05 / Peptides

Peptides

A reference library of single peptides and named blends, with source context and evidence labels.

At a glance

20 singles, 6 blends, and clear evidence labels before the longer notes.

Vial math for the catalog.

Select a single or blend, enter the vial and water amounts, and calculate concentration and syringe volume.

25 reference entries map directly to calculator records.

Open peptide calculator

Supply links.

These links do not describe my current setup.

Blends, then singles.

These are sourced notes, not a record of what I use. Evidence labels describe the underlying research, not a recommendation.

Named blends

06
blendComponent extrapolationSource note

10

GLOW

Three ingredients in one vial. Nothing has been studied about the combination itself.

Composition
57.27 mg GHK-Cu · 12.54 mg BPC-157 · 10.45 mg TB-500
Common context
Marketed as a combined tissue, skin, and recovery blend.
Mechanism, evidence, and sources

Mechanism: Combines copper-peptide signaling with two research compounds discussed around tissue-repair pathways; a combined mechanism has not been established clinically.

Evidence: The named blend has no established clinical evidence as a formulation. Evidence must be assessed component by component, and the injectable claims are generally weaker than topical GHK-Cu research.

The composition here exists so the calculator can do the math. Putting three compounds in one vial and naming it does not create evidence for the mixture, and the injectable GHK-Cu claims are considerably weaker than the topical research they borrow from.

  • Local Pep-Pedia-derived dataset — Identity and named-blend context only; old dose, cycle, storage, and outcome strings were excluded.
  • Andrew Huberman — Notes that BPC-157 lacks randomized human trials.
  • Andrew Huberman — Independent identity and purity testing context for peptide products.
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blendComponent extrapolationSource note

20

KLOW

A four-way repair blend, sold on skin and inflammation language.

Composition
15 mg GHK-Cu · 5 mg TB-500 · 5 mg BPC-157 · 2 mg KPV
Common context
Sold as a broad repair-oriented blend with skin and inflammatory-signaling language.
Mechanism, evidence, and sources

Mechanism: Pairs copper-peptide signaling with three research peptides discussed around tissue and inflammatory pathways; the combination itself has not been clinically characterized.

Evidence: Evidence is extrapolated from four separate components. The named combination has no established human evidence, and several components remain primarily preclinical research topics.

The component list is here for identification and dose math. Four ingredients means four separate evidence questions, and several of them are answered mostly by animal studies.

  • Local Pep-Pedia-derived dataset — Identity and blend composition provenance only.
  • Andrew Huberman — Broad peptide-category framing rather than evidence for this proprietary blend.
  • Andrew Huberman — Independent product-testing context.
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blendComponent extrapolationSource note

30

Wolverine

Two research compounds, neither with controlled human evidence behind the claims.

Composition
5 mg TB-500 · 5 mg BPC-157
Common context
Commonly marketed for injury recovery and connective-tissue support.
Mechanism, evidence, and sources

Mechanism: Combines two compounds discussed around angiogenesis, cell migration, and tissue-repair signaling; a clinically validated combined mechanism is not established.

Evidence: The blend has no established clinical evidence. BPC-157 lacks randomized human trials, while TB-500 product identity should not be conflated with full-length thymosin beta-4 research.

The name is marketing. Judge the two ingredients separately: BPC-157 has no randomized human trials, and TB-500 is not the same thing as the full-length thymosin beta-4 its research is borrowed from.

  • Local Pep-Pedia-derived dataset — Named blend and composition provenance only.
  • Andrew Huberman — Explicitly distinguishes BPC-157 discussion from randomized human-trial evidence.
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blendComponent extrapolationSource note

40

Healing

A three-part repair blend named after the outcome it has not demonstrated.

Composition
5 mg TB-500 · 2.5 mg BPC-157 · 2 mg KPV
Common context
Marketed around tissue recovery and inflammatory signaling.
Mechanism, evidence, and sources

Mechanism: Groups research compounds associated with tissue and inflammatory pathways; no validated mechanism exists for the fixed blend.

