COVER FX Custom Enhancer Drops Cover FX Custom Enhancer Drops are ultra-concentrated illuminating drops that can be used to create a buildable highlight or all-over glow. Use them under makeup mixed with your favorite beauty products, over makeup as a highlighter/bronzer, or on the eyes, lips and body for high-impact luminosity. Available in seven universal shades. Vegan & cruelty-free. Formulated without talc, parabens, mineral oil, gluten, alkyl sulfates, phthalates and fragrance.