Glo Skin Beauty Mattifying Face Primer is a water-based formula and is the perfect primer for oily skin and those prone to an oily shine. Use our natural mattifying primer for sensitive and oily skin, to give your skin a more matte-like appearance and help extend the staying power of your foundation. Instantly de-shine, refine and target areas of excess oil production with this silky, oil free mattifying primer. Glo’s mattifying primer for oily skin preps and perfects skin with a smooth, invisible matte finish that helps eliminate shine, fill in fine lines and minimise the appearance of pores while extending the wear of your makeup.