The least side-effect heavy option would be to go with a GNRH antagonist like leuprorelin (that's the stuff that's commonly known as puberty blockers). These are often only prescribed to pre-transition kids because they're the most expensive choice, but they may be worth the cost if you can afford them. CPA or spiro should be taken with regular bloodwork to avoid damage to the liver (CPA) or the kidneys (spiro), and bica has a reputation of being less effective than these.
There's also SERMs (selective estrogen reuptake modulators) like tamoxifen which are normally used to treat mamacarcinoma, which could in theory be used to achieve feminizing HRT without breast growth. idk if these are actually in use for this kind of stuff, or if they're available through DIY HRT vendors, but maybe they are an option. I'd research them a lot more if i'd be interested in that kind of stuff, tho, they sound fairly heavy.
But i get where you're coming from and how you view potential risks, it's not as if conventional feminizing HRT 25 years ago would have been kinder on the body and i still would've done that if i would have already been cracked at that time.
The least side-effect heavy option would be to go with a GNRH antagonist like leuprorelin (that's the stuff that's commonly known as puberty blockers). These are often only prescribed to pre-transition kids because they're the most expensive choice, but they may be worth the cost if you can afford them. CPA or spiro should be taken with regular bloodwork to avoid damage to the liver (CPA) or the kidneys (spiro), and bica has a reputation of being less effective than these.
There's also SERMs (selective estrogen reuptake modulators) like tamoxifen which are normally used to treat mamacarcinoma, which could in theory be used to achieve feminizing HRT without breast growth. idk if these are actually in use for this kind of stuff, or if they're available through DIY HRT vendors, but maybe they are an option. I'd research them a lot more if i'd be interested in that kind of stuff, tho, they sound fairly heavy.
But i get where you're coming from and how you view potential risks, it's not as if conventional feminizing HRT 25 years ago would have been kinder on the body and i still would've done that if i would have already been cracked at that time.