Metabolic Health & Weight Management
Semaglutide
A long-acting GLP-1 receptor agonist and the most heavily studied peptide in modern metabolic medicine.
- Evidence
- AStrong Clinical Evidence
- Regulatory status
- FDA Approved for Specific Indication
Peptide Library
Every compound, graded on evidence
Search by name, research area or evidence grade. Each guide explains what is known, what is only preclinical, and what remains unknown.
Research area
Evidence grade
35 of 35 entries
Metabolic Health & Weight Management
Tirzepatide
A dual GIP and GLP-1 receptor agonist that produced the largest weight reductions seen in a completed obesity phase 3 programme at the time of publication.
- Evidence
- AStrong Clinical Evidence
- Regulatory status
- FDA Approved for Specific Indication
Metabolic Health & Weight Management
Retatrutide
An investigational triple incretin agonist that produced very large weight reductions in phase 2 research.
- Evidence
- BModerate Human Evidence
- Regulatory status
- Clinical Trials
Metabolic Health & Weight Management
Cagrilintide
A long-acting amylin analogue studied alone and in combination with semaglutide.
- Evidence
- CEarly Human Research
- Regulatory status
- Clinical Trials
Metabolic Health & Weight Management
Liraglutide
A daily GLP-1 receptor agonist and the reference point against which newer incretin drugs are measured.
- Evidence
- AStrong Clinical Evidence
- Regulatory status
- FDA Approved for Specific Indication
Metabolic Health & Weight Management
AOD-9604
A growth hormone fragment once developed for obesity, with disappointing human results.
- Evidence
- DPreclinical Research
- Regulatory status
- Not FDA Approved
Metabolic Health & Weight Management
5-Amino-1MQ
A small-molecule NNMT inhibitor discussed alongside peptides, with no human evidence base.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Recovery & Tissue Research
BPC-157
The most discussed recovery peptide in wellness culture, and one of the clearest examples of a preclinical evidence base being read as clinical proof.
- Evidence
- DPreclinical Research
- Regulatory status
- Not FDA Approved
Recovery & Tissue Research
TB-500
A synthetic fragment related to thymosin beta-4, studied in animal wound-healing models.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Skin & Hair Research
GHK-Cu
A naturally occurring copper-binding tripeptide with the strongest evidence in topical skin research.
- Evidence
- CEarly Human Research
- Regulatory status
- Not FDA Approved
Growth Hormone Research
CJC-1295
A long-acting growth hormone releasing hormone analogue with published phase 1 human data and no outcome evidence.
- Evidence
- CEarly Human Research
- Regulatory status
- Not FDA Approved
Growth Hormone Research
Ipamorelin
A selective growth hormone secretagogue often paired with GHRH analogues in community protocols.
- Evidence
- DPreclinical Research
- Regulatory status
- Not FDA Approved
Growth Hormone Research
Sermorelin
The shortest active fragment of GHRH, historically approved and used diagnostically.
- Evidence
- BModerate Human Evidence
- Regulatory status
- FDA Approved for Specific Indication
Growth Hormone Research
Tesamorelin
A stabilised GHRH analogue and the clearest example of a growth hormone axis peptide passing full regulatory review.
- Evidence
- AStrong Clinical Evidence
- Regulatory status
- FDA Approved for Specific Indication
Longevity
Epitalon
A four-amino-acid peptide central to longevity marketing and unsupported by modern controlled evidence.
- Evidence
- EExperimental / Limited Evidence
- Regulatory status
- Not FDA Approved
Mitochondrial Research
MOTS-c
A mitochondrial-derived peptide studied in exercise physiology and metabolic regulation.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Mitochondrial Research
SS-31 (Elamipretide)
A cardiolipin-targeting mitochondrial peptide that has reached genuine clinical trials, with mixed outcomes.
- Evidence
- CEarly Human Research
- Regulatory status
- Clinical Trials
Cognitive & Neurological Research
Semax
A synthetic ACTH fragment analogue used clinically in Russia and unapproved elsewhere.
- Evidence
- EExperimental / Limited Evidence
- Regulatory status
- Not FDA Approved
Cognitive & Neurological Research
Selank
A tuftsin-derived peptide studied for anxiety in Russian clinical research.
- Evidence
- EExperimental / Limited Evidence
- Regulatory status
- Not FDA Approved
Sleep Research
DSIP
A nonapeptide isolated from rabbit brain in the 1970s, still discussed for sleep despite inconsistent evidence.
- Evidence
- DPreclinical Research
- Regulatory status
- Not FDA Approved
Sexual Health Research
PT-141 (Bremelanotide)
A melanocortin receptor agonist approved for a narrowly defined sexual desire disorder.
- Evidence
- AStrong Clinical Evidence
- Regulatory status
- FDA Approved for Specific Indication
Skin & Hair Research
Melanotan II
An unregulated tanning peptide with documented case-report harms and no approval.
- Evidence
- EExperimental / Limited Evidence
- Regulatory status
- Not FDA Approved
Immune & Inflammation Research
Thymosin Alpha-1
An immunomodulatory thymic peptide with real clinical trial data and approvals outside the US.
- Evidence
- BModerate Human Evidence
- Regulatory status
- Clinical Trials
Immune & Inflammation Research
KPV
The anti-inflammatory C-terminal tripeptide of alpha-MSH, studied in gut inflammation models.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Hormonal Research
Gonadorelin
Synthetic gonadotropin-releasing hormone, used diagnostically and increasingly in compounded hormonal practice.
- Evidence
- BModerate Human Evidence
- Regulatory status
- FDA Approved for Specific Indication
Performance Research
GHRP-6
An early growth hormone releasing peptide with pronounced appetite effects and no approved use.
- Evidence
- DPreclinical Research
- Regulatory status
- Not FDA Approved
Longevity
Glutathione
The body's principal intracellular antioxidant tripeptide, widely supplemented and modestly evidenced.
- Evidence
- CEarly Human Research
- Regulatory status
- Not FDA Approved
Mitochondrial Research
NAD+
A central metabolic coenzyme studied for mitochondrial function and ageing biology, usually supplied as a 500 mg lyophilised research vial.
- Evidence
- CEarly Human Research
- Regulatory status
- Not FDA Approved
Immune & Inflammation Research
VIP
A 28-amino-acid signalling peptide with vasodilatory and immunomodulatory activity, studied clinically as aviptadil and used intranasally in research contexts.
- Evidence
- CEarly Human Research
- Regulatory status
- Investigational
Recovery & Tissue Research
Cartalax
A short synthetic tripeptide from Russian peptide research, studied in cell models of cartilage and connective tissue, with no human trial data.
- Evidence
- EExperimental / Limited Evidence
- Regulatory status
- Research Use Only
Research Blends
CJC-1295 + Ipamorelin Blend
A combination research vial pairing a long-acting GHRH analogue with a selective ghrelin receptor agonist, commonly supplied as 10 mg of each.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Research Blends
BPC-157 + TB-500 Blend
A combination research vial pairing two peptides studied in animal models of tissue repair, commonly supplied as 10 mg of each.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Research Blends
GLOW Blend
A three-component research blend of GHK-Cu, BPC-157 and TB-500, typically supplied as a 70 mg vial and discussed in skin and tissue research contexts.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Research Blends
KLOW Blend
A four-component research blend adding KPV to the GHK-Cu, BPC-157 and TB-500 combination, typically supplied as an 80 mg vial.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only
Research Blends
Semax + Selank Blend
A combination research vial pairing two Russian nootropic and anxiolytic peptides, commonly supplied as 10 mg of each.
- Evidence
- DPreclinical Research
- Regulatory status
- Research Use Only