Chuan lines, i.e. lines between the eyebrows, are deep wrinkles that appear as the word “Chuan” between the eyebrows as facial wrinkles gradually deepen with age. There is no such thing as the best way to improve frown lines, but it can be improved through botulinum toxin injections, hyaluronic acid injections, radiofrequency treatments and surgical treatments. 1. Botulinum toxin injection: Botulinum toxin type A injection is commonly used for the elimination of dynamic frown lines. After botulinum toxin is injected into the frown muscle, part of the frown muscle can be loosened and relaxed. Therefore, Botulinum toxin injection can improve dynamic frown lines. 2. Hyaluronic acid injection: Hyaluronic acid is a soft tissue filler. When static frown lines appear, the patient’s skin has collagen loss and tissue volume loss. Therefore, hyaluronic acid injection can be used to improve static glabellar lines. 3. Radiofrequency treatment: Radiofrequency treatment can make use of the heat conduction effect of high-frequency electric field, which can promote the contraction and reorganization of collagen fibers and elastic fibers, so as to achieve the purpose of tightening the skin and reducing the Chuanzhi lines. 4. Surgical treatment: generally applicable to patients with obvious skin laxity, can be carried out under the guidance of a specialist doctor between the eyebrows to remove wrinkles, so as to make the skin between the eyebrows flat. Patients who have Chuanzhi lines and have the need for treatment should go to a regular hospital in time, and under the guidance of a specialized doctor to carry out regular treatment, so as to avoid adverse consequences.