Supplier Page from Thermo Fisher Scientific for MEM chloride, 94%
Benzalkonium chloride, alkyl distribution C8-C16, 50 wt% aqueous solution from Thermo Fisher Scientific
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific