Therapeutic Plasma Exchange (TPE): What It Is, How It Works, and the Science of Biological Age Reversal

What if we could cleanse the blood of toxins that accelerate aging? Therapeutic plasma exchange (TPE), also known as plasmapheresis, is a medical procedure that has been used for decades to treat autoimmune and neurological diseases. But recent studies position it as one of the most promising tools in longevity medicine.

In 2025, a clinical trial from the Buck Institute for Research on Aging demonstrated that therapeutic plasma exchange combined with immunoglobulin reduced biological age by up to 2.6 years in adults over 50 (Fuentealba et al., Aging Cell 2025). This isn't magic—it's biology with precision.

In this article, we explain what therapeutic plasma exchange is, how it works step by step, what substances it removes (microplastics, inflammatory proteins, environmental toxins), what the latest science says, what it's used for in both conventional medicine and longevity, what a real session looks like, and how we integrate it at Progevita into personalized optimization programs.

What Is Therapeutic Plasma Exchange (TPE)?

Therapeutic plasma exchange (TPE) is a medical procedure in which blood is removed from the patient, the plasma (the liquid portion of blood) is separated from the cellular components, the "old" plasma containing toxins and inflammatory substances is discarded, and replaced with a solution of albumin (a safe protein) or donor plasma. Red blood cells, white blood cells, and platelets are returned to the body.

Terminology: TPE = Plasmapheresis = Plasma Exchange

These terms refer to the same procedure. "Plasmapheresis" is the technical term most used in medicine; "therapeutic plasma exchange (TPE)" is more descriptive. It's also called plasma depuration or simply plasma exchange. It should not be confused with diagnostic plasmapheresis (plasma extraction for analysis) or plasma donation.

How It Works: Step by Step

1. Blood extraction: Two intravenous lines are placed (typically one in each arm). One line extracts blood; the other returns it, allowing continuous flow.
2. Centrifugation: Blood passes through a machine that centrifuges it, separating it into three components: plasma (the liquid, yellowish part containing proteins, antibodies, toxins), red blood cells (carry oxygen), and platelets and white blood cells (clotting and immunity).
3. Plasma removal: The "old" plasma is discarded. This is where the substances we want to eliminate are located: inflammatory proteins, microplastics, pesticides, heavy metals, glycated proteins, pathological autoantibodies.
4. Replacement with albumin: The removed plasma is replaced with a solution of human albumin (a purified, safe, and well-tolerated protein) or donor plasma. Albumin maintains the body's fluid and protein balance.
5. Return of blood components: Red blood cells, platelets, and white blood cells are returned to the patient through the entry line, now in a clean plasma environment.

Typical duration: between 1 hour and 2 hours per session, depending on the patient's weight, height, and hematocrit.

What Does Therapeutic Plasma Exchange Remove?

TPE acts as an "advanced filter" for the blood, removing substances that accumulate with age, environmental exposure, and chronic inflammation. These substances are not always efficiently processed by the liver and kidneys, especially when these organs are overloaded.

Microplastics and Nanoplastics

A study published in Environment International (2024) detected microplastics in the blood of 77% of people analyzed. These particles come from food packaging, synthetic clothing, tires, cosmetics, and the degradation of plastics in the environment.

A 2025 study in Brain Medicine (PMC12162106) demonstrated, for the first time, that therapeutic apheresis can remove microplastic-like particles from human blood. In 21 patients with post-infectious chronic fatigue syndrome, 14 different substances were detected in the extracted plasma, including polyamide 6 (nylon 6) and polyurethane, which were not present in the filters before the procedure.

Inflammatory and Senescent Proteins

With age, pro-inflammatory cytokines (IL-6, TNF-alpha), glycated proteins, and factors secreted by senescent cells (the so-called SASP, Senescence-Associated Secretory Phenotype) accumulate. These molecules promote chronic low-grade inflammation (inflammaging), which accelerates aging and increases the risk of chronic diseases.

A human study published in GeroScience (2022, PMID: 35999337) by Mehdipour and colleagues from the Conboy Lab (UC Berkeley) showed that plasma exchange reduced levels of pro-inflammatory proteins and restored a younger proteomic profile.

