Prolozone Therapy: A Patient Education Guide

Important Notice: Prolozone therapy is considered an alternative, non-surgical regenerative treatment. It is generally not covered by Medicare or commercial health insurance. This fact sheet is educational and does not replace Naturopathic medical advice, diagnosis, or treatment.

Table of Contents

1. Introduction
2. Why Oxygen Matters in Joint Healing
3. Why Joints May Have Less Oxygen Over Time
4. What Is Ozone (O3)?
5. How Ozone Is Created for Prolozone Therapy
6. What Is Prolozone Therapy?
7. How Ozone Works at the Molecular Level
8. Summary of Potential Benefits
9. Conditions Prolozone Therapy May Treat
10. Who May Benefit from Prolozone Therapy?
11. Medical Literature and Evidence Base
12. Potential Benefits
13. Risks and Possible Side Effects
14. What to Expect During Treatment
15. Post-Injection Guidelines
16. Typical Injection Frequency for Knee Osteoarthritis
17. Conclusion
18. References

1. Introduction

Ozone therapy has a long history in integrative and alternative medicine, initially developed for its antimicrobial and anti-inflammatory properties. Prolozone therapy is a derivative, coined by Dr. Frank Shallenberger, that merges ozone therapy with proliferative therapy, also known as prolotherapy. Specifically, intra-articular Prolozone injections involve delivering a combination of oxygen/ozone gas and other regenerative substances directly into joint spaces. The goal is to stimulate repair of damaged cartilage, ligaments, and other soft tissues while reducing pain and inflammation in a minimally invasive manner.

Prolozone therapy is used to treat a variety of orthopedic issues. The principle behind Prolozone therapy is that inadequate oxygen circulation may interfere with healing. By improving oxygen availability and stimulating local healing responses, Prolozone therapy aims to support tissue repair and reduce musculoskeletal pain.

2. Why Oxygen Matters in Joint Healing

One of the most important aspects of healing is ensuring that the injury site has a steady supply of oxygen. Oxygen is essential for cell growth and regeneration. Without adequate oxygen, wounds and injured tissues may take longer to heal. In some cases, prolonged lack of oxygen can contribute to tissue breakdown or tissue death, which may further complicate the healing process. For this reason, supporting oxygen delivery to injured tissues is an important part of promoting proper healing.

3. Why Joints May Have Less Oxygen Over Time

Joints tend to have less oxygen as we age or after injury due to a combination of biological and structural changes.

Reduced Blood Flow

• Aging: Blood vessels around joints may become narrower and less efficient, reducing oxygen delivery.
• Injury: Swelling or damage can compress blood vessels, restricting blood flow temporarily or long-term.

Cartilage Has No Direct Blood Supply

Cartilage, which cushions joints, relies on diffusion from nearby tissues for oxygen and nutrients. This process can become less efficient with age or inflammation.

Cellular and Structural Changes

• Aging: Cells in joint tissues may become less active and responsive, slowing oxygen use and healing.
• Injury: Inflammatory processes can increase oxygen demand while simultaneously disrupting oxygen supply.

Synovial Fluid Changes

Synovial fluid nourishes and lubricates joints. Its composition and oxygen-carrying capacity may decline with age or trauma, affecting joint health.

Key Takeaway: Reduced blood supply, aging tissue, inflammation, and less efficient diffusion may all contribute to lower oxygen availability in joints over time or after injury.

4. What Is Ozone (O3)?

Ozone is a molecule made up of three oxygen atoms (O3). It is a high-energy form of oxygen that is unstable and highly reactive compared with the oxygen we breathe (O2). While ozone in the upper atmosphere protects us from ultraviolet radiation, medical ozone has powerful oxidative and biological properties when used under controlled medical conditions.

5. How Ozone Is Created for Prolozone Therapy

In Prolozone therapy, ozone is created from medical-grade oxygen (O2) using an ozone generator.

• Electric discharge (corona discharge): The generator applies a high-voltage current to medical-grade oxygen (O2), splitting O2 molecules into single oxygen atoms (O).
• Recombination: These single oxygen atoms quickly recombine with O2 molecules to form ozone (O3).

O2 → 2O
O + O2 → O3

This is performed under controlled medical conditions to help ensure the appropriate concentration, commonly described in the range of 1–40 micrograms/mL for therapeutic use.

