12 Day Complete Detox Program, Koh Phangan, Thailand

Eleven nights on Koh Phangan built around a specific mechanism: self-administered colema treatment, with the Orion Healing Centre providing private equipment and a choice of additive (coffee, apple cider vinegar, or garlic), up to twice a day on fasting days. Two pre-cleanse days open the program with liver flush drinks made from fresh orange juice, lime juice, garlic, ginger, and olive oil, and a private health assessment and consultation sets the plan before that begins. Daily yoga and meditation classes run alongside a daily wellness meeting for guidance through the process, plus two 60-minute oil massages and a 60-minute Reiki session over the stay.

Watch out: this is a medical-adjacent procedure, not a spa treatment — colema (colonic irrigation) requires its own private equipment and a walkthrough before use, and the program includes a private health assessment for a reason. Anyone with underlying health conditions should get medical clearance before booking rather than rely on the on-site consultation as a substitute.

Meals include breakfast, lunch, and dinner, layered around the two pre-cleanse days that run on liver flush drinks instead of solid food. Specialized workshops are part of the core program, but the exclusions list separately flags workshops that happen on-site as needing extra cash — worth clarifying which is which before assuming everything on the schedule is prepaid. A currency exchange point sits about a five-minute walk from the centre, which matters given how many small on-site costs the exclusions list calls out individually.

Insider Tip: the free cancellation window runs a full 60 days out — the longest of any comparable program on this list — useful given how far in advance a 12-day commitment like this usually gets booked.

At 4.28 stars from 214 reviews, the rating sits lower than the yoga-focused retreats on Koh Samui and Phuket, which tracks with how much more physically demanding a colema-and-fasting program is compared to a standard yoga week. Stand-up paddleboards and use of the Wellness Lounge round out the downtime between sessions, though the core of the 12 days is the detox process itself, not resort amenities.