Thread Lift for the Neck?

I have been researching regarding the neck thread lift procedure. the doctor in china is using some kind of protein thread, which can stimulate the collage production. Are there two kind of neck thread lifts in Houston, TX? One is only to pull the skin up; another one will stimulate collage production besides the lifting? What is the pros and cons of each one? After 10 years if real neck lift is needed, will doctors need to remove the thread underneath the skin first, before the procedure?

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