We can supply you as follows: L-Carnitine L-Carnitine L-Tartrate L-Carnitine Fumarate L-Carnitine Orotate L-Carnitine magnesium citrate Acetyl-L-Carnitine HCL DL-Carnitine HCL DL-Carnitine orotate N-Acetyl-L-Carnosine L-Arginine L-Serine DL-Methionine L-Valine
We can supply you with L-Serine. The assay is 98.5~101.5%. Our product conforms to USP26 or AJI92 Standard.