Physician-Supervised · Encinitas, CA
HOCATT™ Ozone Sauna
A Whole-Body Wellness Technology
HOCATT™ stands for Hyperthermic Ozone & Carbonic Acid Transdermal Technology — a non-invasive bio-chamber that delivers a carefully sequenced combination of technologies in a single session.
SynergyO3 is an authorized HOCATT™ center, offering patients the Power of 10 HOCATT™ technologies in Encinitas, California. During a session your body is enclosed in the cabin while your head remains outside in fresh air — commonly known as an ozone “sauna.” Each session is reviewed by Dr. Heather Volpp, MD.
HOCATT™ is a wellness technology, not a medical device. Benefits described are associated with the individual technologies it combines, and individual results vary.
Each technology is sequenced to work alongside the others. What follows describes what each individual technology is generally known for.
Transdermal Ozone
Medical-grade ozone is introduced into the sealed cabin and absorbed through the skin. Ozone is associated with supporting detox and oxidative balance.
Carbonic Acid (CO₂)
The session opens with CO₂-rich carbonic acid gas. Carbonic acid is associated with vasodilation and improved circulation, helping prepare the body for the session.
Far Infrared (FIR) Sauna
Far infrared saunas are associated with raising core temperature and promoting detox through sweat, while supporting circulation and relaxation.
Photon Light & Color
Specific wavelengths of light are associated with supporting skin appearance and an overall sense of wellbeing during the session.
PEMF · HUGO™
PEMF (pulsed electromagnetic field) technology is associated with supporting cellular energy and circulation. Available with the HUGO™ system.
Frequency Specific Microcurrent
Low-level microcurrent at therapeutic frequencies is associated with supporting comfort and recovery.
More Than a Sauna — Several Technologies, One Session
A traditional sauna offers a single experience: heat. HOCATT™ sequences several wellness technologies into one 30-minute session, each timed to work alongside the others — all under physician supervision at SynergyO3.
Heat.
A single experience.
One session, several technologies
Transdermal ozone, carbonic acid, far infrared, photon light, and PEMF (with the HUGO™ system) are delivered in a single sequenced session, rather than one modality at a time.
Head-out comfort
Your body is enclosed in the cabin while your head stays outside in fresh air — commonly known as an ozone “sauna.” A non-invasive, needle-free option.
Physician-supervised
Every session is reviewed by Dr. Heather Volpp, MD, and tailored to your goals — a key difference from unsupervised wellness settings.
What a session feels like, start to finish
PREPARATION & ENTRY
You sit comfortably inside the HOCATT™ cabin with your head outside in fresh air. A soft neck seal keeps the gases inside the chamber. Dr. Heather Volpp reviews your protocol before each session.
CARBONIC ACID PHASE
The session opens with CO₂-rich carbonic acid gas for several minutes, supporting circulation and preparing the skin for the phases that follow.
OZONE STEAM PHASE
Medical-grade ozone and steam fill the cabin. Ozone is absorbed transdermally through the skin for the remainder of the session.
INFRARED & PHOTON PHASE
Far infrared and photon light continue throughout, supporting detox through perspiration and a sense of relaxation. Your session concludes with a brief cool-down.
By sequencing several technologies in one session, HOCATT™ supports the body’s own wellness processes. The associations below reflect what the individual technologies are generally known for. Individual results vary.
Detoxification Support
Far infrared sweat combined with transdermal ozone is associated with supporting the body’s natural detox processes.
Circulation & Oxygenation
Carbonic acid and ozone are associated with improved circulation and oxygen delivery throughout the body.
Energy & Vitality
The combined technologies are associated with energy management and a renewed sense of vitality.
Immune Support
Ozone is associated with supporting healthy immune function.
Skin & Rejuvenation
Photon light and ozone are associated with supporting skin appearance, tone, and clarity over repeated sessions.
Relaxation & Recovery
Infrared warmth is associated with relaxation; the session is popular for athletic recovery and lifestyle management.
Is this you?
HOCATT™ is popular with patients focused on general wellness and optimization goals, including:
General wellness, detox, and longevity goals
Energy, vitality, and lifestyle management
Athletic recovery and performance
A non-invasive option for those who are needle-averse
Maintenance sessions between EBOO visits
Weight management as part of a broader plan
Not Sure If HOCATT™ Is Right for You?
Dr. Heather Volpp reviews each patient’s history and goals before recommending a HOCATT™ protocol. Request an appointment and we’ll tailor a plan to your biology — alongside your existing care.
Every Protocol Designed and Supervised by Dr. Volpp
Dr. Heather Volpp, MD
Board-Certified Internal Medicine (ABIM) · Fellowship-Trained in Allergy & Immunology
— Dr. Heather Volpp, MD
HOCATT™ at SynergyO3 is delivered in a physician-led clinic, not a spa. Dr. Heather Volpp, MD — Board-Certified in Internal Medicine (ABIM) and fellowship-trained in Allergy & Immunology — and her team review your history and goals through a whole-body discovery, then tailor a HOCATT™ protocol to you. Our approach is designed to work alongside your existing care, never to replace it.
- Whole-body discovery before any protocol is recommended
- A written quote before any session — no surprises
- Designed to complement your primary medical care
Two ways to begin
Physician-supervised sessions in Encinitas, CA. No hidden fees.
Single Session
- 30-minute HOCATT™ session
- Power of 10 technologies
- Physician-supervised protocol
- Personalized settings each visit
10-Session Package
$144/session · save $160
- 10 HOCATT™ sessions
- Physician-supervised each visit
- Pay for 9, receive the 10th free
- Ideal for ongoing wellness protocols
All sessions are supervised by Dr. Heather Volpp, MD. A consultation is recommended for first-time patients. Pricing subject to change.
HOCATT™ Questions, Answered
HOCATT™ stands for Hyperthermic Ozone & Carbonic Acid Transdermal Technology — a non-invasive bio-chamber that delivers a sequenced combination of wellness technologies (the Power of 10) in a single 30-minute session. It is a wellness technology, not a medical device.
A regular sauna provides heat alone. HOCATT™ combines several technologies — transdermal ozone, carbonic acid, far infrared, photon light, and PEMF — sequenced in one session, with your body enclosed and your head outside in fresh air, all under physician supervision.
You sit comfortably in the cabin with your head outside in fresh air. The session opens with carbonic acid, followed by ozone steam, with far infrared and photon light throughout, and a brief cool-down. Many patients find it relaxing.
Each session is about 30 minutes. A single HOCATT™ session is $160; a 10-session package is $1,440 ($144/session — pay for 9, receive the 10th free). You’ll always receive a written quote before any session.
HOCATT™ is popular with patients focused on general wellness, energy and vitality, lifestyle management, athletic recovery, and detox goals — and with those who are needle-averse or want maintenance sessions between EBOO visits. Dr. Volpp reviews each patient’s history before recommending a protocol.
Yes. HOCATT™ is often used as part of a broader, physician-designed wellness plan and is popular for maintenance alongside EBOO. Dr. Volpp will tailor the combination to your goals.
Insurance is not accepted, but we can provide a super bill you may submit to your HSA or FSA for possible reimbursement.
Still have questions? Call (760) 450-4602.
Ready to Experience the HOCATT™ Power of 10?
Schedule a session with Dr. Volpp. We’ll review your health history and goals, then design a HOCATT™ protocol built around your biology — to complement, not replace, your primary care.
HOCATT™ and HUGO™ are trademarks of Signature Health Ltd. HOCATT™ is a wellness technology, not a medical device, and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Statements on this page have not been evaluated by the FDA. Individual results vary. Consult with Dr. Heather Volpp, MD during your appointment. All sessions at SynergyO3 are supervised by Dr. Heather Volpp, MD — Board-Certified Internal Medicine (ABIM) — and are intended to complement, not replace, your primary medical care.