Probably not dangerous (relatively speaking), but for self-exploration, nothing beats silence and solitude, and this is safer, cheaper, and easier (though not always simple!)

I've done Ayahuasca three times before kids, but won't probably do it again. I have the vague suspicion that "self exploration" is used deceptively, i think it is just another code word for more spark, big bang experience to fill that void most of us feel inside. That was partially the case for me, anyway.

My 2 sats.