfect. My only disappointment was that it fadded VERY quickly. Just two days after the event, I was back to my usual pale self.