As you've likely read, my 5 cents have been
put here.
This ROA is not any worse than any other ROA, in fact it is way better for medicines like
mescaline or dmt imho. For me it is a treasure. The body discomfort compared with other ROAs is nonexistent.
Unfortunately I don't have any experience with the tea, I always work with about 1-2ml of distilled water containing pure extracted
mescaline. Even with that small amount, there may be some leakage, I can't imagine injecting there more than 10ml and being able to keep it in place without problems. In either case it is a good idea to minimize the amount as much as possible, ideally
extract and purify, it is not as difficult, if you take this medicine seriously.
In case you try it, please be sure to sterilize everything (including the tea) as the infection may be way worse than the nausea from oral ROA. If you are cautious it is very safe though.
Rectal ROA = no nausea if you don't overdose, but this is another type of nausea identical to likely any drug
Expect potentiation in range 2/3x to 3x compared to oral ROA. Seems to be dependent on the product. My experience says sometimes it is about 1/3 weaker than oral ROA, sometimes the same. Never stronger. Start with lower dose, of course.
Clean product = pleasant application and cleaner
mescaline experience