The Cavern Screw is made of absorbable PDO collagen protein thread specially made in Korea. It is in a dense tornado shape and has obtained the highest safety certification from the US Food and Drug Administration (FDA). The absorbable PDO (Polydioxanone) fine thread is buried in the dermis layer, and during the process of absorption, the thread produces a large amount of collagen protein to achieve the effect of restoring youth.
PDO Thread Lifting Feature:
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