Research compound
Tissue & recovery
BPC-157
An experimental peptide investigated in tissue and gastrointestinal research.
Evidence snapshotEarly human / preclinical
Read the evidence THE LONGEVITY LABRESEARCH & EDUCATION
THE PEPTIDE LIBRARY
Understand the science.
Know the limits.
A considered guide to peptides and related compounds. Explore what is being studied, what human evidence exists and where questions remain.
Research compounds are not offered for human use. No peptides are sold on this website. An online “research use only” label does not establish safety or approval. Some entries concern licensed medicines; these are identified separately and included only as medical background.
THE RESEARCH LIBRARY
Explore the evidence.
Browse by research area, search a name, or compare the stage of the evidence.
24 of 24 topics
Research compound
Tissue & recovery
TB-500
A research name associated with a fragment of thymosin beta-4.
Evidence snapshotPreclinical / uncertain identity
Read the evidence Research compound
Skin & tissue
GHK-Cu
A copper-binding peptide discussed in skin and connective-tissue research.
Evidence snapshotPreclinical; route matters
Read the evidence Research compound
Growth-hormone signalling
CJC-1295 with DAC
A long-acting growth-hormone-releasing hormone analogue studied in adults.
Evidence snapshotHuman hormone studies
Read the evidence Research compound
Growth-hormone signalling
CJC without DAC / modified GRF
A label often used for a shorter-acting GHRH analogue.
Evidence snapshotEvidence cannot be transferred
Read the evidence Research compound
Growth-hormone signalling
Ipamorelin
A ghrelin-receptor agonist investigated for hormonal and gastrointestinal effects.
Evidence snapshotHuman trials for specific questions
Read the evidence Research context
Growth-hormone signalling
Sermorelin
An analogue of part of growth-hormone-releasing hormone.
Evidence snapshotHuman hormone studies
Read the evidence Medicine background
Growth-hormone signalling
Tesamorelin
A GHRH analogue with a specific US licensed medical use.
Evidence snapshotUS approval for a specific indication
Read the evidence Research compound
Growth-hormone signalling
Hexarelin
A synthetic growth-hormone-releasing peptide.
Evidence snapshotSmall human studies
Read the evidence Research compound
Growth-hormone signalling
GHRP-6
A growth-hormone secretagogue studied in endocrine and sleep experiments.
Evidence snapshotSmall human studies
Read the evidence Research compound
Metabolic research
AOD-9604
A modified growth-hormone fragment investigated in fat-metabolism research.
Evidence snapshotPreclinical findings
Read the evidence Research context
Immune research
Thymosin alpha-1
An immune-signalling peptide investigated in defined clinical conditions.
Evidence snapshotHuman trials; results vary by setting
Read the evidence Research compound
Metabolic research
MOTS-c
A mitochondrial-derived peptide studied in energy metabolism.
Evidence snapshotMainly preclinical
Read the evidence Medicine background
Mitochondria & ageing
SS-31 / elamipretide
A mitochondria-targeting peptide with a specific US medical approval.
Evidence snapshotUS accelerated approval; narrow indication
Read the evidence Research compound
Mitochondria & ageing
Epitalon / Epithalon
A short peptide discussed in telomere and ageing research.
Evidence snapshotCell and preclinical research
Read the evidence Research compound
Brain & nervous system
Pinealon
A peptide investigated in experimental neurological models.
Evidence snapshotPreclinical
Read the evidence Research compound
Reproductive & sexual health
Kisspeptin
A family of peptides involved in reproductive hormone signalling.
Evidence snapshotEarly human trials
Read the evidence Medicine background
Reproductive & sexual health
PT-141 / bremelanotide
A melanocortin-receptor agonist with a specific US licensed use.
Evidence snapshotUS approval for a specific indication
Read the evidence Research context
Skin & tissue
Melanotan I & II
Names commonly used online for pigmentation-related products.
Evidence snapshotSafety concerns; products differ
Read the evidence Research context
Brain & nervous system
Cerebrolysin
A preparation containing peptides and amino acids, rather than one defined peptide.
Evidence snapshotCondition-specific human trials
Read the evidence Investigational medicine
Metabolic research
Retatrutide
An investigational agonist of GIP, GLP-1 and glucagon receptors.
Evidence snapshotPhase 3 human trials
Read the evidence Medicine background
Metabolic research
Semaglutide
An active ingredient in licensed prescription medicines for specified uses.
Evidence snapshotUK licensed medicines exist
Read the evidence Medicine background
Metabolic research
Tirzepatide
An active ingredient acting at GIP and GLP-1 receptors.
Evidence snapshotUK licensed medicine exists
Read the evidence Related non-peptide compound
Growth-hormone signalling
MK-677 / ibutamoren
A non-peptide growth-hormone secretagogue, often discussed alongside peptides.
Evidence snapshotHuman studies; safety concerns
Read the evidence Research areas describe what scientists have investigated. They are not claims that a compound treats a condition.
HOW TO READ THIS LIBRARY
Evidence before
expectations.
01 / A mechanism is a starting point.
A result in cells or animals cannot establish a benefit in people. Early human studies may look only at short-term hormone changes or tolerability.
02 / Context changes the conclusion.
The exact molecule, formulation, study population and outcome matter. A medicine approved for one condition is not proven for general wellbeing or longevity.
03 / Commentary is not a clinical trial.
Public discussions help explain why a topic is receiving attention. Our entries link to studies and regulatory information so you can distinguish commentary from evidence.
FURTHER READING
Conversations that inform the questions.
This library includes topics discussed publicly by Andrew Huberman, Dr Abud Bakri and Ways2Well. These are reference sources, not advisers affiliated with The Longevity Lab. Their inclusion is not an endorsement of a compound or a substitute for clinical evidence.
CommentaryHuberman Lab: Benefits & Risks of Peptide Therapeutics (2024)Read source ↗CommentaryHuberman Lab with Dr Abud Bakri: Peptides, Science, Uses & Safety (2026)Read source ↗Provider commentaryWays2Well: published peptide service informationRead source ↗
Evidence and status checked 8 October 2026. This is a curated introduction, not a systematic review. Research and regulatory status can change. Each topic has its own references.
A CONVERSATION WITH MATTHEW
Make sense of
the research.
Request a peptide information consultation with Matthew Baker to discuss the evidence, its limits and questions to take to your medical professional.
This is an educational discussion. It does not include prescribing, supplying peptides or instructions for self-administration.
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