Testosterone. It’s a necessary male hormone which is the reason you have facial hair, a deeper voice, and made it through puberty. Even more than that, testosterone levels have direct effects on muscle growth, strength, bone mass, sperm production, libido, fat distribution, mood, and your overall quality of life.
Clen (clenbuterol) is all the rage among body builders. Why? Because it’s been shown time and time reduce body fat in a short time while retaining lean muscle, and some suggest it can increase lean muscle mass. Anyone serious about stepping on stage has probably considered using clen. 
Let’s be frank. A lot of us struggle with our rear delt development compared to the rest of our shoulder. Whether it be neglecting them in general or just inefficient training, if you want to build bigger rear delts and have that 3D shoulder look, the first step is to ditch the reverse dumbbell flys.
1. Go for the Stairmaster first
Although this blog is intended to highlight the best supplements for mass building, we must reiterate that supplements alone are not the key to building muscle. Building muscle requires an adequate amount of food, from high-quality sources, with a big focus on protein. A good measure for protein intake is the recommended 0.8g-1.2g per pound of bodyweight. You should also have a mix of both complex and simple carbs, and healthy fats. 
In their 60’s, men have a 50% chance of having an enlarged prostate. By the age of 80, nearly 90% of men will live with BPH, or benign prostatic hyperplasia. That means there’s a pretty good chance that you may develop BPH in your life. Fortunately, certain diets and regular exercise may prevent or reduce the risk of this happening.