Understanding the different types and benefits

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Mono Threads

Mono threads are smooth threads without barbs. Mono threads are usually placed into the face in a mesh-like fashion for skin tightening effects by improving and stimulating collagen formation around the thread.

Mono threads are often used on necklines, neck sagginess, forehead, and under eyes. Although effective in the stimulation of collagen production and synthesis, mono threads are generally effective only for tightening the skin but not lifting. Mono thread treatments may be carried out with PDO, PCL, or PLLA type threads. Read on to learn the difference...

Screw Threads

Screw threads are sometimes known as Tornado threads. They are often in the form of single or double threads intertwined together around the inserting needle. These threads provide effective restoration of a sunken profile. Naturally, the intertwining threads have a stronger effect over the singular threads providing exceptional face-lifting results.

Before Surgery


Cog threads are essentially mono threads with barbs designed to hook to the underside of the skin. These barbs are usually either cut or molded as part of the thread and purposed as a support structure to lift sagging tissues. In the case of cog threads, collagen formation will occur around both the threads and barbs; making it most effective for significant lifting. Cog treatments may be carried out with PDO, PCL, or PLLA threads. Read on to learn the difference...

Polycaprolactone (PCL):

Polycaprolactone (PCL) threads offer enhanced longevity. This is due to the nature of the chemical bonds and structure in PCL, which make it stronger and more complex, hence it takes a much longer time to be dissolved completely. PCL is also known to be very potent at stimulating collagen production when compared with PDO or PLLA. Once dissolved, the material breaks down into non-toxic biocompatible substances and even after the thread has dissolved, collagen production can last for up 16-24 months following treatment.

Polydioxanone (PDO)

The effects of polydioxanone (PDO) threads can last between 6 to 9 months, with threads completely dissolved and absorbed by the skin after 6 months.

The functions of PDO have been known to cause changes in the dermis and many studies have shown that it is effective in improving pores and fine wrinkles.

Fat cells have been observed to have denatured by the granulation tissues in the area of treatment. Proving that PDO threads, if used correctly, can be very effective in face shaping, contouring, and rejuvenation procedures.

Poly-L-Lactic Acid (PLLA)

Another material often chosen for threads is Poly-L-Lactic Acid (PLLA). The PLLA thread has been observed to be even more effective at stimulating collagen production than PDO, and with a longer lifespan of 14-18 months.

Also used as an alternative to fillers and botulinum toxin, PLLA can function as a volumizer and is able to stimulate the production of Type 1 and Type 3 collagen. One benefit of using PLLA over PDO threads is that it causes almost no inflammatory reaction to the surrounding tissues, yet delivers similar, if not better results.