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The sea is not the only source of salt humanity has ever used. Eastern Europe has always been a reliable source of high-quality salt extracted from mines that are hundreds of meters below ground. In fact, the rock salt (also known as halite) from Romanian salt mines is considered the best-quality salt there is. That’s why, to make our salt rooms, we visited Praid, the Transylvanian village famous for its salt and used it to inspire our halotherapy treatments. 

Our Process..

  • We mount our salt rooms with an organic adhesive that we crafted and refined ourselves

  • Using the adhesive, we mount our salt rooms with patented salt tiles with the highest quality of unprocessed and natural salt, from salt mines in Praid and Dej, Romania

  • As per specifications from our professional salt extractor, the salt we use is composed of a minimum of 97% Natrium Chloride (NaCl), the rest being natural, insoluble and non-harmful elements

  • The humidity of our salt is maintained at a maximum of 2%, for its natural properties to optimally take effect

  • A ventilation system helps create and maintain the saline environment we need

  • Based on scientific and mathematical calculations from specialists in the Praid Salt Mine, and readings from our (insert device name), we confirm that the air in our Salt Cave is 3% natural saline, which is ideal for halotherapy


We are excited to show you more about the process through our gallery and our salt cave right here in Borehamwood, UK!

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Why us?

At Salt Cave Halotherapy, we refuse to use artificially ventilated aerosol salt or electronically grinded salt. We do not process our natural salt. Instead, we replicate the exact palliative conditions found in Eastern European salt caves by personally sourcing raw salt, directly from salt mines in Praid and Dej, Romania.  To mount this salt, we have also developed a 100% natural and patented adhesive, which enables our salt to release its organic properties.

More than Halotherapy..

Salt Cave Halotherapy is more than just a place to avail of halotherapy’s natural and health-improving properties. Here at Salt Cave Halotherapy, we have created relaxing treatments and spaces to meets your wellbeing needs. Our unit in Borehamwood, is the largest artificial salt cave in United Kingdom. Our premiere salt rooms are purposefully designed to avoid feelings of claustrophobia and to cater to different ages. We have two separate spaces: a medium-sized room built exclusively for adults, and a large room designed especially for children. 

Adults Room



Disconnect from the outside world for 50 minutes as you breathe in the rich benefits of our salt. Relax in our massage chairs, while listening to calming music and the soft gurgle of our water fountain.

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  • Luxurious salt room with medicinal grade salt

  • Ambient lighting

  • Four VidaXL massage chairs equipped with back heater function 

  • Real water fountain

  • Nature themed music on flat screen TV

  • Optional medicinal and aromatic salt sachets for your chest 

Kids Room

Kids Room

Enjoy 50 minutes of salt’s health benefits with the children, where they can play, learn and socialise in a healthy, controlled environment. 

Since we want everyone to be safe, we ask that all children below 12 years of age are supervised by an adult. At Salt Cave Halotherapy, we value the efforts you make to expose children to salt’s health-improving properties. We don’t think it’s fair that guardians supervising their children should miss the chance to relax, so our children’s room includes seven adult VidaXL massage chairs.  


  • Luxurious salt room with ambient lighting

  • Seven VidaXL massage chairs equipped with back heater function

  • Heated salt pillows are offered for every session

  • A generous amount of toys

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