
After decades of high-flying moves, hard landings, and championship-level performance, WWE legend Rey Mysterio reached a point many athletes fear: his body was no longer bouncing back the way it used to. Chronic pain in his knees, shoulder, wrists, and ankles was affecting not only his career, but his day-to-day life.
Instead of accepting decline as “normal,” Rey made a different choice—he turned to advanced regenerative medicine. On July 17, 2024, he publicly shared that he had undergone an intensive stem cell therapy protocol at RejuvStem Cancún in México, designed specifically to help him repair, recover, and move pain-free again.
This is the inside story of his Muse stem cell therapy journey at RejuvStem—and what his experience could mean for you.
“On July 17th … I had the opportunity once again to enhance my body’s well-being by repairing it with a good dosage of stem-cell therapy with my friends @rejuvstem in the port of Cancún“[7]
The Toll of a Legendary Career on Rey’s Joints
Rey Mysterio is known for defying gravity, but the human body still has limits. Over more than three decades:
- Repeated dives and landings stressed his knees
- High-impact bumps and throws overworked his shoulder
- Grappling, springboard moves, and wrist-heavy offense strained his wrists and ankles
Like many elite athletes, Rey tried the usual solutions:
- Physical therapy
- Anti-inflammatory medications
- Rest periods
- Injections and traditional pain management
These approaches helped temporarily, but they didn’t fully restore strength or eliminate chronic pain in his most heavily used joints. Over time, wear-and-tear, cartilage loss, ligament micro-tears, and chronic inflammation became harder to ignore.
That’s when Rey decided it was time to do something different—something that could help his body repair, not just manage symptoms.
Why Rey Mysterio Chose Stem Cell Therapy in Cancún, Mexico
Rey began exploring cutting-edge regenerative therapies that are more accessible in Mexico than in many other countries. At RejuvStem Cancún, he found:
- A medical team experienced in treating high-level athletes and performers
- Access to Muse (Multilineage-Differentiating Stress-Enduring) cells, an advanced type of stem cell used in regenerative medicine research
- A multi-joint protocol that could address his knees, shoulder, and wrists in a coordinated way—not just one “problem joint” at a time
For an athlete whose entire career depends on mobility, impact resistance, and fluid movement, the combination of science, experience, and personalization made RejuvStem the clear choice.
Inside Rey Mysterio’s Multi-Joint Stem Cell Protocol at RejuvStem Cancún
Rey’s treatment at RejuvStem was designed to support both systemic healing and targeted joint repair. His personalized protocol included:
1. Systemic Stem Cell IV Infusion
Rey received an IV infusion of high-potency stem cells, allowing them to circulate through his bloodstream and:
- Reach multiple areas of inflammation
- Support overall tissue repair
- Promote a healthier internal environment for healing
This whole-body approach complements localized joint treatments by giving his system a general regenerative boost.
2. Targeted Stem Cell Joint Injections
In addition to the IV infusion, Rey underwent precise joint injections into:
- Both knees
- One shoulder
- Both wrists
By placing a concentrated dose of regenerative cells exactly where damage and inflammation were the worst, his medical team could directly support tissue repair, inflammation reduction, and joint stability at each site.
3. Shockwave Therapy & Hyperbaric Oxygen Support
To supercharge his results, Rey’s protocol also included:
- Shockwave therapy to stimulate blood flow and cellular repair in his joints
- Hyperbaric oxygen therapy (HBOT) to saturate his tissues with oxygen at increased pressure, supporting healing at the cellular level
These complementary modalities helped create a more favorable environment for the stem cells to survive, integrate, and repair.
Just 32 days after treatment[8], Rey shared that he woke up for the first time in years completely pain-free, with no tightness around his ankles and his shoulder pain gone.
“First day waking up completely pain free. No soreness or tightness around the ankles and the pain on my shoulder vanished as well. My body feels incredible.”
For someone who lives in constant motion, this wasn’t just a small improvement—it was a game-changing reset.
Why Muse Stem Cells Are a Game-Changer for High-Impact Athletes
At the center of Rey Mysterio’s transformation is the use of Muse (Multilineage-Differentiating Stress-Enduring) cells. These unique stem cells, first described by Dr. Mari Dezawa and colleagues, have properties that make them especially promising for sports injuries and degenerative joint problems:
- They are pluripotent-like—capable of becoming many different tissue types (cartilage, tendon, bone, neural tissues) without the same tumor risk associated with embryonic stem cells.
- They can sense damage signals and home directly to injured tissues, concentrating their effects where they are needed most.
- They are immune-privileged, meaning they can often be used from donor to recipient with minimal rejection risk.
- They are built to survive in harsh, inflamed environments, like worn-out joints under constant stress.
For a body that’s been through as much as Rey’s, Muse cells offered something traditional therapies could not: a way to actively support regeneration, not just mask pain.By reducing inflammation, supporting tissue repair, and adapting to each joint’s needs, Muse cells helped Rey’s body start moving more like it did before years of accumulated damage.
Why Elite Athletes Trust RejuvStem Cancún for Stem Cell Therapy
Rey’s decision to work with RejuvStem Cancún was not random. Several key elements set this clinic apart for athletes, performers, and anyone with serious joint damage:
- Authentic, high-quality cells
RejuvStem uses licensed Muse cell protocols and processes cells in its own GMP-certified laboratory, maintaining tight control over quality and potency. - Precision medicine delivery
