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The Peptide Knowledge Base

Every peptide everyone's asking about, explained simply, graded honestly.

What it is, whether it works, and how people actually combine it. Browse by what you want, by the stacks people search, or molecule by molecule.

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Filter54 results
All molecules · 54
Every molecule, with the verdict and the grade on the card.
5-Amino-1MQGradeD
NNMT inhibitor · non-peptide

A non-peptide small-molecule NNMT inhibitor marketed for fat-cell metabolism, research-stage only.

Not availableRead
Acetyl-Hexapeptide-8 (Argireline)GradeC
Topical · 'Botox-like'

A topical cosmetic peptide marketed as a 'Botox-like' expression-line softener, low-risk, well-established in skincare.

Available nowRead
Adipotide (FTPP)GradeD
Fat-vasculature · high-risk

A pro-apoptotic peptide that targets the blood supply of fat tissue, striking animal fat loss, but documented kidney toxicity.

Not availableRead
AOD-9604GradeD
Metabolic · edu-only

A fragment of growth hormone marketed for fat loss, with weak human evidence.

Not availableRead
ARA-290 (Cibinetide)GradeC
EPO-derived · neuropathy

A non-erythropoietic peptide derived from EPO, studied for neuropathic pain and inflammation, some human trial data.

WaitlistRead
BPC-157GradeD
Recovery · repair

A recovery peptide people take in hope of speeding the healing of tendon, joint, muscle, and gut lining.

WaitlistRead
CagrilintideGradeB
Amylin analog · satiety

A long-acting amylin analog studied as the satiety layer that amplifies a GLP-1, the canonical 'companion' molecule.

WaitlistRead
CerebrolysinGradeB
Neurotrophic · evidence-forward

A porcine-derived neurotrophic peptide preparation with a long clinical heritage in stroke and dementia abroad, the most-evidenced nootropic peptide.

WaitlistRead
CJC-1295GradeC
GH-axis · edu-only

A growth-hormone-releasing peptide usually stacked with Ipamorelin, but non-compoundable in the US.

Not availableRead
DihexaGradeD
Synaptogenic · potent

An angiotensin-IV-derived peptide reported as an extremely potent driver of new synapse formation, essentially no human data.

Not availableRead
DSIP (Emideltide)GradeD
Sleep · circadian

Delta-sleep-inducing peptide, studied for sleep quality and stress.

WaitlistRead
EnclomipheneGradeB
Hormonal · by request

An oral medicine, not a peptide, that raises the body's own testosterone, a fertility-sparing alternative to TRT.

WaitlistRead
EpitalonGradeD
Longevity · sleep

A short peptide studied for sleep and circadian support.

WaitlistRead
Follistatin-344GradeD
Myostatin inhibitor · high-risk

A myostatin-inhibiting protein that can drive extreme muscle growth, high-risk, WADA-banned, research-only.

Not availableRead
FOXO4-DRIGradeD
Senolytic · frontier

A senolytic peptide designed to clear senescent ('zombie') cells by triggering their apoptosis, preclinical only.

Not availableRead
GHK-Cu (topical)GradeC
Copper · skin

A copper peptide used topically in skin and hair cosmetics.

Available nowRead
GHRP-2GradeD
GH secretagogue · legacy

A second-generation GH-releasing peptide, more selective than GHRP-6 but still restricted and research-only.

Not availableRead
GHRP-6GradeD
GH secretagogue · legacy

A first-generation GH-releasing peptide that strongly stimulates appetite as well as GH, restricted and research-only.

Not availableRead
GonadorelinGradeB
GnRH · fertility-sparing

A synthetic GnRH used as a TRT adjunct to preserve fertility and natural testicular function, historically approved, now compounded.

WaitlistRead
HexarelinGradeC
GH secretagogue · legacy

A potent ghrelin-receptor GH-releasing peptide from the legacy bodybuilding toolkit, restricted, with prolactin and desensitization issues.

WaitlistRead
HumaninGradeD
Mitochondrial · cytoprotective

A mitochondrial-DNA-encoded cytoprotective peptide studied in aging and metabolic stress, research-stage.

Not availableRead
IGF-1 LR3GradeD
IGF analog · growth

A long-acting IGF-1 analog used in bodybuilding circles for muscle and recovery, potent, banned in sport, and research-only.

Not availableRead
IpamorelinGradeC
GH-axis · edu-only

A selective growth-hormone secretagogue, the usual partner to CJC-1295, also non-compoundable in the US.

Not availableRead
KisspeptinGradeC
Hormonal · libido

A reproductive-hormone signaling peptide studied for libido and fertility pathways.

Not availableRead
KPVGradeD
Gut · anti-inflammatory

A small peptide people ask about for gut and inflammatory support.

WaitlistRead
LL-37GradeD
Antimicrobial · immune

A natural cathelicidin antimicrobial and immune-signaling peptide, restricted, and pro-inflammatory in the wrong context.

Not availableRead
Low-Dose Naltrexone (LDN)GradeC
Immune · edu-only

An off-label low dose of an approved drug, not a peptide, used for immune and inflammatory conditions.

