Wrinkles

Limited exposure to the primary causes of extrinsic aging remains the most effective way to prevent the early onset and progression of wrinkles. Sun exposure, sunlamps, and tanning beds should be avoided, and sunscreens with broad-spectrum ultraviolet (UV)-A and UV-B protection should be used on all areas of unprotected skin, especially the face and hands. Broad-rimmed hats and other protective clothing should also be worn when out in the sun. Abstinence from smoking prevents acceleration of the aging process and its associated wrinkling. Sunglasses may prevent squinting from the sun and, thus, accentuation of facial expression lines such as "crow's feet". Antiaging skin care products (e.g., retinoids, vitamin C, antioxidants) also contribute to the prevention of wrinkle formation.

This is much the same as primary prevention with appropriate sun protection, using antiaging skin care products, and abstinence from smoking.