topical GHK-Cu
The widely repeated claim that Dihexa is "seven orders of magnitude more potent than BDNF" originates from that flagged McCoy paper and reflects an assay-specific in-vitro spine-density measurement picomolar Dihexa versus nanomolar BDNF in one assay not a millions-fold advantage in a living brain
Impact of melatonin, zaleplon, zopiclone, and temazepam on psychomotor performance
Not everyone requires the maximum dose
I'll add BPC157 to that mix as well
Symptoms of low levels of Vitamin B12 in your body include anemia, weakness, fatigue, heart palpitations, pale skin, constipation, diarrhea, bloating, loos of appetite, nerve problems such as tingling or numbness, muscle weakness, loss of vision, mental problems such as changes in mood and depression