Birch Botanical Spa
427 N 6th Street
- Infrared sauna
Services from the studio's own website, checked 27 Oct 2026 · not verified by the studio · not a paid listing
Sauna studios in St. Charles, MO
This page lists 2 studios in St. Charles, Missouri, checked 27 Oct 2026. St. Charles is in the St. Louis metro. St. Peters and O'Fallon have their own pages. Studios in St. Charles, Illinois are not listed here.
Birch Botanical Spa, 427 N 6th Street, lists an infrared sauna. A session is 40 minutes. The member line is $32 for one person, or bring a friend at no extra charge. A non-member session is $40 for one person and $50 for two. The page also says members pay half price. Those two member lines are not the same figure, so this page does not merge them. Hours are not on the infrared page.
Energy Infusion Room, 2510 S Old Hwy 94, STE. 100, lists red light and a dry sauna. Red light is $20 a session. A dry sauna add-on is $10 a session. The same page says the cold plunge is closed for the winter, so a cold plunge is not listed. Hours are Monday to Friday 10am to 6pm, Saturday 10am to 3pm, and Sunday closed. The page also prints overnights 10pm to 7am, and it says a red light membership is 24/7. The dry sauna is not described as an infrared sauna, so infrared is not listed for this studio.
How this list works: free listings are in alphabetical order and are built from each studio's own public website. Studios can pay $29/month to be Featured; Featured listings are paid placements, always labelled "Featured · paid placement (Anzeige)", and never change other listings or any Renvo Score. We don't make health claims and don't rate studios. Nothing here is medical advice.
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Energy Infusion Room
2510 S Old Hwy 94, STE. 100
- Red light
- Sauna
Services from the studio's own website, checked 27 Oct 2026 · not verified by the studio · not a paid listing
FAQ
How many studios are listed in St. Charles?
Two studios, checked 27 Oct 2026. A city page is indexed when it has at least 3 listings. St. Louis lists more studios.
How much does a visit cost in St. Charles?
Birch lists a 40-minute infrared session at $40 for a non-member and $32 for a member, with a friend included on the member line. Energy Infusion Room lists red light at $20 and a dry sauna at $10.
Is the cold plunge open?
The Energy Infusion Room page says the cold plunge is closed for the winter, so it is not listed. Birch does not name a cold plunge.
What are the hours?
Hours are Monday to Friday 10am to 6pm, Saturday 10am to 3pm, and Sunday closed. The page also prints overnights 10pm to 7am, and it says a red light membership is 24/7. Birch does not print hours on the infrared page.
Are these studios ranked?
No. Free listings are in A-Z order. A Featured spot is a paid placement and is labeled. None of the listings on this page is paid.
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Last updated 27 Oct 2026