Evidence: The formulation does not have established clinical evidence. Its name is promotional, and the evidence base is limited to separate component research.

Worth stating plainly: “Healing” is what the vendor called it. No study attaches to this combination.

  • Local Pep-Pedia-derived dataset — Blend identity and calculator composition provenance only.
  • Andrew Huberman — Independent product-testing context is especially relevant to compounded blends.
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blendComponent extrapolationSource note

50

CJC-1295 / Ipamorelin

Two compounds pushing growth-hormone release through different receptors.

Composition
2 mg CJC-1295 without DAC · 5 mg Ipamorelin
Common context
Discussed as a paired growth-hormone secretagogue formulation.
Mechanism, evidence, and sources

Mechanism: CJC-1295 without DAC is a short-acting GHRH analog; ipamorelin is a ghrelin-receptor agonist. Both can signal toward pulsatile growth-hormone release.

Evidence: The physiological rationale comes from the two signaling pathways, but the fixed commercial blend has limited direct human evidence and should not inherit claims made for other GH-axis drugs.

The pairing has a real physiological rationale: the two compounds act on different receptors that both feed GH release. That is a reason to expect something, not evidence that this fixed ratio does what is claimed. Note the “without DAC” - the long-acting version is a different drug.

  • Local Pep-Pedia-derived dataset — Paired-protocol identity and calculator composition provenance only.
  • Andrew Huberman — Places GH secretagogues within a broader peptide-category framework.
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blendComponent extrapolationSource note

60

Beauty

No standard composition exists. Read the actual label.

Composition
Vendor-specific composition; verify the vial label
Common context
Usually marketed with skin, hair, or cosmetic-recovery language.
Mechanism, evidence, and sources

Mechanism: No blend-level mechanism can be assigned until the actual components are known.

Evidence: There is no single Beauty formulation to evaluate. Any evidence review must start with the exact ingredients and amounts on the specific product label.

This entry deliberately has no calculator link, because there is no formula to compute against. Anyone selling you “Beauty” has to tell you what is in it before the question of evidence can even be asked.

  • Local Pep-Pedia-derived dataset — Used only to preserve the common vendor name; no standard formula was inferred.
  • Andrew Huberman — Independent identity and purity testing is relevant when a marketing name does not define a standard formula.

Repair and tissue signaling

03
singlePreclinicalSource note

110

BPC-157

Enormous popularity, animal-and-lab evidence only.

Identity
Body Protection Compound 157
Common context
Experimental tendon, ligament, muscle, and gastrointestinal repair discussions.
Mechanism, evidence, and sources

Mechanism: Preclinical work explores angiogenesis, nitric-oxide signaling, cell migration, and tissue-repair pathways; a therapeutic human mechanism is not established.

Evidence: Mechanistic and animal findings do not establish human benefit. Andrew Huberman explicitly notes the lack of randomized human trials.

The gap is the whole story. BPC-157 is everywhere in injury-recovery discussion, and Huberman is direct that the randomized human trials do not exist. The animal work is genuinely interesting, which is not the same as knowing what it does in people.

  • Local Pep-Pedia-derived dataset — Identity and community context only; dosing and outcome claims were excluded.
  • Andrew Huberman — States that BPC-157 lacks randomized human trials.
  • Andrew Huberman — Independent product-testing context.
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singleLimited human dataSource note

120

TB-500

The research is on thymosin beta-4. The product usually is not.

Identity
Thymosin beta-4 fragment product
Common context
Experimental soft-tissue recovery, wound repair, and mobility discussions.
Mechanism, evidence, and sources

Mechanism: Thymosin beta-4 biology includes actin binding, cell migration, and wound-repair signaling; the identity and equivalence of TB-500 products require care.

Evidence: Some human research exists for full-length or formulated thymosin beta-4, but that evidence cannot automatically be assigned to products sold as TB-500.

One rule covers this entry: evidence about thymosin beta-4 is not evidence about whatever is in a vial labelled TB-500. The names get used interchangeably in marketing copy and they should not be.

