The Peptide Index — Evidence, Community Signal & Regulatory Status | BIOHACKING. EVOLVED.
OUTCOME INTELLIGENCE · MUSCLE & PERFORMANCE

Muscle & Performance

A stronger signal is not the same thing as a stronger athlete.

Strength, hypertrophy, power, endurance, recovery and training adaptation overlap—but they are not interchangeable outcomes. This category is full of claims built from hormonal activity, mitochondrial biology and recovery signals that may or may not translate into better human performance.

The question that matters
Was performance itself measured in humans—or is the claim inferred from physiology?

Raising a hormone, changing a biomarker or influencing a pathway can be biologically meaningful without proving faster, stronger or more durable performance.

01 / DEFINE THE OUTCOME

Performance is not one endpoint.

The cleanest way to evaluate a performance claim is to ask what was actually measured—and whether that measurement matters in the real world.

StrengthForce production measured directly—not inferred from hormone levels or body composition.
HypertrophyChanges in muscle size or lean mass, which do not automatically equal greater strength or athletic performance.
PowerHow quickly force can be produced; a distinct quality from maximal strength.
EnduranceCapacity to sustain work, often involving oxygen delivery, mitochondrial function and substrate use.
RecoveryReturn of readiness after training or injury. Better recovery can support performance without proving a direct ergogenic effect.
AdaptationThe training-driven changes that accumulate over time. Acute biological effects do not automatically improve long-term adaptation.
02 / THE LANDSCAPE

Endocrine signals, mitochondrial biology and real-world outcomes.

The performance conversation mixes together GH-axis compounds, mitochondrial peptides and recovery-oriented molecules. Their evidence maturity—and the outcomes actually studied—vary widely.

Tesamorelin

Approved drug (specific indication)

A growth hormone-releasing factor analog with an FDA-approved indication for reducing excess abdominal fat in adults with HIV-associated lipodystrophy.

Human Evidence●●●●○
Preclinical●●●●○
Overstated
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Sermorelin

Prescription peptide / historical FDA product

A GHRH(1-29) analog that stimulates endogenous growth hormone release and is used clinically in some compounded settings.

Human Evidence●●●○○
Preclinical●●●●○
Mechanistically plausible — broader anti-aging claims exceed evidence
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Ipamorelin

Investigational / compounded use

A selective ghrelin-receptor agonist studied for growth-hormone release and gastrointestinal motility, with limited evidence for common biohacking claims.

Human Evidence●●○○○
Preclinical●●●○○
Not established for general wellness
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CJC-1295

Investigational

A long-acting GHRH analog designed to increase growth hormone and IGF-1 exposure; clinical development remained limited.

Human Evidence●●○○○
Preclinical●●●○○
Hormonal effects documented — performance claims unproven
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GHRP-2

Investigational / non-U.S. use

A ghrelin-receptor agonist and growth-hormone secretagogue studied in humans, but not approved in the U.S. for wellness or performance.

Human Evidence●●○○○
Preclinical●●●○○
Hormonal activity documented — wellness benefits unproven
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GHRP-6

Investigational

A growth-hormone secretagogue that also strongly engages appetite signaling through the ghrelin receptor.

Human Evidence●●○○○
Preclinical●●●○○
Endocrine effects are real — outcomes are uncertain
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Hexarelin

Investigational

A potent growth-hormone secretagogue studied in endocrine and cardiovascular research settings.

Human Evidence●●○○○
Preclinical●●●○○
Potency is not the same as better outcomes
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MOTS-C

Investigational

A mitochondrial-derived peptide studied for metabolic signaling, exercise adaptation and aging biology; human evidence remains early.

Human Evidence●○○○○
Preclinical●●●●○
Biologically interesting — clinically unproven
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Elamipretide (SS-31)

Investigational / clinical development

A mitochondria-targeting tetrapeptide studied in multiple human clinical programs, making it more clinically developed than many biohacking peptides.

Human Evidence●●●○○
Preclinical●●●●○
Mechanism plausible; benefit depends on condition
Explore profile →

Evidence scores are editorial orientation, not performance rankings. A compound can have documented hormonal activity without established benefits for strength, hypertrophy or athletic performance.

03 / COMMUNITY SIGNAL

Why GH-axis and mitochondrial peptides dominate the conversation.

The appeal is easy to understand: growth-hormone signaling sounds anabolic, mitochondrial biology sounds energizing, and recovery compounds sound like a shortcut to more training. The evidence is much less uniform than the narrative.

Biological activity ≠ performance enhancement. Community discussion can tell us what people are trying and why. It cannot establish that a peptide improves strength, muscle growth, endurance or training adaptation.

Open Community Pulse →

04 / CLAIM VS EVIDENCE

Where performance logic breaks down.

“If it raises growth hormone, it builds muscle.”Hormonal activity is not the same as demonstrated hypertrophy, strength gain or improved athletic performance in humans.
“More IGF-1 means better performance.”A biomarker change can confirm biological activity without proving a meaningful functional benefit.
“Mitochondrial support means better endurance.”Mitochondrial physiology can be relevant to endurance, but mechanistic plausibility is not a substitute for controlled performance outcomes.
“Faster recovery means the peptide is ergogenic.”Recovery, pain relief and performance enhancement are related but distinct outcomes. One does not automatically establish the others.
The editorial rule: separate endocrine effects, body-composition changes, recovery signals and actual performance outcomes. Then ask whether the outcome was measured in humans.
05 / BEYOND THE INDEX

The outcome is bigger than peptides.

The strongest performance system is usually built from training, recovery, nutrition and measurement—not a single molecule.

Future coverage can follow resistance training, protein intake, creatine, sleep, periodization, VO₂ testing, body-composition measurement, rehabilitation, wearables and emerging performance therapeutics.

Resistance trainingProteinCreatineSleepPeriodizationVO₂ testingBody compositionWearablesRehabilitation
06 / KEEP READING

Follow the evidence, not the shorthand.

GH-Axis Context

Tesamorelin

Real human evidence and an approved indication—without proving general-purpose muscle or performance enhancement.

Read Tesamorelin →

Mitochondrial Biology

MOTS-c

Human biology is compelling, but endogenous signaling should not be confused with proven exogenous performance benefits.

Read MOTS-c →

Human Evidence · Narrow Context

SS-31 / Elamipretide

Real human evidence and FDA approval in a rare disease context do not validate broad performance claims in healthy people.

Read SS-31 →

Research System

The Peptide Index

Compare Human Evidence, Community Signal, The Gap and regulatory status across the broader library.

Open the Index →

Editorial note: BIOHACKING. EVOLVED. is an educational publication, not a medical provider. This Outcome Hub does not provide diagnosis, dosing, sourcing, treatment or performance-enhancement guidance. Performance claims should be evaluated against the specific human outcome measured, the population studied and the formulation tested.