You need to be very careful if you inject botulinum toxin into your neck. Because the neck is an important passage of respiratory tract and digestive tract, too deep or too large injection may cause respiratory paralysis. In addition, the duration of botulinum toxin injection can only be 4-6 months, which requires regular injection.
Injection of hyaluronic acid into deep neckline can improve the deep neckline that has been formed, and only injection of hyaluronic acid, collagen and other filling materials can improve it. Hyaluronic acid is a transparent and viscous colloidal substance, which originally exists in human skin.
Weaving is a safer filling material. Hyaluronic acid can be injected into the folds and depressions of dermis as a filler, which can achieve immediate wrinkle removal effect. But its disadvantage is that it can only last for about 6-9 months, and it needs regular injection.