Peptides for Longevity: Do They Slow Aging? (2026)

How Peptides Are Studied for Longevity

Longevity peptides target different hallmarks of aging. Epitalon activates telomerase, the enzyme that rebuilds telomere caps on chromosomes — research in animal models shows lifespan extension. MOTS-C is a mitochondrial-derived peptide that improves cellular energy metabolism and mimics some benefits of exercise.

SS-31 (Elamipretide) targets the inner mitochondrial membrane directly, improving electron transport efficiency and reducing oxidative damage. It's in clinical trials for heart failure and mitochondrial diseases. FOXO4-DRI is a senolytic peptide that selectively triggers death in senescent cells while sparing healthy ones.

NAD+ supplementation (via IV or injection) addresses the age-related decline in this critical coenzyme, supporting sirtuin activity, DNA repair, and cellular energy production.

Peptides Studied for Longevity

Epitalon

A telomere-targeting peptide for longevity and cellular rejuvenation.

MOTS-C

A mitochondrial peptide that mimics exercise — boosts metabolism and endurance.

AICAR

An AMPK-activating research compound (acadesine) studied as an exercise mimetic for endurance and fat metabolism; reached cardiac-surgery trials, never approved, and WADA-banned in sport.

SS-31 (Elamipretide)

A mitochondrial peptide for cellular energy, anti-aging, and organ protection.

Humanin

A neuroprotective peptide for brain health and cognitive longevity.

NAD+

A cellular energy molecule for DNA repair, metabolism, and anti-aging.

FOXO4-DRI

A senolytic peptide that selectively eliminates damaged zombie cells for anti-aging.

SLU-PP-332

A small-molecule ERR receptor agonist that acts like exercise inside your cells — driving mitochondrial biogenesis, fat oxidation, and endurance gains without any actual training.

Glutathione

The body's master antioxidant for cellular defense, immune support, detoxification, and skin health.

Bronchogen

A Khavinson bronchial tetrapeptide (Ala-Glu-Asp-Leu / AEDL) studied in rat lung models for respiratory-tissue repair; preclinical, no human data.

Testagen

A Khavinson testis tetrapeptide (Lys-Glu-Asp-Gly / KEDG) marketed for reproductive-tissue support; contains no steroid and is unrelated to testosterone, with a verified sequence but no reproductive-outcome studies.

Prostamax

A Khavinson prostate tetrapeptide (Lys-Glu-Asp-Pro / KEDP); the synthetic peptide has minimal direct evidence, with prostate clinical data belonging to the Prostatilen extract.

Cardiogen

A Khavinson cardiac tetrapeptide (Ala-Glu-Asp-Arg / AEDR) studied in review and cell-transport work for a role in cardiovascular inflammaging; preclinical and mechanistic only, no human trials.

results

Cardiogen Results: What to Realistically Expect

There is no human timeline data for Cardiogen. What community sources report, why it's mostly theoretical, and how to read it honestly.

Testagen Results: Week-by-Week Timeline

Testagen has no human trials at all — so what shapes its reported timeline? Labeled community reports and the Russian short-course convention.

Prostamax Results: Week-by-Week Timeline

Prostamax has no human efficacy trial — so what drives the reported timeline? Preclinical chromatin data and labeled community reports, week by week.

Bronchogen Results: Week-by-Week Timeline

Bronchogen has no human efficacy trials — so what drives the reported timelines? Rat COPD-model data and labeled community reports, week by week.

guides

Cardiogen Reconstitution: 20mg Mixing Chart

A 20mg Cardiogen vial plus 2mL bacteriostatic water gives 10mg/mL. Because community doses are tiny, dilution choice matters. Charts, storage, and steps.

Where to Buy Cardiogen: Price & Vendor Guide

Cardiogen sells as 20mg vials at roughly $2.50-$3.50/mg. With thin evidence, COA quality matters most. How to verify a vendor before you buy.

Where to Buy Testagen: Price & Vendor Guide

Testagen is a synthetic KEDG tetrapeptide — not testosterone, not a steroid. How to read a 447 Da COA, dodge the Testoluten mix-up, and what it costs.

