Elevate Your Eyes with YST Makeup. From award-winning eyeshadows to bestselling mascaras and vegan eyeliners, YST.BEAUTY offers the best in natural eye makeup. We use carefully-sourced natural ingredients in every formula to ensure a beautiful look that won’t harm your skin. Create the perfect line every time with our eyeliners and eye pencils. Our pencils are smooth, gentle, and won’t drag your delicate under-eye skin.