Rarely does anyone have just one skin concern (read: dull skin, dark spots, large pores, or fine lines and wrinkles). Treating them all at the same time can feel like a tricky process, especially when there are serums with active ingredients involved. To help you treat more of your skincare woes at once, IT Cosmetics launched four new serums that can be layered together to achieve the skin of your dreams. Ahead, we’re breaking down how to layer the IT Cosmetics Bye Bye Serums so you can say “bye bye” to your most pressing skincare concerns.Pair #1:If you’ve got an uneven skin tone and dullness, this pair is for you. In the morning, combine two pumps of the vitamin C-infused Bye Bye Dullness serum with four to five drops of the Bye Bye Dark Spots niacinamide serum. The result: radiant skin. Editor’s Tip: Be sure to follow up with an SPF of 30 or higher if you’re headed into the sun.Pair #2:Smooth fine lines and shrink the appearance of large pores by adding two to three drops of the Bye Bye Lines hyaluronic acid serum with four to five drops of the Bye Bye Pores glycolic acid serum at nighttime. Come morning, you’ll find your complexion that both looks and feels plump and soft and your pores way tighter. Pair #3: Say goodbye to unwanted skin texture and hyperpigmentation spots with this foolproof combo. In the morning, apply two pumps of the Bye Bye Dullness vitamin C serum. Then, at nighttime, pat on four to five drops of the Bye Bye Pores glycolic acid serum to your skin before bed for a more even-toned complexion when you wake up from your beauty sleep. Pair #4:We’ve all had bad skin days. Get your complexion back on track (read: target acne scars and enlarged pores) by reaching for four to five drops of both the Bye Bye Dark Spots niacinamide serum and the Bye Bye Pores glycolic acid serum before finishing off your skincare routine with a moisturizer.  Design: Hannah Packer, Photo: Chaunte VaughnRead More:How to Derma Roll with Serums, According to an EstheticianA Simple, Minimalist Skincare Routine for SummerA Complete Guide on How to Layer Skincare Products