It is thought that the major part of the alkaloids of these cacti is in the skin and green flesh between core and skin (core containing minor concentrations compared to flesh and skin). Now what I'd like to know is which one is the more concentrated in alkaloids, the green flesh or the skin ? well, I ask this question as most suppliers of dried cacti sell the "dried skin cuts", so maybe this isn't good if it's skin only while most alkaloids are in the flesh between core and waxy skin (unless they mean skin+flesh when they say "dried skin"). Any people with experience of such "dried skin"? Was it really the skin only (=weak) or was it dried skin+flesh? Also what would be a very strong dose of T.Peruvianus dried skin (meaning equivalent to 700mg mescaline, intensly psychedelic trip) ? 100g maybe ?