SLU-PP-332 Reconstitution: Vial Mixing & Oral Cap Notes

Ion's 30 mg vial is the only injectable path. Oral caps need no mixing — but the published bioavailability question changes the math entirely.

dosing

Cardiogen Dosage: Community Protocols Explained

There is no trial-established Cardiogen dose. Community sources cluster around low-dose subcutaneous courses. The reconstitution math, explained.

Testagen Dosing: 10-20 Day Course Protocol

A synthetic testis tetrapeptide with no validated human dose — and no steroid. What research-chem sources report, plus the extract-vs-synthetic caveat.

Prostamax Dosing: 10-20 Day Course Protocol

A synthetic prostate tetrapeptide with no validated human dose. What research-chem sources report for short courses, plus the extract-vs-synthetic caveat.

Bronchogen Dosing: 10-20 Day Course Protocol

A synthetic bronchial tetrapeptide with no validated dose. What research-chem sources report for short courses, plus the extract-vs-synthetic caveat.

benefits

Cardiogen Benefits: What the Research Shows

Cardiogen is marketed for the heart, but its evidence is a handful of Russian cell studies. What the AEDR peptide research supports — and what it doesn't.

Testagen for Reproductive Support: The Evidence

Testagen is marketed for testis and reproductive support, but its one verified study isn't about reproduction at all. What the KEDG peptide research shows.

Prostamax for Prostate Health: The Extract Caveat

The prostate-health reputation behind Prostamax belongs to a tissue extract, not the synthetic KEDP peptide. What the research actually reported.

Bronchogen for Bronchial Repair: Rat COPD Data

Bronchogen's lung-repair reputation traces to rat COPD models and bronchial cell cultures — not human trials. What the research actually reported.

articles

Peptides for Long COVID: What the Trials Show

BPC-157, MOTS-c and microdosed GLP-1s are marketed for Long COVID while semaglutide and tirzepatide trials run. What's studied, what isn't.

Peptide Bioregulators: The Khavinson Family

A clear-eyed map of the Khavinson bioregulators — what each synthetic peptide has real evidence for, and what actually belongs to the tissue extracts.

Best Peptides for Mitochondrial Health

6 mitochondrial peptides ranked by trial evidence — what each targets, who uses it, and what community sources actually report.

Nura Peptide Review: 25% Off Coupon

Nura Peptide: capsule peptides, pre-mixed nasal sprays, and a Reta+Cag combo. 25% off with thepeptidecatalog. Real pricing breakdown inside.

side-effects

Testagen Side Effects: What the Evidence Shows

Despite the name, Testagen isn't testosterone — and its near-zero side-effect claim rests on almost no independent data. Here's the real picture.

Prostamax Side Effects: What the Evidence Shows

Its originators claim near-zero side effects, but independent safety data barely exists. What the research shows — and the risks it leaves out.

Bronchogen Side Effects: What the Evidence Shows

Its makers claim near-zero side effects, but independent respiratory safety data barely exists. What the rat studies show — and the risks left out.

AICAR Side Effects: What Human Trials Reported

The only human safety data comes from failed cardiac trials: uric-acid spikes, transient kidney effects, infusion-related low blood pressure.

reconstitution

Testagen Reconstitution: 20mg Vial Mixing Chart

Testagen has no validated human concentration. See how community resources describe mixing the 20mg vial, plus syringe-unit math and storage limits.

Prostamax Reconstitution: 20mg Vial Mixing Chart

Prostamax has no validated human concentration. See how community resources describe mixing the 20mg vial, plus syringe-unit math and storage limits.

Bronchogen Reconstitution: 20mg Vial Mixing Chart

Bronchogen has no validated human concentration. See how community resources describe mixing the 20mg vial, plus syringe-unit math and storage rules.

AICAR Reconstitution: 50mg Vial Dilution Chart

AICAR has no validated human concentration. How community resources document 50mg-vial dilution math, syringe units, and 28-day storage.

buying-guide

Where to Buy Prostamax: Price & Vendor Guide

Prostamax is a synthetic KEDP tetrapeptide, not the Prostatilen prostate extract. How to read a 487 Da COA and spot the mix-up before you buy.

Where to Buy Bronchogen: Price & COA Guide

Bronchogen is a synthetic AEDL tetrapeptide, not a bronchial extract. How to read a 446 Da COA, avoid the mix-up, and what a vial really costs.

