I am 37 and wanted to try this product as I’ve been hearing about different testosterone boosters and wanted to give it a try at my age. I reviewed several products before selecting this one to try and I’m glad I did. It worked great for me. I noticed longer lasting energy while working outdoors and less fatigue. Didn’t notice the decrease in belly fat, however I attribute that to drinking 2 beers every night! I did notice a huge increase in stamina and libido, as well as experienced increase in “ropes” which is awesome! When I cycle down from it, I can’t wait to cycle back up. I have and will be buying this product again and I’m glad I got it right the first time, when picking one of these products.
DHT is a potent agonist of the AR, and is in fact the most potent known endogenous ligand of the receptor. It has an affinity (K d ) of to nM for the human AR, which is about 2- to 3-fold higher than that of testosterone (K d = to nM)  and 15–30 times higher than that of adrenal androgens .  In addition, the dissociation rate of DHT from the AR is 5-fold slower than that of testosterone.  The EC 50 of DHT for activation of the AR is nM, which is about 5-fold stronger than that of testosterone (EC 50 = nM).  In bioassays , DHT has been found to be - to 10-fold more potent than testosterone.