Osmosis Day Spa Sanctuary

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Treat Yourself to Sonoma County's Premier Destination Day Spa

Come and experience your own transformation in this beautiful and healing sanctuary. Enjoy the magnificent location, a staff devoted to your wellbeing, authentic Japanese gardens, the rejuvenating Cedar Enzyme Baths, and marvelous massage and organic skin care.

Welcome to Paradise
Nestled between River and Coast, redwoods and vineyards, Osmosis is close to everything wonderful in Western Sonoma County...and only 60 miles from San Francisco! Plan your visit with our lodging, restaurant and activity guides. Learn more about our fascinating area - one of the most beautiful destinations in Northern California. And SO easy to reach by car or commercial flight directly into Santa Rosa (STS).

Experience our Renowned Cedar Enzyme Bath
Experience transformation in the only Cedar Enzyme Bath in North America and discover its powerful health benefits. Immersed in a warm bed of softly ground evergreens, your body is evenly supported with a gentle, penetrating heat. The warmth is generated biologically by fermentation. The bath boosts your metabolism and circulation, casts your skin in a radiant glow, and is profoundly relaxing.

Enjoy a 75-Minute Massage or Organic Facial
The healing power of good hands remains the best way to relieve stress and revive body and soul. We specialize in exceptional 75-minute massage. Every day our guests tell us “that was the best massage of my life.” Look and feel fantastic with a rejuvenating organic facial. Our botanically derived, certified-organic skin care products will amaze you.

Feel Rejuvenated in Our Meditation Garden
The culmination of the Osmosis experience is the Meditation Garden on our very private 5-acre sanctuary. This serene Zen garden will move you to deeper levels of inner peace and tranquility. It’s the perfect place to savor the increased levels of sensory awareness and well-being that follow spa treatments.

Osmosis Gift Certificates make a great gift, even last-minute. Call

Stay in the know about upcoming events, special offers and community information.

Check our Monthly Specials for new opportunities each month. Upcoming events are listed here.

A vivid view of the spa and the entire Cedar Enzyme Bath experience.

Osmosis is a Green Spa
As a founding member of Green Spa Network, we are leading the way in bringing sustainable practices to the spa industry. Greening Osmosis is an ongoing process. We've just built a constructed wetlands to recycle our graywater. Learn more about our newest greening project.