gloMinerals gloLip Filler Pencil by GloMinerals. $15.01. Perfect for use under lipstick and gloss. Formulated with gentle minerals. Never feels heavy or dry. Smooth, colorless formula. Fills in fine lines. gloMinerals gloLip Filler Pencil is a liner primer that leaves lips looking smooth, soft and professionally defined. Smoothes and fills fine lip lines to prevent feathering and fading while supporting hydration of the lips.