We’ve all heard the question, “If you could have only one thing on a deserted island, what would it be?” For some reason the unpredictable answers from others make this question quite intriguing and reveal a lot about a person and how they think. What if that question had to do with your skin care routine? After creating a multistep routine with nearly a half-dozen products, how is it even possible to pick only one? In a market that can sometimes seem oversaturated, we wanted to get the scoop on what dermatologists really can’t live without. After all, they are skin experts and know what it takes to have a healthy complexion. We asked these skin pros if they could only use one product what would it be? And the answers just might surprise you.