Stila’s Beauty Boss Lip Glosses ($15; sephora.com) are sheer, shimmery lip glosses that are perfect for layering. These come in two finishes - cream and shimmer and have different levels of opacity, depending on the finish. I tried out two of the shimmer finishes - Elevator Pitch and Synergy, both very hydrating, not too sticky and great to layer over lipsticks or on their own. The pigmentation is on the sheer side and the formula is slightly plumping without the tingle, while the shimmer is finely milled and more reflective and not chunky. They are quite glossy and great for anyone wanting sheer glosses with or without shimmer and the formula feels super comfortable.