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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.
53 compounds
Brain, mood & sleep9
Peptides studied for cognition, stress response, sleep architecture and the nervous system.
- Research
Cerebrolysin
Porcine brain peptide mixture
A mixture of low-molecular-weight peptides from pig brain, registered in several European and Asian countries but not by the FDA or the EMA. Studied after stroke and brain injury.
Summary pending
Skin & hair2
Copper peptides, melanocortins and the signal peptides used in skin research and cosmetics.
- 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 - Research
Melanotan II
MT-II
Melanocortin agonist
A cyclic, non-selective melanocortin agonist never approved as a medicine. Studied for pigmentation, and the parent compound of bremelanotide.
Summary pending
Gut & weight9
Incretins, amylin analogues and gut peptides studied for appetite, glucose and body weight.
- 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 - Research
HGH fragment 176-191
Growth hormone fragment
The unmodified C-terminal region of growth hormone that AOD-9604 is based on. Studied in animal models of fat metabolism.
Summary pending
Immune & airways10
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 - Research
Thymulin
Zinc-dependent thymic hormone
A zinc-binding nonapeptide made by the thymus. Studied in animal models of inflammation and pain.
Summary pending
Hormones & growth11
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 - Research
Humanin
Mitochondrial-derived peptide
A 24-residue peptide encoded in mitochondrial DNA. Studied in cell and animal models of ageing and neuroprotection.
Summary pending - Research
IGF-1 DES
DES(1-3) IGF-I
IGF-1 variant
A naturally occurring truncated IGF-1 with weak binding-protein affinity. Studied in cell and animal research.
Summary pending - Research
MK-677
Ibutamoren
Oral ghrelin receptor agonist
An oral small molecule that mimics ghrelin. Studied in trials for growth hormone and IGF-1 levels, never approved.
Summary pending
Muscle, bone & joint5
Peptides studied for tendon and muscle repair, bone formation and connective tissue.
- Research
Follistatin 344
Myostatin-binding protein
A recombinant form of follistatin, which binds and blocks myostatin. Studied in gene therapy and animal muscle research.
Summary pending - Research
Mechano growth factor
MGF · IGF-1Ec
IGF-1 splice variant peptide
A peptide from the E domain of an IGF-1 splice variant produced in loaded muscle. Studied in cell and animal models.
Summary pending
Sexual & reproductive4
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.