Environmental Toxins

• Pesticides (organophosphates, glyphosate) from food
• Heavy metals (lead, mercury, cadmium) from air pollution, water, and food
• Persistent organic pollutants (PCBs, dioxins)
• Combustion products (PM2.5 particles, aromatic hydrocarbons)

Altered Macromolecules

• Advanced glycation end-products (AGEs): formed when sugar binds to proteins, accelerating vascular and neurological aging.
• Autoantibodies: in autoimmune diseases, the immune system produces antibodies against its own tissues.

What Does the Science Say: Key Studies

Therapeutic plasma exchange is not a passing fad. It's a procedure with decades of clinical use and a solid scientific foundation in longevity that has accelerated in the last 5 years.

UC Berkeley — Plasma Dilution Rejuvenates Tissues (2020)

Conti et al. (Aging, 2020) demonstrated in mice that simple plasma dilution (without adding young blood) rejuvenated the brain, liver, and muscle. This study changed the paradigm: young blood is not necessary; cleaning the old is enough.

The effect is due to the attenuation of circulating inhibitors that accumulate with age and block the signaling pathways that regulate tissue regeneration (JAK-STAT, TGF-beta, MAPK, NF-κB).

Plasma Dilution Reduces Biological Age in Humans (2022)

Mehdipour et al., GeroScience (2022) — PMID: 35999337

First longitudinal study in humans. Three patients (age: 46-77 years) received multiple rounds of TPE. Results:

• Reduction of oxidative DNA damage (8-OHdG marker)
• Decrease in p16 (cellular senescence marker)
• Restoration of lymphocyte/myeloid balance: increase in T cells, B cells, NK cells; decrease in pro-inflammatory macrophages (CD68)
• Rejuvenated proteome: 72 proteins that differentiate young from old returned to juvenile levels after TPE

The study demonstrated that TPE promotes a global shift to a younger proteome, restoring pro-regenerative, anti-cancer, and apoptotic regulators. The mechanism recalibrates JAK-STAT, MAPK, TGF-beta, NF-κB, and Toll-like receptor (TLR) signaling pathways, with TLR4 as a nodal point of this molecular rejuvenation.

Controlled Clinical Trial — Rejuvenation of 2.6 Years (2025)

Fuentealba et al., Aging Cell (2025) — DOI: 10.1111/acel.70103

This is the first randomized, placebo-controlled clinical trial in human longevity. 42 participants over 50 years old (average age ~65) in a single-blind trial with 3 groups:

1. TPE + intravenous immunoglobulin (IVIG), 2 weekly sessions for 3 months
2. Monthly TPE for 6 months
3. Placebo (simulated procedure)

The TPE + IVIG group reduced biological age by an average of 2.61 years (measured with multi-omic epigenetic clocks). 15 epigenetic clocks showed significant rejuvenation (FDR < 0.05). Only 3 TPE sessions were sufficient to induce improvements. The most pronounced effects were in people with poorer baseline health: higher baseline inflammation, elevated glucose, elevated transaminases.

Apheresis and Microplastics (2025)

Published in Brain Medicine (2025, PMC: 12162106). First evidence that therapeutic apheresis can remove microplastic-like particles from human blood. In 21 patients, 14 different substances with polymer similarity were detected in the extracted plasma, including polyamide 6 (67.5% match) and polyurethane (35.3%). These particles were not present in the filters before the procedure.

Other Relevant Studies

• Kiprov et al., Translational Medicine of Aging (2021): TPE attenuates age-elevated blood factors.
• Li et al. (2024): Double-filtration plasmapheresis study estimated a biological age reduction of 4.47 years in men and 8.36 years in women based on a multi-biomarker approach (PMC12218284).

What Is Therapeutic Plasma Exchange Used For?

TPE has two worlds of application: conventional medicine (established indications for decades) and longevity medicine (the new paradigm based on recent evidence).

In Conventional Medicine (Established Indications)

TPE is approved and standard of care for:

• Autoimmune diseases: myasthenia gravis, Guillain-Barré syndrome, systemic lupus erythematosus, multiple sclerosis
• Kidney and liver diseases: detoxification when liver/kidneys are saturated
• Hyperviscosity syndrome: in multiple myeloma or Waldenström macroglobulinemia
• Post-transplant: antibody-mediated rejection
• Long COVID: TPE has shown relief of symptoms such as "brain fog," fatigue, and cytokine storm (cited in Mehdipour et al. 2022)

In Longevity Medicine (The New Paradigm)

The application in longevity does not seek to treat a specific disease, but to optimize systemic function and slow biological aging.

