I have a history of cycling exogenous testosterone cypionate prior to physique shows and had always since struggled to get my natural test levels back to an acceptable level. Im convinced that my mito max has even been superior to the use of HCG for improving libido and getting my testosterone levels back to an optimal level post cycle. My testosterone is now back to near 600ng/dL and this is after 5 continuous years of on/off use of PED/s(anabolics) and suppressive supplementation. Ive seen tremendous improvements as well in reduced muscle soreness used post wo and improved overall endurance and activity tolerance and energy used prewo. Ive also seen signifiant improvement in my GI tract, digestion, skin health, mood and immune function. the benefits have literally been across the board.