Osmosis Day Spa Sanctuary

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209 Bohemian Hwy
Sebastopol, CA 95472
Located in scenic Sonoma County, Osmosis is well known for our unique Cedar Enzyme Bath, our rejuvenating massages, organic facials, and our beautiful Zen-inspired meditation gardens.
The one and only Cedar Enzyme Bath in the US.

Reviews

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4.0542 reviews
Photo of Laura B.
Laura B.
11/10/2025

I went to Osmosis for the first time last night with a friend. I booked a 7:30 pm reservation for a 2-person cedar enzyme bath at 9:00 am the morning of (a Sunday). Kelly helped me on the phone &...

Photo of Jenny X.
Jenny X.
10/26/2025

Came here for a day trip and it was awesome! Good: - The cedar enzyme bath is super unique - you get buried in this warm dirt and sit there and really start heating up - it's nice since the...

Photo of Kristi G.
Kristi G.
9/29/2025

Osmosis is tucked away in the adorable little town of Freestone--home to Wild Flour Bakery (a must for bread and scones!) and a cute shop with jewelry, leather goods, and art. It's about a...

Photo of Omayra O.
Omayra O.
10/28/2025

This was such a magical experience. Even in the constant rain the grounds and the bath were enchanting. I loved the well placed amenities. Robes when you needed them, tea when you need them, capes...

Photo of Marquita J.
Marquita J.
4/20/2025

I went here during my visit to Napa Valley for my birthday weekend and everything was decent until the end. Let me explain... I booked the Cedar Bath and Massage appointment. When booking this,...

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