DNS Colon Therapy our name says it all. Specializing in Colon Hydrotherapy, we are here to Detox you Naturally and Safely. Using the finest colonic hydrotherapy equipment available, serving Huntington Beach colonic irrigation clients for over 30 years. Peace of mind that Natalie Davis has performed over 60,000 procedures and even wrote a book about colon hydrotherapy and the benefits her clients have received from her treatments.