Neck lines are mainly caused by aging and reduced vitality of epidermal cells, as well as atrophy of connective tissues, which can be related to factors such as aging and rapid weight loss, and can be treated accordingly. 1.Medication application: massage and skin care products have limited utility, topical creams can be applied to the neck, such as hyaluronic acid gel or humanoid collagen milk, which is good for maintaining skin moisture and increasing hydration to tighten the skin and help Get rid of neck lines; 2. Surgery: If the skin relaxation is more serious, you can choose skin lift, which can effectively eliminate neck lines by surgically removing the excess part of the neck skin relaxation area and performing artificial anastomosis. You can also choose to use hot lift, which can tighten the skin and promote the elimination of neck lines; 3.Medical beauty: If you want to remove neck lines in a short time, you can choose laser treatment or injection treatment, injecting hyaluronic acid or collagen can fill up the skin, and you can also choose to inject botulinum toxin when the sagging of neck skin is not serious in the early stage.