Hello. I searched everywhere I could not find the answer. Anyhow, im on TRT using Test Cypionate. My Doc and everywhere I read says it takes 4-6 weeks to see results but its fully in your blood stream within 48 hours. My question is why does it take 4+ weeks to "work" if its in your blood stream? What else does it need to do in your body for it to be considered functional? I though once something is in your blood stream it should have an effect right away. Anyhow, let me know what you guys think about this.