Bliss Bright Idea Serum is a collagen-protecting and brightening serum features our highest concentration of clinical-grade vitamin C plus tri-peptide to brighten, diminish the look of dark spots and visibly firm skin. This spa-grade serum powered by the most effective, non-irritating form of vitamin C, and boosts brightness & elasticity in one use with clinical-grade vitamin C + tri-peptide. Antioxidants help defend from future free radical damage. Layers perfectly under moisturizer and makeup. Bliss products are 100% cruelty-free, free from more than 1,300 harmful ingredients, and 100% recyclable.