Good Vita / The learning library

Peptides, with perspective.

A clearer look at the science, the claims, and the unanswered questions. Explore peptides through evidence—not promises.

Educational information only. No medical advice or treatment recommendations.

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Understand peptide terminology, product context, and what a study can actually tell you.

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Browse the collection

Start with a name. Understand the context.

34 source-linked profiles. This is an expanding collection, not an exhaustive catalog of every peptide. Categories describe research topics, not recommended uses. Explore NAD+, B12, and ibutamoren separately as non-peptide compounds.

How to read the evidence labels

34 profiles

Research compounds

Metabolic health

AOD-9604

A compound discussed in peptide marketing about body composition.

Human trial assessment

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Recovery research

BPC-157

An experimental peptide frequently discussed in injury and recovery content.

Limited human evidence

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Hormone research

CJC-1295

A research compound appearing in growth-hormone-related discussions.

Early human study

Education only · Inclusion is not an endorsement

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Research compounds

Brain research

DSIP

An experimental peptide associated with sleep-related research discussions.

Early human study

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Hormone research

Desmopressin

A synthetic vasopressin analogue with effects on the body’s handling of water.

Human studies in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Metabolic health

Dulaglutide

A GLP-1 receptor agonist protein containing modified peptide components.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Longevity research

Epitalon

An experimental peptide commonly promoted in longevity discussions.

Laboratory study

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Metabolic health

Exenatide

A peptide-based GLP-1 receptor agonist used in specific diabetes medicines.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Skin research

GHK-Cu

A copper-containing peptide discussed in skin and injectable-product marketing.

Laboratory study

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Hormone research

GHRP-2

A growth-hormone-releasing peptide studied in experimental contexts.

Early human study

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Hormone research

GHRP-6

A growth-hormone-releasing peptide discussed in research and wellness marketing.

Early human study

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Hormone research

Ipamorelin

A research peptide often discussed alongside other hormone-related compounds.

Human randomized trial

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Immune research

KPV

A short peptide discussed in experimental inflammatory-signaling contexts.

Animal + laboratory study

Education only · Inclusion is not an endorsement

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Research compounds

Immune research

LL-37

A peptide appearing in immune-system research discussions.

Human randomized trial

Education only · Inclusion is not an endorsement

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Approved medicines

Digestive health

Linaclotide

A peptide that acts locally on intestinal guanylate cyclase-C receptors.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Metabolic health

MOTS-c

A peptide appearing in experimental metabolism and longevity discussions.

Animal study + human observations

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Hormone research

Octreotide

A somatostatin analogue that suppresses several hormone secretions.

Human studies in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Digestive health

Plecanatide

A peptide analogue of uroguanylin that activates intestinal guanylate cyclase-C.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Metabolic health

Semaglutide

A peptide-based GLP-1 receptor agonist used in specific prescription medicines.

Human randomized trial

Education only · Inclusion is not an endorsement

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Research compounds

Brain research

Semax

A research peptide often included in cognition-related online discussions.

Animal study

Education only · Inclusion is not an endorsement

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Historical medicines

Hormone research

Sermorelin

A peptide with a history in growth-hormone testing and pediatric growth-hormone deficiency treatment.

Historical regulatory record

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Research compounds

Recovery research

TB-500

A name used for a thymosin beta-4 fragment in research-product discussions.

Evidence gaps identified

Education only · Inclusion is not an endorsement

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Approved medicines

Digestive health

Teduglutide

A glucagon-like peptide-2 analogue used in short bowel syndrome care.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →
Approved medicines

Hormone research

Tesamorelin

A growth-hormone-releasing factor analog used in a specific prescription medicine.

Human trials in product label

Education only · Inclusion is not an endorsement

Explore evidence & limitations →

Read the label, then the study

Evidence has a context.

These labels describe the source highlighted in each profile, not the entire literature. They do not rate safety, endorse use, or indicate FDA approval. Profiles retain the study’s population, outcome, and limitations. A selected historical study is not a claim about the latest development stage.

Human randomized trial

The cited source assigned people to comparison groups. Study design, sample size, measured outcomes, and limitations still matter; this label is not an approval or a quality grade.

Human trials in product label

The cited prescribing information summarizes clinical trials for a specific medicine and indication. It does not validate every use of the same ingredient.

Human studies in product label

The cited product label describes human clinical evidence. This wording does not assume that every supporting study was randomized.

Early human study

The selected source is a small, short-term, pilot, or exploratory human study. Biological changes do not necessarily establish meaningful clinical benefit.

Limited human evidence

Human data exist, but the cited assessment identifies substantial limitations. This does not mean no research exists, nor that effectiveness has been established.

Human trial assessment

The cited regulator assessed human trial information. The original study and its publication limitations should be considered separately from the assessment.

Animal study

The cited experiment was conducted in animals. It cannot by itself establish benefit or safety in people.

Laboratory study

The cited experiment used cells or laboratory systems. Human-derived cells are not human clinical-trial participants.

Animal + laboratory study

The selected source reports animal and cell experiments rather than a human intervention trial.

Animal study + human observations

The cited source combines animal experiments with observations in people. Observing a naturally occurring peptide is different from administering it to people.

Historical regulatory record

The source documents a historical regulatory decision. It is not a new effectiveness trial or approval of a contemporary compounded product.

Evidence gaps identified

The cited regulator identifies missing evidence relevant to the compound. This label makes no unsupported claim that the entire literature contains zero studies.

Biology + safety context

The selected sources explain biological identity and product-safety concerns. They do not establish the marketed wellness claim.

Nutrient evidence summary

The cited NIH resource summarizes nutrient evidence. Evidence for treating deficiency should not be transferred to extra supplementation in people without deficiency.

Our editorial standard

Curiosity needs context.

Evidence before claims

We distinguish labeled medical uses from experimental discussions. A biological mechanism, animal result, or testimonial cannot establish a benefit in people. Negative and inconclusive results remain visible.

Original explanations, visible sources

These original summaries cite primary studies, product labels, and FDA or NIH resources. They are selected educational overviews, not systematic reviews or clinical guidance.

Clear limits, dated context

Each profile shows its source-check and next-check dates. Regulatory context can change. No clinical review is claimed. Approval applies to a specific product and indication; compounded drugs are not FDA approved. FDA context.

Editorial owner: Good Vita Wellness. Our maintenance process calls for a source and status check at least every 90 days, with earlier checks for a reported error, safety alert, label change, or regulatory decision. A planned check date is not a completed review. Corrections are recorded in the update log and source records; medical statements remain explicitly not clinically reviewed.

This library provides no dosing, administration instructions, treatment protocols, product sourcing, or personalized compound selection. Contact Good Vita Wellness to flag an error or suggest a topic. Include the page, statement, and supporting source; do not submit private medical information.

A transparent record

Library updates

October 6, 2026 — Expanded education edition. Expanded all 24 initial profiles with mechanisms, selected evidence, and uncertainties; added 10 profiles; introduced evidence labels and filters, the Start Here guide, and a separate three-compound non-peptide section. Added ownership, source records, and a 90-day editorial-check process. No clinical review performed or claimed.

October 6, 2026 — Initial edition. Published the original 24-profile directory with sources and educational disclaimers.

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