1. Reduce inflammaging (chronic low-grade inflammation): eliminate pro-inflammatory cytokines, SASP factors, glycated proteins.
2. Clean accumulated microplastics and environmental toxins: especially relevant in urban areas with high pollution.
3. Rejuvenate the immune system: restore lymphocyte/myeloid balance, reduce immunosenescence.
4. Optimize cellular and regenerative function: by eliminating circulating inhibitors of JAK-STAT, MAPK, TGF-beta pathways, the body regains repair capacity.
5. "Phase zero" before other regenerative treatments: TPE "cleans the terrain" so that therapies like stem cells, exosomes, NAD+ IV, or hyperbaric chamber are more effective.
6. Improve mental clarity, energy, and quality of life: many patients report effects in the first 24-48 hours — objective reduction of inflammation and toxicity.

What a Therapeutic Plasma Exchange Session Is Like

Before the session: preparation

• Pre-session blood test: complete blood count, kidney function, liver function, electrolytes, total proteins, albumin. This confirms you're a candidate and allows protocol adjustment.
• Medical evaluation: the medical team reviews your history, current medication, objectives (clinical vs. longevity).
• Informed consent: benefits, risks, and procedure are explained.

During the session

1. Placement of intravenous lines: typically two lines are used (one in each arm). If not possible, a double-lumen catheter is used.
2. Circuit initiation: blood flows continuously. Through one line it exits, passes through the machine, is centrifuged, plasma is separated, replaced with albumin, and returns through the other line.
3. Sensations: most patients feel nothing or only a slight feeling of cold (because the returned blood is at a slightly lower temperature than body temperature). You can read, watch a series, work on your laptop, or simply relax.
4. Duration: between 1h 10min and 2 hours, depending on your weight and the volume of plasma to be processed.
5. Completion: lines are removed, pressure is applied to the puncture points (as in a normal blood draw), and done.

After the session

• Immediate effects (24-48h): many patients report more energy, mental clarity, better sleep quality. The reduction of inflammation and toxicity is objective.
• Medium-term effects (weeks): progressive improvement in general well-being, better stress tolerance, greater physical endurance.
• Long-term effects (months): reduction of inflammation biomarkers (hsCRP, suPAR), improvement in biological age (if measured with epigenetic clocks).

Typical Protocol

• For longevity: cycles of 3-6 sessions spaced 1-4 weeks depending on objective and individual response.
• For autoimmune diseases: more intensive protocols (daily or 2-3 times per week) depending on pathology.

Possible Side Effects

Most common (mild): bruising at the puncture site, dizziness or temporary fatigue (resolves in hours), feeling of cold during the procedure.

Rare: infection at the puncture site (low risk with proper sterile technique), allergic reaction to albumin (extremely rare).

Absolute contraindications: severe hemodynamic instability, known allergy to human albumin, active uncontrolled bleeding.

Therapeutic plasma exchange is a safe procedure when performed by trained professionals with proper equipment.

Therapeutic Plasma Exchange at Progevita

At Progevita, therapeutic plasma exchange is not an isolated treatment. We integrate it within personalized longevity programs based on advanced diagnostics and 12-month follow-up.

Our approach: first clean, then regenerate

1. Initial diagnosis: before any treatment, we measure more than 50 biomarkers: inflammation (hsCRP, suPAR, IL-6), metabolism (glucose, insulin, HbA1c), liver and kidney function, hormonal profile, body composition, VO2max, epigenetic age.
2. Cleaning phase (plasma exchange): we eliminate toxins, microplastics, inflammatory proteins. This "resets" the systemic environment.
3. Regeneration phase: we combine with complementary treatments like orthomolecular IV therapy (NAD+ Boost, Detox, high-dose vitamin C), ozone therapy (major autohemotherapy for immune modulation), hyperbaric chamber, and bioidentical hormone therapy (if applicable).
4. Follow-up and optimization: at 3, 6, and 12 months we review biomarkers and adjust the protocol.

