Wrinkles such as worry lines, laugh lines, neck lines, crow’s feet and neck bands are caused by muscles under the skin contracting when we laugh, smile or express emotions facially. Wrinkle erasers work on the root of the cause- the muscles. They temporarily weaken the skin’s muscles, reducing their ability to contract. No contractions mean no wrinkles, and skin is smoother, tighter and wrinkle-free. Dr. Moran’s philosophy is to start small for a more natural, expressive look. Subsequent doses can be adjusted accordingly.