PREVAGE Anti-Aging Daily Serum. This firming serum protects and corrects the look of skin, helping shield it from environmental assaults and intercepting future aging signs. In addition to noticeably minimizing the appearance of lines, wrinkles, age spots, and discolorations and giving skin a firm look,With continued use, skin's natural look of resilience is fortified, allowing skin to help fight the effects of environmental aggression. For best results, use it morning and night.