What are the potential downsides of DIY lip liner?

A highly-pigmented formula that glides on smoothly to create shape and definition. Wooden, sharpenable pencil provides laser-focus precision. I recently purchased the Italia Deluxe 12pc Ultra Fine Lip Liner set, and I'm thrilled with the results! The colors are vibrant, and the pigmentation is ... Cool-tone, classic red, matte finish + peppermint bark flavor in Sage case. Pairs best with Sketch & Shade liner in Realist Red. Lip Liner · 644689 · I'm BlushingI'm Blushing · 644689 645387. NEW! Perfect Pout Lip Liner Stain – I'm Blushing · 644690 645387. NEW! · 644691 645387. NEW! Details. Caviar Perfecting Lip Liner is carefully designed to line lips for color that lasts without ever feathering, or feeling dry. This lip pencil offers ... Our long-lasting, waterproof lipliners glide on smoothly, stay creamy, and define your lips with gorgeous color. Lip Perfecting Plumping Lip Liner. Get perfectly shaped, fuller-looking lips in an instant with this innovative dual-ended conditioning 'lip-touring' pencil. A richly pigmented, longwearing, skin-caring creamy nude lip liner. RMS lipliner is expertly formulated to complement an inclusive range of nude shades. LinerSense® Lip Liner · Designed to blend and complement with all LipSense shades. · Contains the same long-lasting, revolutionary formula as LipSense lip color ... Jan 23, 2018 ... As far as I know, a lip pencil is a form of lip liner. Lip liners come as pencils which you can sharpen, and twist up/self sharpening.