l glutathione 250mg Solgar Reduced L-Glutathione 250 mg, 60 : Health & Household Glutathione is additive free ZeroHarm Reduced L-Glutathione 250mg Caps

Equivalent to "Surface GF" on a Shearwater

Synergy in Cytoskeletal and Cellular Migration Mechanisms : At the cellular level, TB-500 enhances actin polymerization and cell motility , while BPC-157 stabilizes the extracellular matrix and promotes fibroblast adhesion

Glycerin is a normal product of fat metabolism and is readily converted to glucose for metabolism

For lyophilized GHK-Cu, stored in a freezer at -20C, you're looking at stability for perhaps 1-2 years, maybe even longer, if stored impeccably

doi: 10.1016/j.molcel.2010.09.022 174 PennacchiettiSMichieliPGalluzzoMMazzoneMGiordanoSComoglioPM

Yes, glutathione does not contain sulfa drugs and is generally safe for individuals with sulfa allergies