Is a thread lift safer than dermal filler? I do smoke and I am quitting.

Any procedures have complications. PDO threads do not have the most dangerous complications compared to fillers. Filler complications such as skin necrosis and blindness from injection inside blood vessels and arteries. But, thread lifts also have complications. It is less safe to get this procedure done if you are still smoking.

PDO Threads are 100% safe. Many people assume threads are new technology, when in fact, the suture material used in procedures is identical to the sutures used by surgeons in heart surgeries and suturing internal wounds for the last hundred years. No medical procedure that involves placing a foreign body inside your body is 100% risk free, but threads carry about the same liklihood of complication as dermal fillers.
There are definite advantages to PDO threads vs dermal fillers. For patients looking to avoid adding bulk, Threads are a very viable solution. While fillers add volume, a Threadlift is all about lifting and repositioning. Another advantage of threads is they are generally about half the cost of fillers.Finally, many brands of PDO Threads (like MINT, for example) are design to stimulate collagen and elastin production from within the skin. If you've been smoking for a long time, there may be adverse effects on the skin that could benefit from an extra boost of collagen.
Congratulations on quitting smoking. Your skin will thank you!