Restylane-L® is a crystal clear injectable gel composed of hyaluronic acid, a natural substance that already exists in the body. Restylane-L is non-animal based and free from animal protein. Allergy pretesting is not necessary. Restylane-L contains 0.3% lidocaine. The lidocaine in Restylane-L has been added to reduce the discomfort associated with the treatment.
Restylane-L is injected into the skin with an ultrafine needle to plump the skin to smooth away wrinkles and folds such as the lines from your nose to the corners of your mouth (nasolabial folds) or into your lips for patients over the age of 21 for lip enhancement.
Lidocaine was added to Restylane-L to reduce the pain and discomfort during and after injection. In a clinical study, 60 patients received Restylane® on one side of the face and Restylane-L® on the other side of the face. Restylane-L had an effect on reducing pain. At the time of injection, patients rated their pain about 45 on a scale of 0 to 100 for the side of the face treated with Restylane. In comparison, patients rated their pain about 15 on the same scale for the side of the face treated with Restylane-L. Patients reported less pain on the side of the face treated with Restylane-L up to 60 minutes after treatment.