Dr. Stuart Kaplan has identified 12 key skin symptoms associated with aging, which begins to affect our skin starting in our late 20s ~ early 30’s. They are: Accelerated Formation of Fine Lines and Wrinkles Adult Acne Flushing/Redness Loss of Firmness Loss of Elasticity Thinning, Colorless or Translucent Skin Dull, Lackluster Skin Dry, Dehydrated Skin Uneven Pigmentation Facial Hair Growth Photosensitivity (sensitive to sun exposure) Hypersensitivity (skin is more sensitive to irritation, allergies and bruising).