Hydrolauronic acid in used it proprietary blends for facial dermal filling. But it is temporary and mixed with other stuff. After who knows how many treatments a wrinkle fills out. Big deal , it has to be done over and over. Also, stuff like pump and pose might use lidocaine for pain but lidocaine can build up and cause tissue death and too much can theoretically cause lethal arrhythmias. I never trusted synthol. If we spot shoot grape seed oil based gear and it stayed in the delt it would cause the body to initiate infection…to het that shit out.