Is medical beauty disposable blunt needle hit hyaluronic acid safe?

Hyaluronic acid is usually injected with a surgical risk of about 2%. But with the invention of new technology, hyaluronic acid injection with blunt needle is now controlled at 0.8% risk, higher safety factor and basically painless. The difference between a blunt needle and a sharp needle is the needle, the blunt needle is completely polished on the outside, while the head is blunt. Only into the structure to play a small trauma blood vessels can completely avoid, so the chance of swelling and bruising on the face is much less, so blunt needle hyaluronic acid is safer than sharp needle injection, however, no matter what kind of hyaluronic acid needle injection, many precautions after the operation will directly affect the effect of surgery.