Not availableRead
MetforminGradeB
Metabolic · by request

A first-line diabetes drug, not a peptide, widely studied as a longevity and metabolic agent.

WaitlistRead
MK-677 (Ibutamoren)GradeC
GH secretagogue · oral

An orally-active growth-hormone secretagogue, not a peptide, studied for GH/IGF-1 and appetite.

Not availableRead
MOTS-cGradeD
Mitochondrial · energy

A mitochondrial-derived peptide studied for metabolism and energy.

WaitlistRead
NAD+GradeD
Coenzyme · energy

A coenzyme involved in how your cells make and use energy.

Available nowRead
OrforglipronGradeB
Oral GLP-1 · non-peptide

An investigational non-peptide, small-molecule oral GLP-1 agonist, 'GLP-1 in a daily pill.'

WaitlistRead
OxytocinGradeC
Bonding · intimacy

The bonding-and-arousal neuropeptide, FDA-approved as Pitocin for labor, with off-label intranasal use for intimacy and connection.

WaitlistRead
PE-22-28GradeD
TREK-1 blocker · mood

A spadin-derived peptide that blocks the TREK-1 channel, studied preclinically for fast-acting antidepressant effects.

Not availableRead
PEG-MGF / MGFGradeD
IGF splice variant · repair

A mechano-growth-factor splice variant of IGF-1 used for local muscle repair, research-only, restricted.

Not availableRead
PinealonGradeD
Khavinson bioregulator

A short 'bioregulator' peptide from the Russian Khavinson school, claimed for brain and longevity support, thin Western validation.

Not availableRead
PT-141GradeA
Libido · arousal

An FDA-approved peptide (as Vyleesi) that raises sexual desire by acting on the brain's arousal pathways, not blood flow.

Not availableRead
RapamycinGradeB
Longevity · by request

An mTOR-inhibiting drug, not a peptide, with the deepest lifespan-extension evidence in animal models.

WaitlistRead
RetatrutideGradeB
Triple agonist · weight

An investigational triple GLP-1/GIP/glucagon agonist posting the largest weight-loss numbers recorded so far.

WaitlistRead
SelankGradeC
Nootropic · calm

A nootropic peptide studied for calm and anxiety support.

Not availableRead
SemaglutideGradeA
GLP-1 · weight

A GLP-1 medicine that lowers appetite and blood sugar, the most-studied molecule in the whole category.

Available nowRead
SemaxGradeC
Nootropic · focus

A nootropic peptide studied for focus and mental clarity.

WaitlistRead
SermorelinGradeC
GH-axis · recovery

A peptide that nudges your body's own growth-hormone axis.

Available nowRead
SS-31 / ElamipretideGradeB
Mitochondrial · ATP

A mitochondria-targeting peptide that binds cardiolipin to restore ATP production, and, as of Sept 2025, an FDA-approved drug for one rare disease.

WaitlistRead
SurvodutideGradeB
GLP-1/glucagon · liver

An investigational GLP-1/glucagon dual agonist studied for both weight and liver disease (MASH).

WaitlistRead
TB-500GradeD
Recovery · soft-tissue

A synthetic fragment usually discussed alongside BPC-157 for soft-tissue recovery.

WaitlistRead
TesamorelinGradeA
GH-axis · metabolic

A growth-hormone-axis peptide with FDA-approved origins.

WaitlistRead
TesofensineGradeC
Appetite suppressant · non-peptide

A non-peptide triple-reuptake inhibitor studied as an appetite suppressant, not US-approved, with cardiovascular and psychiatric cautions.

Not availableRead
ThymalinGradeD
Thymic · Khavinson

A thymic peptide preparation from the Khavinson school, claimed for immune restoration, limited independent validation.

Not availableRead
Thymosin Alpha-1GradeB
Immune · edu-only

An immune-modulating peptide with the strongest evidence of the education-only set, but not on the PCAC agenda.

Not availableRead
TirzepatideGradeA
GIP/GLP-1 · weight

A dual GIP/GLP-1 medicine with the strongest weight and metabolic trial data in the category.

Available nowRead
TriptorelinGradeA
GnRH agonist · approved (oncology)

A long-acting GnRH agonist FDA-approved for oncology/endocrine use (Trelstar); biohacker 'hormone restart' use is off-label and illicit.

Not availableRead
VilonGradeD
Khavinson bioregulator

A Khavinson-school dipeptide 'bioregulator' claimed for immune and longevity support, minimal independent evidence.

Not availableRead
VK2735 (Viking)GradeB
Dual GLP-1/GIP · oral

An investigational dual GLP-1/GIP agonist (Viking) being developed in both injectable and oral forms.

WaitlistRead
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Reviewed by the Peptós.LIFE clinical team · Last reviewed June 16, 2026. Statuses read live from the FDA Tracker dataset. Compounded medications are prepared for an individual patient and are not FDA-approved. PCAC is advisory, a favorable vote leads to rulemaking, not instant availability.

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