No, booking 12 hours is rarely necessary. While LSD effects can last a long time, many people feel ready to wrap up between about 5 and 8 hours, depending on the dose and the person.
Our standard booking includes 6 hours of guidance. For LSD sessions we suggest adding 1 or 2 extra hours as a buffer. If you want maximum certainty, you can still reserve the full 12 hours.
If you want LSD effects but prefer a shorter timeframe, some people consider a combined LSD and psilocybin session. We cannot verify how any individual will respond, so choose what feels safest for you.
For details on planning and availability, see our LSD therapy page. Hope that clarifies.