6. What Is Prolozone Therapy?

Prolozone = Proliferation + Ozone

Prolozone is an injection therapy used to treat musculoskeletal pain and injuries. It may include:

• Ozone gas (O3)
• Procaine or another local anesthetic
• Anti-inflammatory vitamins or minerals, such as B-complex vitamins or magnesium

The mixture is injected directly into joints, ligaments, tendons, trigger points, or other soft tissues where degeneration, inflammation, or injury is present.

7. How Ozone Works at the Molecular Level

Improves Oxygen Utilization

Ozone can stimulate 2,3-DPG (2,3-diphosphoglycerate) in red blood cells, which helps hemoglobin release oxygen more easily to tissues. Ozone may also upregulate mitochondrial enzymes such as cytochrome c oxidase, supporting cellular respiration and ATP production. Ozone may also help convert NADH to NAD+, optimizing redox reactions involved in energy production. The result is that tissues may use oxygen more efficiently, even in hypoxic or inflamed environments.

Regenerates Connective Tissue

Ozone acts as a mild oxidative stressor, which may stimulate:

• Fibroblast activity
• Collagen production
• Extracellular matrix repair
• Growth factor release such as TGF-beta and VEGF
• Stem cell activation

These processes may support tissue regeneration and strengthening of ligaments, cartilage, and tendons.

Anti-Inflammatory and Antimicrobial Effects

Ozone can modulate the NF-kB pathway, reducing pro-inflammatory cytokines such as IL-1 and TNF-alpha. It can generate small amounts of reactive oxygen species and lipid oxidation products, which may act as signaling molecules that trigger antioxidant defenses. Ozone also has antimicrobial activity against bacteria, viruses, and fungi on contact. This may be relevant in cases where infection or microbial burden contributes to inflammation.

8. Summary of Potential Benefits in Prolozone Therapy

Mechanism	Potential Benefit
Oxygen delivery and mitochondrial activation	Pain relief and improved tissue energy metabolism
Fibroblast stimulation	Ligament, tendon, and cartilage regeneration support
Anti-inflammatory signaling	Reduced chronic pain and inflammation
Antimicrobial action	Support against low-grade infection or microbial contribution

9. Conditions Prolozone Therapy May Treat

Prolozone therapy is used by some integrative and regenerative medicine practitioners for several orthopedic and musculoskeletal conditions.

Treating Tendonitis

Tendonitis involves irritation, inflammation, or degeneration of a tendon. Because oxygen is important for tissue repair, Prolozone therapy is sometimes used to support healing in chronic tendon problems.

A study of Prolozone therapy for tendonitis reported promising results. Forty patients with chronic tendonitis were treated with either Prolozone injections or placebo. After eight weeks, those who received Prolozone injections reported significantly less pain and improved function compared with the placebo group. The researchers concluded that Prolozone therapy may be an effective treatment option for chronic tendonitis.

Another study, published in The American Journal of Sports Medicine, examined the use of Prolozone therapy for Achilles tendon rupture and found that it appeared to reduce pain and improve function.

Treating Arthritis

Arthritis, especially osteoarthritis, is one of the most common conditions for which ozone-based joint injections are discussed. Osteoarthritis is a degenerative condition involving cartilage wear, inflammation, pain, and reduced joint function.

A study conducted at the University of California, San Francisco reportedly involved 30 patients with osteoarthritis who were treated with Prolozone therapy. After eight weeks of treatment, patients had an average pain reduction of 50 percent and functional improvement of 40 percent. These findings suggest that Prolozone therapy may be a useful option to consider for some arthritis patients, particularly because ozone injections are intended to trigger tissue repair and arthritis involves degenerative tissue change.

Treating Trigger Points

Trigger points are localized, sensitive, and painful areas within muscle or fascia. They can contribute to chronic pain, stiffness, and restricted range of motion. Trigger points are often treated with Prolozone therapy because the injections may help reduce inflammation and pain while improving tissue oxygenation, circulation, cell activity, nutrient flow, and local function.

One study recruited 30 participants with at least one myofascial trigger point in the upper back or neck region. Fifteen participants were assigned to the Prolozone group and fifteen to the control group. The Prolozone group received 3–5 injections per session containing ozone, saline, and lidocaine. The control group received saline injections without ozone or lidocaine. Results showed a significant decrease in pain scores in the Prolozone group compared with the control group immediately after treatment.

