A study of 557 Korean aesthetic physicians discovered prevalent use and success of intradermal PN injections for facial erythema arising from inflammatory dermatosis and repeated laser solutions. 然而，生產人源膠原蛋白的成本不斐，並需要高度純化和安全處理，以確保無病原體污染。加上來源供應受限，也必須遵守嚴格的倫理與法律規範，因此價格昂貴且不易普及。 Article-technique care Directions It... https://friedrichg677hyn4.wikikali.com/user