I've been doing igf-1 Des for 4 months everyday 5 min preworkout with no gains. At first my dosing was 200mcg then after seeing nothing I upped it to 400mcg and now 800mcg, I've stopped because I didn't notice anything, was my source (nootropic) just bad, or did I desensitize my receptors?
Also on a side note could I inject lactic acid into my muscles to get better and easier gains?