Just line right outside your natural lip line and it stops lipsticks from bleeding. This product is clear matte so its not noticeable and easy to use. I tried it last night with the 2 shades/products I have the most issues with 1. Glossy reds (MAC Brave Red) & Lip Butters (Darker Berry/Red Shades) and it worked beautifully with both. I applied my lipsticks right from the package without using a brush (still carefully) and my lip lined looked perfect and stayed that way. I totally think this product was worth the $14.99 I payed.
Has anyone tried this one or even the one by Too Faced? Would love to know what you think:)