Benefit Cosmetics The POREfessional Face Primer in Beauty: NA. Benefit Cosmetics The POREfessional Face Primer in Beauty: NA. Quickly minimize the appearance of pores and fine lines with Benefit Cosmetics' the POREfessional Face Primer. Enriched with Vitamin E, this silky, lightweight, mattifying primer immediately blurs flaws, fights shine, and creates a smooth base to help makeup stay put.. Oil-free formula with a matte finish. Vitamin E protects skin from free radicals. Complements all skin tones. 0.75 fl oz. Apply a thin layer along the T-zone to clean, lightly moisturized skin. For soft-focus selfies, apply before and after makeup application. Follow with Stay Flawless Face Primer. BCOS-WU100. IB184. Founded in 1976 by a sister duo of San Francisco beauty lovers, Benefit seeks to bring laughter and fun to the world of cosmetics. Guided by the mantra makeup doesn't have to be serious to look good, Benefit's iconic products boast breakthrough formulas in loud, playful packaging, inspiring women all over the world to apply more lipstick, grab life by the giggles, and fake it 'til you make it.