You should see a significant rise in insulin-like-growth factor (IGF-1) when on nandrolone phenylpropionate. Research backs this up by showing that nandrolone increases IGF-1 mRNA expression levels in animals (6). And this is important because IGF-1 is a hormone that's key to packing on more lean muscle. Combining this with the nitrogen-boosting effect of NPP, you can really see how this drug has such a strong effect on muscle growth.
Sent from my SM-G930F using Tapatalk
Sent from my SM-G930F using Tapatalk

Comment