Specialized Medical Supervision

Plasma exchange at Progevita is performed by physicians specialized in longevity medicine with training in therapeutic apheresis. We collaborate with Dr. Vivian Borroto, an international reference in regenerative therapies.

Is Therapeutic Plasma Exchange Right for You?

Ideal candidates: people aged 45-75 with elevated chronic inflammation (hsCRP > 1.5 mg/L, suPAR > 3 ng/mL), significant environmental exposure (urban living, pollution, diet high in processed foods), symptoms of "brain fog," chronic fatigue, or slow recovery, and pre-regenerative treatment preparation.

Not a priority if: low baseline inflammation and optimal metabolic health, age < 40 years without risk factors, or preference for less invasive interventions (diet, exercise, supplementation).

If you have doubts about whether plasma exchange can benefit you, consult with our medical team. We evaluate your case personally and propose the most appropriate plan.

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Frequently Asked Questions

Is therapeutic plasma exchange the same as plasmapheresis?

Yes. Therapeutic plasma exchange, plasmapheresis, and TPE are terms for the same procedure. "Plasmapheresis" is the technical term most used in medicine; "therapeutic plasma exchange" or "TPE" is more descriptive and accessible.

Is plasma exchange painful?

No. It's similar to a blood draw with two intravenous lines. Some people feel a slight pressure when needles are placed, but the procedure itself is painless. Most patients read, work, or rest during the session.

How many sessions are needed to see results?

For longevity and optimization: cycles of 3-6 sessions spaced 1-4 weeks. The Fuentealba et al. (2025) study showed that 3 sessions are sufficient to induce significant changes in age biomarkers. For autoimmune diseases: more intensive protocols depending on pathology.

Does it remove microplastics from the blood?

Recent studies (Brain Medicine 2025, PMC12162106) suggest that therapeutic apheresis can remove microplastic-like particles from human blood. In 21 patients, polymers such as polyamide 6 and polyurethane were detected in the extracted plasma. Research in this field is emerging and more quantitative studies are needed, but preliminary results are promising.

Does plasma exchange have side effects?

Generally mild: bruising at the puncture site, dizziness or temporary fatigue (resolves in hours), feeling of cold during the procedure. Serious side effects are rare when the procedure is performed with proper sterile technique and medical supervision. It's a safe procedure with decades of clinical use in hospitals.

How much does therapeutic plasma exchange cost?

The price varies depending on the protocol, number of sessions, and whether it's combined with other treatments. In longevity clinics in Spain, the range is 1,500-4,500 EUR per session. At Progevita, by integrating it within complete programs (diagnosis + treatments + follow-up), we optimize the cost per session. Consult with our team for a personalized assessment.

How long does the effect of plasma exchange last?

Benefits can last several months, but duration depends on your lifestyle. Habits that reduce duration: tobacco, excessive alcohol, sedentary lifestyle, pro-inflammatory diet, high pollution exposure. Habits that prolong effect: Mediterranean diet, regular exercise (strength + cardio), quality sleep, stress management. Recommended maintenance protocol: 1 session per year for continuous optimization (according to individual biomarkers).

References

1. Fuentealba et al. (2025). "Multi-Omics Analysis Reveals Biomarkers That Contribute to Biological Age Rejuvenation in Response to TPE." Aging Cell. DOI: 10.1111/acel.70103
2. Mehdipour et al. (2022). "Old plasma dilution reduces human biological age: a clinical study." GeroScience. PMID: 35999337
3. Conti et al. (2020). "Diluting blood plasma rejuvenates tissue, reverses aging in mice." Aging. UC Berkeley.
4. "Therapeutic apheresis: A promising method to remove microplastics?" (2025). Brain Medicine. PMC: 12162106
5. Kiprov et al. (2021). "Attenuation of age-elevated blood factors by repositioning plasmapheresis." Translational Medicine of Aging.
6. Li et al. (2024). "Human clinical trial of plasmapheresis effects on biomarkers of aging." PMC: 12218284
7. "Microplastics in human blood." (2024). Environment International.

This article is for informational purposes and does not replace individual medical consultation.

Want to know if plasma exchange is right for you? Talk to our medical team and design a personalized protocol at Balneario de Cofrentes, Valencia.