They haven’t been heavily researched, they could give negative side effects we don’t know yet. They are very finicky. For some people they don’t work at all, for some they are basically steroid level. Just depends on your body. But the pro is they are generally inexpensive and some are great. Bpc-157+tb500 isn’t super expensive and gives great results for healing. Overall start with one and try it out, do your research on them though.

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