  • Local Pep-Pedia-derived dataset — Identity and community context only; kept distinct from full-length thymosin beta-4.
  • Andrew Huberman — Independent identity and purity testing context.
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singleLimited human dataSource note

130

GHK-Cu

Decent evidence on skin. Much thinner evidence in a syringe.

Identity
Copper tripeptide-1
Common context
Topical skin-care and hair products; also appears in injectable community blends.
Mechanism, evidence, and sources

Mechanism: Binds copper and is studied in extracellular-matrix, wound-remodeling, and gene-signaling contexts.

Evidence: Human cosmetic research is largely topical. It should not be used as direct support for injectable dosing, systemic outcomes, or proprietary blends.

Route is the entire question. GHK-Cu has a legitimate cosmetic research base, and all of it is topical. That data quietly migrates into marketing for injectable blends where it does not apply.

  • Local Pep-Pedia-derived dataset — Topical protocols and injectable calculator identity were kept separate during curation.
  • Andrew Huberman — Independent testing context for nonstandard injectable products.
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Growth-hormone axis

05
singleLimited human dataSource note

210

CJC-1295 without DAC

Short-acting. Not the DAC version, despite the shared name.

Identity
Modified GRF 1-29
Common context
Growth-hormone-axis research and paired CJC/ipamorelin formulations.
Mechanism, evidence, and sources

Mechanism: Mimics growth-hormone-releasing hormone signaling at the pituitary, with a shorter exposure profile than the DAC-bound analog.

Evidence: Human evidence for this short-acting formulation and common compounded protocols is limited. Findings from CJC-1295 with DAC should not be silently transferred to it.

The qualifier matters. This one clears quickly and is meant to mimic natural GH pulses; the DAC version sticks around for days. Findings about one do not transfer to the other, and vendors are careless about which they are selling.

  • Local Pep-Pedia-derived dataset — Identity and “without DAC” distinction only.
  • Andrew Huberman — Growth-hormone secretagogue category context.
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singleHuman trialsSource note

220

CJC-1295 with DAC

Human studies show it raises GH and IGF-1. What that buys you is a separate question.

Identity
CJC-1295 DAC
Common context
Long-acting growth-hormone-axis research.
Mechanism, evidence, and sources

Mechanism: The DAC design binds circulating albumin and extends GHRH-receptor stimulation compared with short-acting analogs.

Evidence: Early human trials characterize hormone responses and pharmacokinetics. They do not establish broad anti-aging, body-composition, or performance outcomes.

Raising a hormone is a measurement, not an outcome. The trials establish that GH and IGF-1 go up and stay up; they do not establish that this makes anyone healthier, and sustained elevation is a different physiological state from the natural pulses.

  • Local Pep-Pedia-derived dataset — Identity and long-acting DAC distinction only.
  • Andrew Huberman — Growth-hormone secretagogue category context.
Open in calculator
singleLimited human dataSource note

230

Ipamorelin

Clean pharmacology, thin outcome evidence for how it is actually used.

Identity
Single compound
Common context
Growth-hormone-axis and paired CJC/ipamorelin discussions.
Mechanism, evidence, and sources

Mechanism: Activates the ghrelin receptor to stimulate growth-hormone release, with selectivity that differentiates it from some earlier secretagogues.

Evidence: Pharmacology and small studies do not establish the recovery, sleep, body-composition, or longevity claims commonly attached to compounded use.

Its selectivity is the selling point - it triggers GH release without much of the cortisol and prolactin effect older secretagogues had. Real pharmacology. It still does not demonstrate the recovery, sleep, or body-composition results attached to it.

  • Local Pep-Pedia-derived dataset — Identity and paired-protocol context only.
  • Andrew Huberman — Growth-hormone secretagogue category context.
Open in calculator
singleLimited human dataSource note

240

Sermorelin

More established than most of this library. The wellness claims are still not the studied use.

Identity
GRF 1-29
Common context
Growth-hormone evaluation and off-label secretagogue discussions.
Mechanism, evidence, and sources

Mechanism: Stimulates pituitary GHRH receptors and endogenous growth-hormone release.

