Smooth Proof Serum - BenefitsTames frizzy hair and flyawaysKeeps hair smooth and protects against heat styling tools and humidityEnhances hair shineParaben FreeSuitable for color-treated hairResearch Results*When using the system of SmoothProof shampoo, conditioner and serum vs. a non-conditioning shampooPerfectly smooth hair for up to 72 hours* - Smooth Proof Serum