l carnitine pro L-Carnitine – Here is a BERRY good

[Abstract] Compared with guinea pigs receiving periocular injections of vehicle (5 mM, 10 L on days 1, 4, 7, 10, and 13 over two weeks), those treated with glutathione oxidized (Glu, 20 mg/mL, 10 L on the same schedule) exhibited a 1.76-fold increase in relative myopia, along with a 1.78-fold increase in axial length (AL)

doi:10.1056/NEJMcp1816152 Patil SP, Ayappa IA, Caples SM, Kimoff RJ, Patel SR, Harrod CG

High quality human clinical trials studying the combination are limited, and people with diabetes or kidney disease should be cautious and consult a clinician before starting

What makes it special is what it doesn't do: unlike other peptides in its class, it doesn't raise cortisol (your stress hormone) or prolactin, even at doses 200 times higher than needed