Osmosis Day Spa Sanctuary

Located in beautiful Western Sonoma County, Osmosis is the only day spa in the US that offers the Cedar Enzyme Bath—a rejuvenating heat treatment from Japan.

  • Description
  • Amenities
  • Reviews
  • Located in beautiful Western Sonoma County, Osmosis is the only day spa in the US that offers the Cedar Enzyme Bath—a rejuvenating heat treatment from Japan. We also specialize in a variety of 75-minute massage modalities performed by our community of experienced therapists. In reflection of our commitment to wellness and the environment, we feature an array of organic facials, skin care, and waxing services.

    We welcome you to relax in our authentic meditation garden with a cup of our exclusive blend of organic herbal tea. Shop anytime in our unique spa boutique filled with great gifts and products to support your healthy lifestyle. Gift certificates are available year round for any occasion, either in our boutique or in 30 years! Voted Best Spa by North Bay Bohemian for 17 years running! Named Best Spa North of San Francisco by San Francisco Magazine.

    • Lodging Amenities:
      • Full Spa On-site
    • Spa & Wellness Amenities:
      • Body Therapy / Massage
      • Retreat Center
    • Fantastic massages

      The massages here are amazing. I've been trying to find a place that compares in the Bay Area, and so far haven't had any luck. We've been here twice and will be back again.

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    • Amazing

      I had the best, most amazing massage I have ever had last week. We also had one of their cedar-enzyme baths. Everything is very well thought out. The gardens were wonderful to walk through and...

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    • Bliss!

      Japanese inspired retreat. Very relaxing and rejuvenating. We took the couple cedar bath and massage package. Perfect for a special occasion, or just getting away for a day. Will definitely be...

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