Review on iSatori Bio-GRO Protein Synthesis Amplifier: Boost Muscle Growth, Recovery, and Strength with Proline-Rich Peptides - Unflavored (120 Servings) by Chris Byers

Definitely good for muscle building and post workout recovery. When I was in my 50s and lifting weights after a long break from the gym, I was looking for an edge. I think I found it in this product. To be honest, it's difficult to be precise with these good results. Could there be more rest between workouts, other supplements? It's pricey for a daily serving, but I'd rather save money by not buying junk food and give my muscles a head start. I spent a lot of time reading reviews of supplements before buying. On my second container.