Anti-Aging Booster Serum by Neutrogena boosts the effectiveness of your skincare routine for a more youthful look. This high potency age-defying serum with Ion 2 Complex activates when combined with your anti-aging moisturizer. This breakthrough technology boosts the effectiveness of your skincare routine, smoothing lines and improving the look of collagen-depleted skin for healthier, younger looking skin. Ion 2 Complex Technology is clinically proven to help: improve the look of collagen-depleted skin, soften the appearance of fine lines and wrinkles, including crow's feet and lip lines, reduce the look of eye puffiness and dark circles, even skin tone and minimize signs of discoloration, leave skin softer and smoother. What is Ion 2 Complex Technology? Ion 2 Complex contains essential ion-mineral conductors that, when activated by your moisturizer, create a positive micro-current to boost results.