Evidence: Historical human use supports its GHRH activity, not broad claims about sleep, recovery, body composition, or aging. Andrew Huberman’s PSA/sleep post is a personal anecdote, not a trial.

Its clinical history is real, and it is a history of diagnostics and deficiency, not of healthy adults chasing recovery. Huberman’s public post about his own PSA and sleep is one person’s report — useful for raising the question, worthless for predicting your result.

  • Local Pep-Pedia-derived dataset — Identity and community context only.
  • Andrew Huberman — Personal PSA and sleep anecdote; explicitly not clinical outcome evidence.
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singleEstablished human useSource note

250

Tesamorelin

Genuine approval and trial evidence, attached to one specific condition.

Identity
Single compound
Common context
HIV-associated lipodystrophy and off-label metabolic discussions.
Mechanism, evidence, and sources

Mechanism: Stimulates endogenous growth-hormone release through GHRH receptors, influencing IGF-1 and visceral-fat metabolism.

Evidence: Condition-specific approval and trials make this evidence base more mature than most entries here. That does not generalize to routine body recomposition or anti-aging use.

The best illustration on this page of why “has human evidence” is an incomplete sentence. Tesamorelin has the strongest regulatory footing of any GH-axis entry here, for reducing visceral fat in HIV-associated lipodystrophy. That is not evidence for using it to lean out.

  • Local Pep-Pedia-derived dataset — Identity and community context only; condition-specific evidence remains the important distinction.
  • Andrew Huberman — Places tesamorelin within the GH-axis peptide category.
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Metabolic

05
singleHuman trialsSource note

310

AOD-9604

It was properly tested for fat loss. That is the problem - it was tested and disappointed.

Identity
HGH fragment 176-191 analog
Common context
Experimental fat-loss and metabolic research.
Mechanism, evidence, and sources

Mechanism: Designed around a region of growth hormone associated with lipolytic signaling while attempting to avoid full GH growth effects.

Evidence: Human development included obesity studies, yet efficacy was not established as hoped. Community positioning should not erase that negative or inconclusive history.

Usually the complaint about these compounds is untested. Here the opposite: it was tested in humans for obesity and the results did not support the hypothesis. Still sold on the original mechanism story, with the trial history left out.

  • Local Pep-Pedia-derived dataset — Identity and historical community context only.
  • Andrew Huberman — Broad metabolic peptide-category context.
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singleEstablished human useSource note

320

Semaglutide

Strong outcome data in the studied populations. Whether it suits you is a medical conversation.

Identity
Single compound
Common context
Type 2 diabetes, obesity treatment, and cardiometabolic-risk discussions.
Mechanism, evidence, and sources

Mechanism: Activates GLP-1 receptors, affecting appetite, gastric emptying, insulin signaling, and glucagon regulation.

Evidence: This has far more mature evidence than most entries here. Layne Norton emphasizes reduced energy intake as a major mechanism and questions universal use; that framing does not replace individualized medical assessment.

The evidence is strong enough that the useful questions move from “does it do anything?” to indication, tradeoffs, adherence, lean-mass protection, and long-term planning.

  • Local Pep-Pedia-derived dataset — Identity and catalog provenance only.
  • Layne Norton — Frames reduced energy intake as central to GLP-1-associated weight loss.
  • Layne Norton — Raises the question of whether use should be universal rather than assuming it is.
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singleEstablished human useSource note

330

Tirzepatide

Mature evidence. Trial averages still do not tell you your own answer.

Identity
Single compound
Common context
Type 2 diabetes, obesity treatment, and cardiometabolic-risk discussions.
Mechanism, evidence, and sources

Mechanism: Activates GIP and GLP-1 receptors, influencing appetite, glucose regulation, insulin signaling, and gastric function.

Evidence: Evidence supports substantial metabolic effects in studied populations. Layne Norton’s energy-intake framing and non-universal-use question keep the mechanism and decision context grounded.

As with semaglutide, treatment evidence and a personal decision are related but separate layers.

