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All peptides A–Z
Every peptide we cover, with its status in Canada and a four-bar evidence meter.
AOD-9604A fragment of human growth hormone developed as an anti-obesity pill. Its larger Phase 2b trial failed and obesity…Not authorized in Canada
Argireline and Other Cosmetic PeptidesArgireline (acetyl hexapeptide-8) is a cosmetic peptide marketed for expression lines. Studies are small and usually…Cosmetic / food ingredient
BPC-157The most-searched "healing peptide". Animal studies are plentiful, but a 2026 systematic review found only 3 tiny human…Not authorized in Canada
CerebrolysinA mixture of peptides from pig brain used in several countries for stroke. A 2023 Cochrane review found it probably…Not authorized in Canada (approved elsewhere)
CJC-1295A long-acting analog of growth hormone-releasing hormone (GHRH). Small human studies exist; it was never approved.…Not authorized in Canada
Collagen PeptidesHydrolyzed collagen powders and capsules taken by mouth. Meta-analyses find modest improvements in skin hydration and…Sold legally as food / natural health product
DihexaAn angiotensin IV analog developed in a university lab for Alzheimer's and Parkinson's research. Animal data only; we…Not authorized in Canada
DSIP (Delta Sleep-Inducing Peptide)Isolated from rabbit blood in 1977 and named for sleep, but a 2006 review called the sleep link "extremely poorly…Not authorized in Canada
Epitalon (Epithalon)A 4-amino-acid peptide based on a pineal gland extract, promoted for "telomere" anti-ageing. Research comes largely…Not authorized in Canada
GHK-Cu and Copper PeptidesA natural copper-binding tripeptide used in skin and hair-care products. As a cosmetic cream it's an ordinary…Topical cosmetic: sold legally · Injectable: not authorized
GHRP-2 and GHRP-6Synthetic growth hormone-releasing peptides whose study led to the discovery of the natural hormone ghrelin. Not…Not authorized in Canada
HexarelinA potent GH-releasing peptide. In a 16-week human study its effect faded with continued use and body composition didn't…Not authorized in Canada
HGH Fragment 176-191A piece of the growth hormone molecule marketed for fat loss. It is closely related to AOD-9604, whose obesity trial…Not authorized in Canada
HumaninA mitochondrial-derived peptide studied in ageing research. Human studies measure natural blood levels; we found no…Not authorized in Canada
InsulinInsulin is the best-known peptide hormone, discovered and first used as a treatment in Toronto in 1921–22. It is an…Authorized in Canada (prescription)
IpamorelinA growth hormone-releasing peptide described in 1998 as the first selective GH secretagogue. Never approved; Health…Not authorized in Canada
KisspeptinA natural hormone that switches on the reproductive axis. Researchers have tested it as an IVF trigger in small trials.…Not authorized in Canada
KPVA 3-amino-acid fragment of alpha-MSH studied for gut inflammation in cells and mice. We found no human trials. Health…Not authorized in Canada
LiraglutideAn older, once-daily GLP-1 receptor agonist. Victoza (type 2 diabetes) and Saxenda (weight management) are authorized…Authorized in Canada (prescription)
LL-37The human cathelicidin antimicrobial peptide. As a topical treatment for leg ulcers, a small first trial looked…Not authorized in Canada
Matrixyl (Palmitoyl Pentapeptide-4)A cosmetic signal peptide designed for creams and serums. One 12-week split-face trial found modest wrinkle…Cosmetic / food ingredient
Melanotan I and II"Tanning peptides" sold online. Health Canada lists melanotan I and II among seized unauthorized injectables. A…Not authorized in Canada
MK-677 (Ibutamoren)MK-677 is often lumped in with peptides, but it is an oral non-peptide drug that acts on the ghrelin receptor. A…Not authorized in Canada
MOTS-cA 16-amino-acid peptide encoded in mitochondrial DNA, studied for metabolism. A 2023 review says no effective clinical…Not authorized in Canada
OxytocinA peptide hormone authorized in Canada as an injection used in labour and delivery. Intranasal oxytocin for social or…Authorized in Canada (prescription)
PT-141 (Bremelanotide)A melanocortin-receptor drug approved by the FDA in 2019 as Vyleesi for low sexual desire in premenopausal women. We…Not authorized in Canada (approved elsewhere)
RetatrutideAn investigational triple-hormone (GIP, GLP-1, glucagon) receptor agonist from Eli Lilly. It is not approved anywhere,…Not authorized in Canada
SelankA Russian-developed nasal peptide studied for anxiety, mainly as an add-on to a benzodiazepine. Not authorized in…Not authorized in Canada
SemaglutideA GLP-1 receptor agonist peptide drug for type 2 diabetes and chronic weight management. In Canada it is a prescription…Authorized in Canada (prescription)
SemaxA synthetic fragment of the hormone ACTH used as a nasal medicine in Russia, mainly after stroke. Evidence for…Not authorized in Canada
SermorelinA shortened form of natural GHRH, reviewed in 1999 for use in children with growth hormone deficiency. We found no…Not authorized in Canada
SS-31 (Elamipretide)A mitochondria-targeting peptide that received FDA accelerated approval in September 2025 for Barth syndrome, an…Not authorized in Canada (approved elsewhere)
TB-500 and Thymosin Beta-4TB-500 is a synthetic fragment of thymosin beta-4, a natural repair-related peptide. Eye-drop forms of Tβ4 have been in…Not authorized in Canada
TesamorelinA GHRH analog studied and approved for excess abdominal fat in people with HIV-associated lipodystrophy. Its Canadian…Not currently marketed in Canada
Thymosin Alpha-1An immune-modulating peptide (thymalfasin) studied in infections, cancer and COVID-19. Meta-analyses disagree on…Not authorized in Canada (approved elsewhere)
TirzepatideA dual GIP/GLP-1 receptor agonist. Health Canada has authorized Mounjaro for type 2 diabetes and Zepbound for chronic…Authorized in Canada (prescription)