POWER-FULL PLUMP LIP BALM BIG O. Benefits: Unique reactor works with your individual pH level to transform lips to their most flattering custom shade. Visibly plumps for fuller-looking lips. Silky texture for a comfortable application. Wear it alone or layer with your favorite BUXOM lip products. Key Ingredients: Pumpkin Seed Oil: Helps to add comfort and suppleness. Plumping peptides: Help to visibly plump lips. Formulated Without: Parabens. Petroleum. Mineral Oil.