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UU library
Every peptide, mapped to the body.
160 compounds, from approved medicines to early research molecules. Each one filed by the system research looks at, with its regulatory status and the strength of the evidence behind it.
- Compounds
- 160
- Research summaries
- 39
- At UU
- 56
- Approved medicine71
Approved as a medicine by the FDA or the EMA for at least one indication. Approval covers the named indication and formulation only.
- In clinical trials19
In human clinical trials and not yet approved by the FDA or the EMA. Results to date are from trial populations under medical supervision.
- Research compound53
Not approved as a medicine by the FDA or the EMA. Some are registered in individual countries. Supplied for laboratory research only.
- Cosmetic ingredient17
Used as a topical cosmetic ingredient. Cosmetic use is not a medicinal approval, and most evidence comes from manufacturer and small panel studies.
Reviewed October 2026
In the UU catalog
Researched, batch-tested, ready to ship.
Compounds UU carries that have a full research summary in the library.
56 compounds · At UU
Brain, mood & sleep8
Peptides studied for cognition, stress response, sleep architecture and the nervous system.
Skin & hair5
Copper peptides, melanocortins and the signal peptides used in skin research and cosmetics.
- ApprovedAt UU
Afamelanotide
Melanotan I · Scenesse
Melanocortin agonist
A stabilised analogue of alpha-MSH. Approved as an implant for erythropoietic protoporphyria, a rare light-sensitivity disorder.
Human trialsShop - ResearchAt UU
Glutathione
L-glutathione · GSH
Antioxidant tripeptide
The main antioxidant tripeptide inside human cells. Studied in redox biology, liver research and skin pigmentation.
Early human dataShop
Gut & weight13
Incretins, amylin analogues and gut peptides studied for appetite, glucose and body weight.
- In trialsAt UU
Cagrilintide
Long-acting amylin analogue
A weekly amylin analogue in clinical trials, alone and combined with semaglutide, for weight reduction.
Human trialsShop - ApprovedAt UU
Semaglutide
Ozempic · Wegovy
GLP-1 receptor agonist
A long-acting GLP-1 analogue approved for type 2 diabetes and chronic weight management, in weekly injected and daily oral forms.
Human trialsShop - ApprovedAt UU
Tesamorelin
Egrifta
GHRH analogue
A growth hormone-releasing hormone analogue approved to reduce excess abdominal fat in HIV-associated lipodystrophy.
Human trialsShop - ApprovedAt UU
Tirzepatide
Mounjaro · Zepbound
GIP and GLP-1 receptor agonist
A dual incretin agonist approved for type 2 diabetes and chronic weight management.
Human trialsShop - In trialsAt UU
Retatrutide
LY3437943
GIP, GLP-1 and glucagon receptor agonist
A triple-receptor agonist in Phase 3 trials. Studied for weight reduction, type 2 diabetes and liver fat.
Early human dataShop - ResearchAt UU
5-Amino-1MQ
NNMT inhibitor
A small molecule, not a peptide, that blocks the enzyme NNMT. Studied in rodents for fat mass and muscle ageing.
PreclinicalShop - ResearchAt UU
SLU-PP-332
ERR agonist
A small molecule that activates estrogen-related receptors. Studied in mice as an exercise mimetic.
PreclinicalShop
Immune & airways9
Thymic peptides, antimicrobial peptides and complement inhibitors studied in immune research.
- ResearchAt UU
Thymosin alpha-1
Thymalfasin · Zadaxin
Thymic peptide
A 28-residue thymic peptide registered in a number of countries but not by the FDA or the EMA. Studied as an immune modulator in sepsis and viral infection.
Human trialsShop - ResearchAt UU
Bronchogen
Short bioregulator peptide
A bioregulator peptide associated with bronchial tissue in Russian research. Published evidence is limited.
Summary pendingShop
Hormones & growth8
Growth hormone secretagogues, IGF analogues and the pituitary and endocrine peptides.
- ResearchAt UU
CJC-1295 with DAC
Long-acting GHRH analogue
A GHRH analogue that binds albumin to stay in circulation for days. Studied in early human trials for sustained IGF-1 elevation.
Early human dataShop - ResearchAt UU
Ipamorelin
Ghrelin receptor agonist
A selective growth hormone secretagogue pentapeptide. Studied for growth hormone release with little effect on cortisol or prolactin.
Early human dataShop - ResearchAt UU
Sermorelin
GRF 1-29
GHRH analogue
The first 29 residues of growth hormone-releasing hormone. Once approved in the US, it was withdrawn from the market in 2008.
Early human dataShop - ResearchAt UU
CJC-1295 without DAC
Modified GRF 1-29 · Mod GRF
GHRH analogue
A stabilised version of the first 29 residues of GHRH. Studied for short pulses of growth hormone release.
Mixed evidenceShop
Muscle, bone & joint3
Peptides studied for tendon and muscle repair, bone formation and connective tissue.
Heart & blood1
Vascular peptides, anticoagulants and the mitochondrial peptides studied in cardiac research.
Sexual & reproductive6
Melanocortins, kisspeptin, oxytocin and the GnRH analogues of reproductive medicine.
- ResearchAt UU
Kisspeptin-10
Kisspeptin receptor agonist
The shortest active fragment of kisspeptin, the upstream signal for GnRH. Studied in human physiology research on reproductive hormones.
Early human dataShop
Cells & ageing3
Mitochondrial peptides, telomere research and senescence: the whole-body ageing biology.
The UU library is an educational reference. It is not medical advice, does not make a health claim, and does not tell anyone how to use a compound. UU products are sold for laboratory research use only and are not for human consumption. Regulatory status changes: confirm it with the relevant authority before relying on it.