this post was submitted on 02 Apr 2024
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Also looked into this as well, there's likely much more vegan stuff out that that you can find than what I listed, but I stopped looking once I found what I wanted. For active ingredients, estrogen itself is vegan, presuming you are not taking the now outdated Premarin. For inactive ingredients, it depends
I was mostly focusing on the US looking at the list of approved medications by the FDA. You can find all US approved medications on https://dailymed.nlm.nih.gov/dailymed/index.cfm. There seems to be a similar one in Canada at https://health-products.canada.ca/dpd-bdpp/
for instance try searching "ESTRADIOL VALERATE" and then click on one of the options that comes up, and then the Labelling information PDF has information about ingredients
As far as I can tell, every Estradiol injection on the US market appear to be vegan minus one single one using Premarin^1^ (you'd have to specifically be prescribed Premarin for that, which is not common at all). In Canada, I suspect it is the same. See the site above if you'd like to confirm that for your self
For estrogen patches, the Mylan patch seems to be vegan, but I have read bad reviews about the adhesive not working super well. Other patches may be, but unsure due to containing Oleyl Alcohol and one that has "fatty acid esters" which can be sourced from both animal and plant sources. You'd have to contact manufacturers to confirm which I didn't do
For other forms of estrogen, I am unsure since I didn't look into the others that closely
For Spironolactone
For other Antiandrogen, I am not sure since I didn't look into them. You can also try doing estrogen monotherapy and not using any Antiandrogen which is another common way people do feminizing HRT
^1^ Labeled as "PREMARIN (CONJUGATED ESTROGENS) INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION" and it also has lactose for some reason