It is possible I'm more sensitive to its effects for various reasons but ime one capsule starts working in 30-45 minutes and I get a noticeable effect affecting mood and bodily sensations. 1 capsule certainly gets me more in touch with the internal world when meditating.

I don't know how much one should talk about this stuff on open forums but it certainly can be a shortcut to achieving or visiting some powerful states of experience, which may not be always be or seem positive at least during, so Ymmv and be safe.