Treating Bursitis

Bursitis is inflammation of a bursa, a small fluid-filled sac that helps reduce friction around joints. Bursitis can cause pain, swelling, tenderness, and restricted movement. Prolozone therapy may be used for bursitis because ozone injections may stimulate growth factors and fibroblasts within and around the joint, potentially increasing the rate of healing.

A study of Prolozone therapy for bursitis included 30 patients diagnosed with bursitis. All participants received Prolozone therapy and were monitored over six weeks. The study reported significant reductions in pain and inflammation after treatment.

How Prolozone Can Support Joint, Cartilage, and Disc Healing

Prolozone is based on the concept that chronic pain and tissue degeneration often occur in areas with reduced oxygen utilization. Ligaments, cartilage, intervertebral discs, and joint tissues naturally have lower oxygen availability than many surrounding tissues. Aging, injury, inflammation, and decreased circulation may further reduce oxygen utilization and impair healing.

According to the regenerative model described by Dr. Frank Shallenberger, improving oxygen utilization may help damaged tissues resume normal healing mechanisms. By supporting cellular energy production and growth-factor activity, tissues may be better able to repair chronic degeneration.

Potential Regenerative Effects:

• Supports oxygen utilization within damaged tissues
• Can stimulate fibroblast activity and collagen production
• Can support growth-factor signaling involved in tissue repair
• Can improve cellular energy production through effects on oxygen metabolism
• Can assist regeneration of ligaments, tendons, and cartilage
• Can help interrupt the cycle of chronic pain and degeneration

Knee Cartilage and Osteoarthritis

Osteoarthritic knees are one of the most common applications of Prolozone therapy. Clinical observations have reported improved function, reduced pain, and, in some cases, imaging findings suggesting increased cartilage thickness and improved joint space after treatment.

Hip, Shoulder, and Ankle Joints

Prolozone has also been used for degenerative and arthritic hips, shoulders, and ankles. These joints may benefit from improved oxygen utilization, connective tissue repair, and reduction of chronic inflammation.

Degenerated and Herniated Discs

Degenerated discs and chronic spinal pain are among the conditions discussed in the literature. Published studies have reported favorable outcomes for low back pain, sciatica, and disc-related conditions treated with ozone-based therapies.

Conditions Reported as Responsive to Prolozone

Reported responsive conditions include:

• Chronic neck pain
• Chronic back pain
• Degenerative knees, hips, and ankles
• Degenerated discs
• Rotator cuff injuries
• Plantar fasciitis
• Sciatica
• TMJ disorders
• Sports injuries
• Other chronic musculoskeletal pain syndromes

10. Who May Benefit from Prolozone Therapy?

Prolozone therapy may be considered for patients with:

• Osteoarthritis, particularly of the knee, shoulder, hip, or spine
• Joint instability or ligament laxity
• Chronic musculoskeletal pain
• Tendonitis
• Bursitis
• Trigger points or myofascial pain
• Failed conventional treatments such as NSAIDs, corticosteroids, or physical therapy
• Interest in alternatives to surgery or steroid injections

It is especially considered by individuals looking for non-surgical, minimally invasive options with shorter recovery times.

Relative Contraindications

Relative contraindications may include uncontrolled hyperthyroidism, thrombocytopenia, severe cardiovascular instability, seizure disorders, and pregnancy. Patients should review their full medical history with a qualified healthcare provider before treatment.

11. Medical Literature and Evidence Base

While Prolozone therapy is still considered outside the mainstream Western Medicine/Pharmaceutical model, a growing body of literature has evaluated ozone-based injection therapies. Current research is encouraging and remains limited by sample size, protocol variation, and the need for larger randomized controlled trials.

Clinical Studies

• Re et al. (2015): A randomized controlled trial comparing ozone injections to hyaluronic acid in patients with knee osteoarthritis found similar efficacy in reducing pain and improving function.
• Bubalo et al. (2021): Reported improvement in joint pain and function in patients with knee osteoarthritis after a series of intra-articular ozone injections.
• Shallenberger (2004): An observational study reported significant pain relief and functional improvement in patients undergoing Prolozone therapy for various joint and back problems.

