Toner clears your skin of any extra oil or buildup ... Efficacy of a twice-daily, 3-step, over-the-counter skincare regimen for the treatment of acne vulgaris. Clin Cosmet Investig Dermatol.
A recent addition to my bare-bones routine is toner pads because they do a lot of heavy lifting for my face such as toning, exfoliating, and brightening! If you're also an efficient (*wink*) beauty ...