Prohormones and young athletes

We have a lot in the media about Anabolic Steroids and teenagers who have abused them having no clue what they are doing. This has the unfortunate effect of a biased opinion whenever I try to get an honest answer. My question today graduates to pro hormone use, I hear from people it is always bad to take pro hormones as a younger athlete.
As I understand it, when one injects testosterone (lets say Testosterone Enanthate) the body converts (with an enzyme) the excess testosterone into estrogen. The pituitary gland also senses this huge influx of testosterone and sends a message to the testes in the form of Oestrogen to shut down the bodies natural production of testosterone.
But lets say one consumes a pro hormone (not an AAS) that doesn't convert to estrogen, even if one took Tamoxifen a long with it for a short cycle (3-4 weeks) would it shut the bodies natural production of testosterone down? Would you even need Tamoxifen if it didn't convert to estrogen?
Increased testosterone can also lead to liver damage, hair loss and increased acne due to oily skin, as well as an enlarged prostate.
Can I have an honest scientific answer besides the typical "drugs are bad mmmkay." ?
I also always see the response " as a younger athlete, hormone levels are already high enough" This may be true, being hearing about people gaining 10 lb's of muscle while simultaneously losing body fat makes these compounds desirable to teenagers. If school actually taught us WHY and HOW drugs affect our bodies teenagers would be less likely to take them.
I thank you if you can answer my questions
-Jake

[Dr Vinod]

Hello!

Tamoxifen is completely different from testosterone. Tamoxifen in women has opposite actions on breast and useful for breast cancers. Tamoxifen is helpful in male infertility and also has other actions which are beneficial like improvement in bone mass and lowering coronary artery disease.

But long term use of testosterone and other steroids have transient effects and there is no scientific evidence that performance is enhanced. There is abuse liability so I would suggest you to follow up with a physician or endocrinologist for case to case prescriptions.

Take care!

[Jake_A]

I understand Tamoxifen is completely different from testosterone, I mentioned it because many people take Tamoxifen during a steroid cycle to stop the body from shutting down it's natural production of testosterone and stop testicular shrinkage.

My question was whether a pro hormone that doesn't aromatize to estrogen would shut down the bodies natural production of testosterone. Because that would essentially limit the need for an aromatase inhibitor.