5 simple tips to reduce knee wrinkles after 40

1. Exfoliate.

The body produces less collagen as we age, so exfoliate the knees to stimulate skin’s collagen production and increase blood flow to the area. Sloughing off dead cells also helps ingredients penetrate. We recommend either using a body brush with a dollop of cleanser while bathing or simply dry brushing, whereby you take a brush and gently sweep it over your knees on a regular basis. Please keep in mind that dry brushing should only be done on healthy, unbroken skin and not on an excessive basis, as overdoing it can actually thicken the skin.

2. Moisturize.

Knees tend to get dry easily, so be sure to thoroughly moisturize them at least twice a day–including right after that relaxing shower–to keep the skin around the kneecaps healthy and more easily able to heal. Use moisturizers that contain Vitamin C, shea butter or retinoids. Retinoids are widely used by dermatologists in the fight against wrinkles for their effectiveness in increasing the production of collagen, while shea butter helps to fill in wrinkles and Vitamin C brightens any darkening skin. Win-win-win.

3. Exercise.

Yes, as usual, exercise is a key part of keeping the signs of aging at bay. Yoga or Pilates–or, better yet, a combination of both–are particularly effective in keeping the knee muscles and skin strong. Yoga concentrates on stretching, which strengthens the skin, thereby minimizing any sagging. Pilates, on the other hand, focuses on building strength in the legs, which of course helps strengthen the muscles–and this, in turn, tightens the skin around the knee.

4. Wear Sunscreen.

We often slap SPF 50 on our faces, arms and lower legs, completely forgetting about the knee area and leaving it vulnerable to the aging effects of the sun. However, it’s critical to also protect the skin around the knees from UV rays, helping prevent further skin damage and wrinkling. Doing so will also allow skin to retain more moisture without pigmentation breakdown or interruption of collagen fiber formation.

5. Camouflage.

If all else fails, try concealer. Makeup artist Scott Barnes, who works with famous clients such as Jennifer Lopez and Kate Hudson, mixes Dermablend Leg and Body Cover ($31) with his Body Bling Original bronzing lotion ($42). "It makes knees appear thinner and covers a multitude of sins," he tells Hollywood Reporter, including bumpy skin.