In hippocampal neuron cultures, Dihexa was reported to induce spinogenesis and synaptogenesis at picomolar concentrations the basis for the widely-cited seven orders of magnitude more potent than BDNF potency figure
In eukaryotes, GSTs are divided according to their cellular localization into at least three major families of proteins, namely cytosolic GSTs, mitochondrial GSTs and microsomal GSTs 1,2,6
However, he mentions people use anywhere between 1 and 10 g, so a small amount within this range would be close to 1 g
Also, "consider using skin care products like retinols and antioxidant serums that encourage collagen production and protect skin from the damaging effects of free oxygen radicals," he notes
Some peptides haven't been thoroughly tested, but they're considered generally safe.
However, no human trials exist