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Skin thinning is one predictable consequence of aging. As people age, their bodies produce less of the components that support skin health and development. But aging is not the only cause of thinning skin, and MayoClinic.com reports that exposure to the sun breaks down collagen and the fibers that provide coherence to skin layers. A number of approaches can be used to thicken skin. Not all treatments have sound medical backing, but most will improve overall health and therefore skin cell production.

Apply a moisturizer to the thinned area frequently. Clean the area with a mild soap that has no fragrant additives. With the skin still wet, smooth on a moisturizing lotion.

Add fish oil or flax seed supplements to your diet. According to Ray Sahelian, M.D., a study published in the September 2008 edition of the "British Journal of Nutrition" found that some conditions that lead to thin skin might improve by adding fish oil or flax seed to the diet. Both elements are available as dietary supplements. Follow the instructions provided with the product for proper dosage.

Drink at least eight 8-oz. glasses of water or clear fluids each day. Improving hydration will affect the elasticity of skin and help it heal naturally.

Smooth a sunscreen with at least 15 SPF over any exposed skin before venturing outside.

Make a doctor’s appointment to discuss using a Retinoid product. Retinoic acid, used in prescription strength, should increase collagen in skin and thicken it.

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About the Author

Darla Ferrara

Writing since 1999, Darla Ferrara is an award-winning author who specializes in health, diet, fitness and computer technology. She has been published in "Mezzo Magazine" and Diet Spotlight, as well as various online magazines. Ferrara studied biology and emergency medical technology at the University of Nebraska and Southeast Community College.