  • Local Pep-Pedia-derived dataset — Identity and catalog provenance only.
  • Layne Norton — Energy-intake framing for incretin-associated weight loss.
  • Layne Norton — Questions the idea of universal GLP-1 use.
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singleHuman trialsSource note

340

Retatrutide

Promising and unfinished. Long-term safety is not yet in.

Identity
Single compound
Common context
Obesity, metabolic disease, and next-generation incretin research.
Mechanism, evidence, and sources

Mechanism: Combines GIP and GLP-1 receptor agonism with glucagon-receptor activity to affect appetite, glucose regulation, and energy expenditure.

Evidence: Human trials support meaningful metabolic effects, while longer-term outcomes and broader claims remain under study. Attia’s geroprotection/cognition comments and Patrick’s genetics context are emerging hypotheses, not settled indications.

The triple-receptor design is the headline, but trial phase, duration, tolerability, and final indications still matter more than novelty.

  • Local Pep-Pedia-derived dataset — Identity and catalog provenance only.
  • Peter Attia — Emerging GLP-1 geroprotection and cognition context; speculative beyond established metabolic outcomes.
  • Rhonda Patrick — Emerging GLP-1 receptor genetics context; not direct retatrutide outcome evidence.
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singleLimited human dataSource note

350

MOTS-c

Real endogenous biology, early evidence for the injectable version.

Identity
Mitochondrial open reading frame of the 12S rRNA-c
Common context
Mitochondrial function, exercise adaptation, insulin sensitivity, and healthy-aging research.
Mechanism, evidence, and sources

Mechanism: Studied as a mitochondrial stress signal that can influence cellular metabolism, AMPK-related pathways, and adaptation to energetic demand.

Evidence: Human observational and early translational work does not establish the benefits claimed for exogenous MOTS-c products.

Three separate steps get collapsed in the marketing: the body makes it, higher natural levels correlate with better metabolic health, and therefore injecting it helps. The first two are established. The third does not follow from them.

  • Local Pep-Pedia-derived dataset — Identity and community context only.
  • Andrew Huberman — Broad metabolic and mitochondrial peptide-category context.
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Immune signaling

02
singlePreclinicalSource note

140

KPV

Interesting inflammatory research, essentially all preclinical.

Identity
Lysine-proline-valine
Common context
Experimental gut, skin, and inflammatory-signaling discussions; also included in named blends.
Mechanism, evidence, and sources

Mechanism: Studied for effects on inflammatory transcription and immune signaling, including pathways often described around NF-kappa-B.

Evidence: The research base is predominantly preclinical. Community use and blend inclusion do not establish clinical efficacy.

Early research, not a therapy. Appearing as an ingredient in several sold blends says something about marketing, not about evidence.

  • Local Pep-Pedia-derived dataset — Identity and community context only.
  • Andrew Huberman — Broad immune and tissue peptide-category context, not direct evidence for KPV.
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singleHuman trialsSource note

430

Thymosin alpha-1

Real clinical evidence, tied to particular diseases and places.

Identity
Thymalfasin
Common context
Immune modulation, infection, and oncology-adjunct research.
Mechanism, evidence, and sources

Mechanism: Modulates innate and adaptive immune signaling, including dendritic-cell and T-cell activity.

Evidence: Human trials and international medical use exist, but results depend on the condition and regimen. That does not support general “immune boosting” claims.

Modulation, not boosting. The distinction is not pedantry: the trials are in people with specific conditions - hepatitis, sepsis, some cancers - and what helps a compromised immune system is not a general upgrade for a working one.

  • Local Pep-Pedia-derived dataset — Identity and community context only; condition-specific evidence should remain attached.
  • Andrew Huberman — Broad immune-peptide category context.
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Pigmentation and sexual health

03
singleLimited human dataSource note

510

Melanotan I

Afamelanotide is a regulated implant. A research vial is not that.

Identity
Afamelanotide-related analog
Common context
Experimental tanning and pigmentation discussions.
Mechanism, evidence, and sources

Mechanism: Activates melanocortin-1 receptors and promotes eumelanin production.

