Obsessive Compulsive Cosmetics Lip Duo Set in Purple. Obsessive Compulsive Cosmetics Lip Duo Set in Purple. The original liquid lipstick is brought to you by Obsessive Compulsive Cosmetics' Lip Tar. Unrivaled pigment and maximum wear ensures that only a small amount of product is needed for full coverage. This set includes a coordinating lip liner for ultimate effect.. Lydia - darkroom purple. Hemp oil and Vitamin E lend to a moisturized finish. Peppermint oil provides a natural antibacterial and antimicrobial alternative. 0.14 fl oz and 0.03 oz. OBSR-WU2. DUO LYD.