Where to Buy AICAR: Price & Vendor Guide

AICAR is a WADA-banned research chemical with no proven human benefit. What COA, purity, and identity checks actually matter before you buy.

Where to Buy Glutathione: Form & Vendor Guide

Injectable, buccal, or liposomal -- the form you pick matters more than the vendor. Per-mg pricing, COA red flags, and what to avoid.

comparison

AICAR vs MOTS-C: Two Paths to AMPK

AICAR and MOTS-C flip the same AMPK switch by two different routes. Both show promise in mice, neither is proven in humans. The mechanism split.

MOTS-C vs Metformin for Longevity: Key Differences

One is a 70-year-old diabetes drug, the other a mitochondrial peptide found in 2015. How MOTS-c and metformin compare on evidence, safety, and cost.

SLU-PP-332 vs MOTS-c: Two Exercise Mimetics

Synthetic ERR pan-agonist vs mitochondria-encoded AMPK activator. Same goal, opposite philosophies, and the stack rationale that ties them.

SS-31 vs MOTS-c: Mitochondrial Peptides

SS-31 stabilizes cardiolipin, MOTS-c activates AMPK — different targets, different results. Full comparison with dosing and research.

clinical

FDA Peptide Panel: Members Sell BPC-157, TB-500

AP investigation: FDA's peptide advisory panel includes clinicians who sell BPC-157 and TB-500 — what it means for the July 23 vote.

FDA Staff: No Compounding for BPC-157, TB-500, 5 More

FDA scientists recommend against adding BPC-157, TB-500, MOTS-c and 4 more to the compounding list before the July 23 vote. What it means for buyer access.

7 Peptides Go to FDA Vote July 23: What Buyers Need

FDA's compounding panel votes on BPC-157, TB-500, KPV, MOTS-c and 3 more July 23-24. What each outcome means for access — and where to buy now.

SLU-PP-332 Clinical Research: Mouse-Only, IND Pending

Three primary papers, zero human trials, no IND filed. Where SLU-PP-332 actually sits in the pipeline — and why SLU-PP-915 may get to humans first.

stacking

SLU-PP-332 + Retatrutide Stack: Eat Less, Burn More

Triple-agonist appetite suppression + ERR pan-agonist mitochondrial output. Why community references frame it as the cleanest mechanistic pair.

bloodwork

SLU-PP-332 Bloodwork: 7 Labs Researchers Track

Lactate may be the marker that tells you if ERR pan-agonism is doing anything. Cardiac, metabolic, and liver labs published preclinical work tracked.

Price Comparisons

Compare Epitalon Prices

Find the best deals from trusted vendors

Compare SS-31 (Elamipretide) Prices

Compare MOTS-C Prices

Compare NAD+ Prices

Compare FOXO4-DRI Prices

Compare SLU-PP-332 Prices

Compare Glutathione Prices

Compare Bronchogen Prices

Compare AICAR Prices

Compare Testagen Prices

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Related Research Areas

Frequently Asked Questions

NAD+ has the strongest human clinical data, with numerous studies showing improved cellular energy, DNA repair markers, and some aging biomarkers. Epitalon has impressive animal data but limited human studies. SS-31 is in Phase 3 trials for mitochondrial diseases.

Direct lifespan data in humans doesn't exist yet — these compounds are too new. However, they target proven aging mechanisms (telomeres, mitochondria, senescence) that correlate with healthspan and longevity. Think of them as optimizing the biological systems that determine how well you age.

Unlike acute interventions, longevity peptides are often used chronically or cyclically. Common protocols include 10-day epitalon cycles 2-4 times per year, periodic NAD+ infusions, or continuous low-dose MOTS-C. The goal is long-term optimization rather than short-term fixes.

Most longevity peptides have minimal acute side effects, but long-term effects are unknown. Theoretical concerns include over-activating cellular repair systems or interfering with natural aging processes that may serve protective functions. Conservative cycling approaches are generally recommended.

This is debated. Some argue that prevention is key since aging damage accumulates gradually. Others suggest waiting until natural decline begins (typically 30s-40s). Younger individuals might focus on lifestyle optimization first, with peptides as tools for later decades.

This page is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare professional before starting any peptide protocol.