Testosterone therapy has documented effects on sperm production. | nukrist via Getty Images Clavicular says he’s been taking testosterone since he was 14 years old. For the infamous looksmaxxing influencer, the hormone supplement is part of a regimen designed to give him the hollow cheeks, square jaw, and muscular build now coveted by legions of extremely online young men. Testosterone has helped him hone his appearance to the point at which — according to him at least — he can not only attrac