Hamilton Wellness Center specializing in colon hydrotherapy services, offers 2 locations in the East Bay Area outside of San Francisco, CA. Founded by Alice DiMaggio, the Lafayette office was established in 1998 and the Brentwood office was opened in 2006.




Alice DiMaggio

Alice Dimaggio Certified Colon ydrotherapistAlice DiMaggio is a Nationally Board Certified Colon Hydrotherapist who is passionate about providing a dignified and pleasant experience to each client. As owner of Hamilton Wellness Center since 1998, clients benefit from her many years of knowledge and experience.

Alice’s journey to colon hydrotherapy began with her sister’s health challenges. While researching ways to help her sister, Alice began taking her to colon hydrotherapy sessions. As her sister’s health improved, Alice was intrigued by the process and the effects of the sessions. She initially earned her massage therapist certification to assist in colon hydrotherapy training. Soon after, she earned two I-ACT (International Association for Colon Hydrotherapy) certifications. Colon Hydrotherapy was the perfect avenue for Alice to work in the health field and help others on their road to wellness. As a member of the I-ACT organization, Alice frequently attends national conventions and continuing education seminars.









Roseann Johnson

Roseann JohnsonRoseann Johnson’s knowledge in the fields of cleansing the body and nutrition come from years of formal and most importantly personal experience. Years ago she was faced with a health challenge that changed her life in regards to diet, nutrition and the cleansing of the body. There is nothing that can motivate oneself more than to be confronted with a serious health challenge to restore and make well one’s own body. With more than 20 years of experience of nutrition and diet as a primary focus of her life she possesses the skills and knowledge necessary to be well and to inform others. Her love of the field she has chosen is shown with her compassion for caring and assisting others to live a more vibrant and nutritionally enhanced life.

Not only is she certified in colon hydrotherapy but she is also a certified Nutritional Consultant. She is a member of the International Association for Colon Hydrotherapy ( I-ACT), The American Association of Nutritional Consultants and a holistic health practitioner with the American Association of Drugless Practitioners.