DIYHRT

Learning more about DIY HRT:

The DIY HRT wiki has thorough guides for both transmasc and transfem HRT. https://diyhrt.wiki/

The DIY HRT community on Reddit, a good place for asking questions and learning. https://www.reddit.com/r/TransDIY/

If you're a bit of a nerd and want to get in depth (transfem): https://transfemscience.org/

Sourcing HRT (transfem): https://diyhrt.market/ https://hrtcafe.net/

Sourcing HRT (transmasc): Check eroids for trusted sources that ship to your country https://www.eroids.com/reviews

Other useful tools:

Injectable Estradiol Simulator: https://transfemscience.org/misc/injectable-e2-simulator-advanced/

Estradiol measurement conversion tool: https://unitslab.com/node/113

Testosterone measurement conversion tool: https://unitslab.com/node/136