For a quick fix, place cucumber slices (for astringency) or chilled caffeinated tea bags (for tannins) on your eyes for 15 minutes to tighten skin and absorb fluid. But eat vitamin C-rich foods to support collagen production.Tap the eye area lightly while moisturizing to help dissipate excess fluid, says home-spa doyenne Janice Cox, author of "Natural Beauty at Home." To reduce water retention, drink water, limit alcohol, and get more rest.

For immediate results, look for a concealer that is close to your natural complexion -- lighter tones will make circles look gray. Or try plumping up thin skin with a fast-absorbing oil like jojoba. Try foods rich in vitamin K because it helps fortify blood-vessel walls, and use a daily topical treatment with vitamin K. Also aim for more downtime and sleep.

Sun exposure and aging diminish skin's elasticity; UV rays and pollution cause inflammation and cell damage. As a result, repeated expressions (smiling, squinting) form creases. Look for products containing evening primrose, jojoba, sesame oils to hydrate skin and maintain flexibility; aloe to speed healing; and antioxidant vitamins A, C, and E to help fight free radicals and sun damage.

To quickly prevent, use a cream eye shadow, or apply a hydrating primer underneath your usual powder to help retain natural moisture. Or use a light eye cream in the morning and a rich cream at night; tap the eye area lightly with your finger until the product is absorbed to stimulate circulation. Use a gentle, hydrating makeup remover or cleanser. Don't scrub harder to remove stubborn makeup; instead, gently wash the area again. Eliminate talc-based eye shadows, which sap moisture.