Perricone MD Cold Plasma Plus Advanced Serum Concentrate 15 ml | 0.5 oz | New in Box This advanced serum concentrate targets skin's individual needs to deliver visible and personalized results. Packed with powerhouse ingredients, including copper tripeptides to improve the appearance of firmness and elasticity, Vitamin C Ester to reduce the look of dark spots and radiance and omegas 3, 6 and 9 to promote smoother, more supple-looking skin. Apply before your favorite Perricone MD moisturizer.