Test Propionate vs Test Cypionate: Short ester is more beneficial to maintain the function of HPTA

When Bodybuilders used testosterone esters to build muscle, they found that long ester Test Cypionate had more sexual side effects than short ester Test propionate, and these side effects mainly showed inhibition of HPTA(natural testosterone levels) and low libido.

The use of exogenous tests can suppress natural testosterone production, but exogenous tests can replace some of the effects of testosterone. Therefore, most of the time, if use an exogenous Test, rather than other forms of androgen, such as Nandrolone and Drostanolone, you will not feel significant symptoms of low testosterone. Extensive user data has shown that people who use test long ester are more likely to experience side effects in terms of sexual function. The possible reasons are as follows:

Shorter esters are closer to natural testosterone

The half-life of naturally secreted testosterone is very short, and the half-life of testosterone after the addition of ester can reach as long as 15 days. Test Propionate half-life is about 4 days, test cypionate half-life is about 12 days.

Bodybuilders use long esters to pursue long-term stable testosterone levels because stable testosterone levels help users better engage in bodybuilding, which benefits muscle mass and strength growth. However, maintaining high testosterone levels in the body will continue to inhibit HPTA and affect HPTA’s response to the hormone.

Most hormones in the body are produced intermittently, including testosterone. Natural testosterone levels in the body are different from time to time, with distinct peaks and troughs. Over-stable testosterone levels are contrary to the naturally secreted testosterone levels and are not conducive to maintaining the function of HPTA.

Advantages of long esters

One reason people don’t like the short ester is that it requires frequent injections and is more cumbersome. In fact, unless it’s TRT, bodybuilders actually never wait a week to Test Cypionate with a second injection. They will choose M/W/F, EOD, or even ED for better results. In fact, short esters, in addition to benefiting HPTA, also help control side effects, including estrogen side effects. So frequent injections aren’t a problem for bodybuilders.

People prefer long esters because of the stable testosterone levels they provide. When using test short ester at a low testosterone level, users who have been at a high testosterone level suddenly drop in testosterone levels, just like people who have been excited for a long time suddenly quiet down, will be a little tired and lost. But why not take a good rest at this time and give your body a time to recover. It is impossible to stay in a high phase without rest, and HPTA is the same.

Conclusion

Having said all this, I’m not telling you to switch to test short ester. Long esters (such as Test Cypionate) do provide stable testosterone levels, and long-term stable testosterone levels help build muscle quickly, so if on test long esters, there is no low libido, no high estrogen, etc., you are well adapted and it is suitable for you. If you are experiencing these side effects, consider a short ester, such as Test propionate.