The medical team specializes in both targeted joint injections and systemic IV infusions, allowing each treatment plan to be customized for multi-joint or full-body issues. - Comprehensive, concierge-style care
From coordinating your trip to Cancún and helping with accommodations to pairing stem cell therapy with shockwave, hyperbaric, and rehab protocols, RejuvStem is built to support you from consultation through long-term follow-up.
Rey’s outcome—waking up pain-free and returning to daily life with renewed ease—is an example of what can happen when advanced cells, expert technique, and whole-patient support come together.
What Rey’s Experience Means for You
You don’t have to be a WWE legend to benefit from regenerative medicine. Rey’s story is a powerful example of what’s possible, but the underlying issues he faced are very common:
You may be a candidate for Muse stem cell therapy at RejuvStem Cancún if you have:
- Ongoing knee, shoulder, ankle, wrist, or hip pain
- Degenerative changes like cartilage wear, tendon or ligament damage, or osteoarthritis
- Pain that hasn’t improved with rest, physical therapy, or injections
- A desire to avoid or delay surgery by using a less invasive, regenerative approach
- A commitment to your recovery and willingness to follow a guided rehab plan
Rey’s experience shows that there are options beyond “managing” pain. With the right strategy, you can move toward actually healing, not just coping.
Your RejuvStem Cancún Treatment Journey: Step by Step
If Rey’s story resonates with you, here’s what the process typically looks like at RejuvStem:
1. Comprehensive Evaluation
Your journey begins with a detailed review of your medical history, imaging, and current symptoms. The RejuvStem team looks at all affected joints, not just the most painful one, to design a complete plan.
2. Personalized Treatment Plan
Based on your evaluation, the medical team builds a custom protocol that may include:
- Muse cell IV infusion
- Targeted joint injections
- Shockwave therapy
- Hyperbaric oxygen therapy
- Rehab and movement guidance
3. Travel & Treatment in Cancún
You’ll travel to Cancún, Mexico, where RejuvStem helps coordinate your stay. Many patients appreciate combining treatment with the calming environment of a world-class destination city while they recover.
4. Follow-Up & Long-Term Monitoring
After treatment, RejuvStem’s team remains in contact for follow-up consultations, helping you track your progress and optimize long-term results with lifestyle and rehab support.
Real Patient Outcomes Beyond the Ring
Rey’s recovery is one example of what’s possible—but he’s not alone. At RejuvStem Cancún, patients from around the world report improvements in pain, mobility, and quality of life, such as:
“I’d been dealing with chronic knee pain for years. After Muse cell treatment at RejuvStem Cancún, I can walk pain-free again—and my follow-up imaging showed improved cartilage.”
– John D., 67 (USA)
“After an ACL tear, I thought my days playing sports were over. Thanks to targeted Muse cell injections and guided rehab at RejuvStem, I’m back and stronger than before. Traveling to Cancún was the best decision I made for my health.”
– Carlos M., 30s (Mexico City)
Again, individual results vary, but these stories echo the same theme: less pain, better function, more life.
Frequently Asked Questions About Rey Mysterio’s Treatment
What stem cell clinic did Rey Mysterio visit in Mexico?
Rey Mysterio chose RejuvStem in Cancún, Mexico, a regenerative medicine clinic that uses advanced Muse cells and other cellular therapies to help patients with joint damage, sports injuries, and degenerative conditions.
What type of stem cell therapy did Rey receive
Rey’s personalized protocol included Muse stem cells, delivered both through IV infusion and targeted joint injections. His plan also incorporated supportive therapies such as shockwave and hyperbaric oxygen to enhance the regenerative effects.
Which areas of Rey’s body were treated?
Rey focused on multiple joints that had accumulated damage over years of wrestling, including both knees, one shoulder, and both wrists, helping him regain smoother, more comfortable movement.
How soon did Rey notice results after his stem cell therapy?
According to Rey’s own update, he noticed a dramatic change within about a month—sharing that he woke up completely pain-free, without the usual soreness or tightness that had become part of his daily routine. Rejuvstem
Is similar treatment available for non-athletes?
Yes. You don’t have to be a pro wrestler or elite athlete to receive Muse cell therapy at RejuvStem. Many patients are everyday people who want to walk without pain, stay active, and avoid invasive surgery.
Why do so many athletes go to Mexico for stem cell therapy?
Mexico allows access to advanced regenerative protocols under national regulatory frameworks such as COFEPRIS, enabling clinics like RejuvStem to offer cutting-edge options that may not be available in other countries
Ready to Reclaim Your Body Like Rey Mysterio?
If you’re tired of being limited by pain, stiffness, or old injuries, Rey Mysterio’s story is a powerful reminder that you may have more options than you think.
Take the next step:
- Call: +1 (302) 551 3530
- Email: info@rejuvstem.com
- Visit: RejuvStem Cancún’s Stem Cell Therapy page to request a consultation
- Schedule: A personalized evaluation to see whether stem cell therapy is right for you.
Don’t let chronic pain dictate your future. Just like Rey, you can explore regenerative medicine at RejuvStem Cancún and give your body the chance to heal, move, and perform at a higher level again.
We had such a wonderful experience. The medical professionals are top notch. I look forward to going back yearly. I...

Ettore Ewen
Where do I start… I had the best experience from beginning to end . I ask for a 2 week...

Michelle’s Crafts
I wish I could give more than 5 stars. From touch down everything was first class and superb, thoughtful, kind...

Victoria Arlen
Going to Rejuv stem was one of the most family oriented, wholesome, experience I’ve had going to a treatment center....

Sabby Piscitelli
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Joanna Dee (Jojo)
My time at RejuvStem wasn’t just a medical treatment. It was a vacation that I didn’t need a vacation from!...


