Refrigerate at low temperature.
AVILAN requires low-temperature refrigeration. The component of PLLA (poly-L-lactic acid) microspheres in AVILAN Tongyan injection is a regenerative injectable filler in powder state. There is an asymmetric carbon atom in this molecule, which has Optical activity.
Avilan is an NMPA-approved PLLA facial filler, mainly used to improve moderate to severe nasolabial fold wrinkles. Utilizing active regeneration mechanism: PLLA microspheres will degrade into lactic acid when entering the skin. Lactic acid can combine with skin fibroblasts to activate the production of type III and type I collagen to fill depressions and wrinkles.