Every one of these is a molecule
your body already makes.
We just make it measurable.
RESEARCH-GRADE PEPTIDES
Signals the body already knows how to read.
Six compounds. Documented mechanisms, honest evidence, and no claims we can’t cite.
SCROLL TO BEGIN
GLY–HIS–LYS · Cu2+
GHK-Cu 100mg
MW 403.9 · TRIPEPTIDE–COPPER COMPLEX
Copper-binding tripeptide found naturally in plasma. Stimulates collagen and elastin production, with antioxidant and anti-inflammatory effects. Used mainly in skin repair, anti-ageing and hair-growth formulations.
HUMAN DATA · TOPICAL / COSMETIC
GEPPPGKPADDAGLV
BPC-157 10mg
MW 1419.5 · 15 RESIDUES · PENTADECAPEPTIDE
Synthetic peptide derived from a protein in gastric juice. Studied for accelerating repair of tendon, ligament, muscle and gut tissue by promoting new blood vessel formation. Evidence is animal-based; no completed human trials.
ANIMAL DATA ONLY · NO HUMAN TRIALS
LKKTETQ
TB-500 10mg
MW 889.0 · THYMOSIN β4 ACTIVE FRAGMENT
Synthetic fragment of thymosin beta-4, a cell-migration protein. Associated with tissue repair, reduced inflammation and improved flexibility. Often paired with BPC-157 for recovery; again, animal and veterinary data only.
ANIMAL & VETERINARY DATA ONLY
LY3437943
Retatrutide 10mg
MW 4731 · GLP-1 / GIP / GLUCAGON TRIAGONIST
Eli Lilly’s triple GLP-1/GIP/glucagon receptor agonist for obesity and type 2 diabetes. Suppresses appetite while also raising energy expenditure, producing around 24% average weight loss at 48 weeks in a Phase 2 trial. Still investigational, and not approved anywhere.
INVESTIGATIONAL · NOT APPROVED IN ANY JURISDICTION
trans-3-HEXENOYL-hGRF(1–44)-NH2
Tesamorelin 10mg
MW 5135.9 · 44 RESIDUES · GHRH ANALOGUE
Synthetic analogue of human growth-hormone-releasing hormone, stabilised against the enzyme that clears the native peptide within minutes. Approved in the United States for HIV-associated lipodystrophy — the only compound listed here that any regulator has licensed.
APPROVED MEDICINE · ONE INDICATION
MRWQEMGYIFYPRKLR
MOTS-c 40mg
MW 2174.6 · 16 RESIDUES · MITOCHONDRIAL-DERIVED PEPTIDE
Sixteen-residue peptide encoded inside the mitochondrial 12S rRNA gene rather than the nuclear genome. Studied as a regulator of metabolic homeostasis through AMPK activation. Interventional evidence is rodent; the human work is observational.
ANIMAL DATA · EARLY HUMAN OBSERVATION
What this site is, and what it isn’t.
Scope
Quadra Biotech supplies reference materials to laboratories, universities and contract research organisations. Everything listed here is sold for in vitro and non-human research use. Nothing on this site is offered for human or veterinary consumption, and nothing here is medical advice.
Evidence
Each compound carries its evidence status in the same viewport as its name: human, animal, veterinary, or investigational. Where the literature is thin, we say so. Where a mechanism is described, it is cited to a primary source you can read yourself.
Limits
We publish no dosing, no administration routes and no protocols. Storage and reconstitution conditions only. Five of the six compounds listed are unapproved by regulators in every jurisdiction, and the sixth is approved for one indication only; approval status is stated on every product.
- GHK-CuHuman data · topical / cosmetic
- BPC-157Animal data only · no completed human trials
- TB-500Animal & veterinary data only
- RetatrutideInvestigational · Phase 2 human trials published, not approved
- TesamorelinApproved medicine · one indication, one population
- MOTS-cAnimal data · human work is observational only
Quadra Biotech makes no therapeutic claims. The descriptions on this site summarise published research and are not statements of efficacy or safety in humans. Checkout is disabled pending confirmation of jurisdictional supply restrictions.
