BeautyStat Cosmetics Neutral Peach C Lip Serum SPF 30 Ulta Beauty The Best VITAMIN C Lightening & Brightening Serum & Lips Brightening Butter Skin by Jada Ross We Tested Dozens of FormulasThese 6 Best Vitamin C Serums Deliver Real Results Allure We Tested Dozens of FormulasThese 6 Best Vitamin C Serums Deliver Real Results Allure Did you know? Our new Brightening Lip Serum is powered with VC IP (Ascorbyl Tetraisopalmitate), a Vitamin C derivative that's more stable, penetrates deeper, and helps brighten lips without irritation. Not