By: Lisa Benest, MD, Medical & Cosmetic DermatologyNasolabial folds (NLF), also known as laugh/smile lines, are the two skin creases that run from each side of the nose to the corners of the mouth. These lines distinguish the cheek from the upper lip. When people age, the fold can grow in length and depth. Overexposure to sunlight has also been linked to smile-line development. Chemicals in cigarettes can also accelerate the aging process by about 20%. Some people welcome the change, while others feel it detracts from their natural beauty.Lisa Benest, MD, Medical & Cosmetic Dermatology is now proud to offer an amazing new procedure. Restylane® Refyne and Restylane® Defyne are two treatments that have been approved by the Food and Drug Administration (FDA). We now use Refyne to treat moderate-to-severe facial wrinkles and folds, while Defyne is approved for treating moderate-to-severe deep facial wrinkles and folds.Both of these products are dermal fillers, or soft tissue fillers injected just under the facial skin to help restore a smoother appearance. Refyne and Defyne are both minimally-invasive and low-risk cosmetic dermatology options.What makes these fillers different from the rest is that they are really flexible. They will move and contour with your face as you make your normal expressions, resulting in a natural appearance. Your smile will not appear modified, altered or forced. About 97% of patients who received the treatments have been satisfied with the results, and around 95% of them would recommend Restylane® Refyne or Defyne to their friends.If you're interested, you might want to know what to expect. The treatment time will take about 30 minutes. Immediately after the treatment, you may have temporary swelling or redness for the first day. If any bruising results, this goes away in less than a week.We offer medical and cosmetic dermatology services and treatments to people throughout Southern California. If you would like to discuss this option with one of our physicians, contact us at 818-284-4003 or by filling out our online form. We look forward to speaking with you.