Hello, it is recommended to inject face-lifting needle one week after laser to ensure better effect. Face-lifting needle (botulinum toxin) is a neurotoxin, which can block the nerve impulse between nerves and muscles, relax the over-contracted small muscles, and achieve the purpose of face-lifting. After injection, there may be slight swelling, temporary slight redness, itching or headache, and some parts may have slight cyanosis, which usually disappears by itself in about a week. Injection of face-lifting needle seems simple, but in fact, the doctor's level is very high, so don't just look for a beauty salon for injection.