It is widely used for collagen reproduction to increase the volume of depressed
skin areas for fuller and firmer skin. HA provides moisture to the skin structure,
making it firmer and helping the skin return to its youthful appearance

　PCL is a raw material used in thread lifting. It is a polymer material certified
by the US FDA and is used to improve wrinkles and facial contours. PCL is
called Polycaprolactone. It is a medical polymer that has been used as a drug
release control agent and surgical suture for decades. It is a safe ingredient
certified by the FDA and CE and helps maintain skin elasticity