Evidence: Afamelanotide has condition-specific human evidence as a controlled implant. That formulation and oversight do not validate unregulated products sold as Melanotan I.

Afamelanotide is approved for a rare light-sensitivity disorder, delivered as a controlled implant under supervision. Sharing a molecule name with a grey-market vial does not transfer any of the manufacturing, dosing, or oversight that evidence depended on.

  • Local Pep-Pedia-derived dataset — Identity and community context only; kept distinct from the afamelanotide implant.
  • Andrew Huberman — Independent identity and purity testing context.
Open in calculator
singleLimited human dataSource note

520

Melanotan II

No approved version. Sold for tanning through research-product channels.

Identity
Single compound
Common context
Experimental tanning and sexual-function discussions.
Mechanism, evidence, and sources

Mechanism: Activates multiple melanocortin receptors, affecting pigmentation and central pathways involved in appetite and sexual response.

Evidence: Small human studies and derivative-drug development do not establish the safety or quality of Melanotan II sold through research-product channels.

The lack of selectivity is the point and the problem: the same broad receptor activity that drives pigmentation also drives nausea, appetite suppression, and arousal effects. Sold entirely through unregulated channels, so identity and purity are open questions on top of that.

  • Local Pep-Pedia-derived dataset — Identity and community context only.
  • Andrew Huberman — Independent product-testing context.
Open in calculator
singleEstablished human useSource note

530

PT-141

Approved as bremelanotide for one indication. A research vial is a different proposition.

Identity
Bremelanotide-related product
Common context
Sexual-interest and arousal discussions.
Mechanism, evidence, and sources

Mechanism: Acts centrally through melanocortin receptors involved in sexual-response pathways rather than through peripheral vasodilation alone.

Evidence: A regulated bremelanotide product has human trial and clinical-use evidence for a defined indication. That evidence should not be transferred wholesale to compounded or research-market PT-141.

Bremelanotide is approved for hypoactive sexual desire disorder in premenopausal women, which is a narrow indication and not how PT-141 is generally discussed. The trial evidence describes a manufactured, dosed drug; it says nothing about the contents of an unregulated vial.

  • Local Pep-Pedia-derived dataset — Identity and community context only; kept distinct from branded bremelanotide.
  • Andrew Huberman — Independent identity and purity testing context for nonstandard products.
Open in calculator

Longevity and sleep research

02
singleLimited human dataSource note

410

DSIP

The name is a hypothesis from decades ago, not a finding.

Identity
Delta sleep-inducing peptide
Common context
Experimental sleep, stress, and pain discussions.
Mechanism, evidence, and sources

Mechanism: Proposed to influence sleep and neuroendocrine regulation, but a consistent therapeutic mechanism has not been established.

Evidence: Small and older studies are heterogeneous, and the peptide’s endogenous role remains debated. It is not an established insomnia treatment.

The studies are old, small, and inconsistent, and researchers still disagree about what it does naturally. If you want something for sleep, the boring options have far better evidence.

  • Local Pep-Pedia-derived dataset — Identity and historical community context only.
  • Andrew Huberman — Broad peptide-category context, not direct support for DSIP efficacy.
Open in calculator
singleLimited human dataSource note

420

Epitalon

Big claims, thin and largely unreplicated evidence.

Identity
Epithalon
Common context
Experimental healthy-aging, circadian, and telomere discussions.
Mechanism, evidence, and sources

Mechanism: Proposed effects include pineal signaling, oxidative-stress pathways, and telomerase-related activity, with uncertain clinical relevance.

Evidence: Much of the cited work is small, older, or not easily generalized. Telomerase and lifespan narratives should be treated as hypotheses rather than demonstrated human outcomes.

Most of the cited research traces to a small number of older studies from one research group, much of it difficult to access or independently verify. That is a reason for caution regardless of how appealing the telomerase story sounds.

  • Local Pep-Pedia-derived dataset — Identity and longevity-community context only.
  • Andrew Huberman — Broad longevity peptide-category context, not verification of Epitalon claims.
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