First of all Botox is a natural, purified protein that relaxes the muscles that cause wrinkles and gives the face a youthful appearance. Many facial wrinkles appear when we contract our facial muscles to form facial expressions. The wrinkles that appear when we express our expressions are called dynamic lines, and Botox loosens the muscles that cause wrinkles to form. When we are young, our skin bounces back to its original position when the facial expression is complete, but as we get older, the dynamic wrinkles stay on the skin and form static lines. Botox cannot be used to treat static lines. Long-term clinical data and experience have found that the safety of Botox in various cosmetic treatments is quite good. Botox has been approved for use in 88 countries. Botulinum toxin is now the first drug of its kind to be approved by the CFDA in China for use in medical aesthetics. However, it is important to note that Botox is a prescription-only medication, and only qualified hospitals or clinics are able to offer this treatment, so buying it online and injecting it yourself is never an option. Most Botox injections last 4 to 6 months, with the duration varying depending on the individual’s constitution. Side effects are virtually nonexistent. Occasionally there is some mild localized bruising, congestion, itching and headache, which is usually short-lived and disappears on the same day. In rare cases, bruising takes 2 to 3 days to disappear completely. Who should not receive Botox for wrinkles? (1) People with known allergy to any component of the preparation. (2) Those suffering from neuromuscular junction diseases (myasthenia gravis, myasthenia gravis syndrome, etc.). (3) Those who have an infection at the proposed injection site. (4) Those who are planning to become pregnant within the last 6 months.