Systematic Reviews

• A 2019 systematic review in Pain Physician concluded that ozone therapy can be a safe and effective treatment for degenerative joint diseases, while emphasizing the need for larger, high-quality randomized trials.
• A 2020 meta-analysis found that ozone therapy provided significant pain relief compared with placebo and some traditional treatments, especially for knee osteoarthritis.

12. Potential Benefits

• Pain reduction without opioids or steroids
• Improved mobility and function
• Almost no risk of systemic side effects
• Non-surgical and minimally invasive treatment option
• Short recovery time
• Can be used adjunctively with physical therapy and other modalities

13. Risks and Possible Side Effects

Prolozone therapy is generally considered safe when administered properly by trained clinicians, but potential post-injection symptoms include:

• Mild discomfort at the injection site
• Temporary increase in pain after injection
• Bruising at the injection site
• Infection (rare with sterile technique and use of ozone)
• Very rare allergic reaction to anesthetic or additives

Proper training in ozone handling and joint injection techniques is essential to minimize complications.

14. What to Expect During Treatment

The injection process is similar to a cortisone injection. The injection site is marked, cleansed, sprayed with an anesthetic, and injected with a mixture such as procaine, xylocaine, lidocaine, or a homeopathic numbing agent, methylcobalamin (B12), and other natural substances. The ozone gas is then administered. The procedure itself typically takes only a few minutes.

During Prolozone injections and briefly after the injection, patients may feel transient pressure or soreness. Rare bruising at the injection site may occur.

15. Post-Injection Guidelines

Time Period	Guideline
First 24 hours	Rest the joint and avoid heavy lifting or high-impact movements.
48–72 hours	Light activity such as walking or gentle range-of-motion exercises may be appropriate unless pain or swelling increases.
After 72 hours	Gradually return to normal activities. Ease back into exercise and avoid pushing the joint too hard.

16. Typical Injection Frequency for Knee Osteoarthritis

Prolozone injections have demonstrated good success in relieving pain for many patients. Some patients may feel relief immediately, potentially experiencing less pain, less inflammation, increased mobility, and improved quality of life. Others may benefit only after several injections.

Initial Phase

• One injection every 1–2 weeks
• Usually 2–6 sessions are recommended during this phase

Maintenance Phase, If Needed

• Injections may be spaced every 4–6 weeks
• Some patients may receive maintenance treatment only a few times per year depending on symptom recurrence or persistence

Treatment Adjustment

Improvement is often noticed after the first 1–3 treatments, but some patients may need more. Response can vary for many reasons, including prior state of health, degree of inflammation, severity of arthritis, and duration of symptoms. If there is no significant improvement after 3–4 sessions, the provider may reassess the diagnosis or adjust the treatment protocol.

Treatment Note: The exact protocol can differ by provider, condition being treated, and individual patient response.

17. Conclusion

Prolozone therapy offers a promising, low-risk regenerative medicine option for individuals suffering from chronic joint pain, particularly osteoarthritis and other orthopedic conditions involving tendons, bursae, ligaments, and myofascial trigger points. Like other regenerative medicine therapies, Prolozone is considered an alternative, non-surgical treatment. It is not generally covered by commercial health insurance.

While early clinical data and patient reports are encouraging, more research is necessary to fully document its efficacy and long-term outcomes. Patients interested in Prolozone therapy should consult qualified integrative or regenerative medicine practitioners who are trained and specialize in this technique.

18. References

1. Re, L. et al. (2015). Comparison between intra-articular ozone and hyaluronic acid in osteoarthritis of the knee. International Journal of Ozone Therapy.
2. Bubalo, G. R. et al. (2021). Effectiveness of intra-articular ozone injections in knee osteoarthritis: A clinical study. Journal of Clinical and Diagnostic Research.
3. Shallenberger, F. (2004). Prolozone: Regenerating joints and relieving pain with ozone. Journal of Prolotherapy.
4. Pain Physician. (2019). Systematic review of ozone therapy for degenerative joint diseases.
5. Meta-analysis. (2020). Ozone therapy for pain relief in osteoarthritis and related degenerative conditions.

Original Prolozone Publication

Read Dr. Frank Shallenberger's Original Prolozone Publication