In the not-so-distant past, you likely had one, maybe two moisturising options: lotion, or a slightly denser cream. The choice was nice, simple, and way too narrow.Fast-forward to 2016: Oils (which hit the scene like a tidal wave a few years ago) and gels (which are currently flooding the market) have joined the old standbys. Hooray for options, right? Of course — with a small caveat.You don't have to be a dermatologist to know that picking the wrong moisturiser can equal a major slip up. A too-heavy emulsion means breakouts and congested pores, while skimping on hydration results in tight, flaky skin. Luckily, a good dermatologist's recommendation can help strike the perfect balance, which is why we consulted one.For tips on navigating gels, creams, and oils we look to Elizabeth Tanzi , MD, board-certified dermatologist and member of the American Academy of Dermatology. Ahead, her advice on selecting the right formulation (some of which may actually surprise you), plus a few editor-approved products perfect for the warm weather ahead. Hello, springtime hydration!