 5. Subjects who have used anti-aging skincare products cosmetic and drug products with any of the following ingredients: AHA, Salicylic Acid, Vitamins A, Retin-A, Vitamin C, Growth Factors or Peptides, Antioxidants such as Idebenone, CoffeeBerry, CE Ferulic, Phloretin, etc. within the last 3 months and during the course of the study. 