Direct Peptides
Specialized British and European supplier offering an extensive catalog of automated solid-phase synthesis peptides, synergistic multi-compound research complexes, and calibrated spray matrices.
- Batch-specific HPLC analytical chromatograms available on demand with every lot
- ESI-MS verification confirming exact monoisotopic mass and amino acid composition
- Reference analytical standard purity testing consistently exceeding ≥99.0%
- Accelerated degradation monitoring across simulated thermal transit corridors
Vacuum-sealed lyophilized vials in custom protective closed-cell foam inserts with moisture-barrier outer casing.
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Official Research Categories at Direct Peptides
Reagents Verified with Direct Peptides (9)
BPC-157
Body Protection Compound-157 Pentadecapeptide
BPC-157 is a stable 15-amino acid synthetic pentadecapeptide fragment originally derived from human gastric juice protein BPC. Evaluated in UK academic and biotechnology laboratories as an analytical benchmark for focal adhesion kinase (FAK) activation and endothelial tube formation assays.
TB-500
Thymosin Beta-4 Active Hexapeptide Domain (Ac-LKKTET-OH)
TB-500 represents the synthetic active fragment of Thymosin Beta-4, a major physiological actin-sequestering protein. Studied in British biomedical research for its ability to regulate G-actin polymerization, promote keratinocyte migration, and downregulate myofibroblast differentiation.
GHK-Cu
Copper Tripeptide-1 Complex (Gly-His-Lys:Cu2+)
GHK-Cu is a naturally occurring tripeptide-copper coordinate complex identified in human plasma. Investigated in UK cosmetic chemistry and cellular biology laboratories for its regulation of matrix metalloproteinases, decorin, and collagen I/III biosynthesis.
CJC-1295
Modified Growth Hormone-Releasing Hormone (Mod GRF 1-29 / CJC-1295 No DAC)
CJC-1295 (Mod GRF 1-29) is a synthetic 29-amino-acid analogue of human growth hormone-releasing factor featuring four D-amino acid substitutions to enhance metabolic stability against dipeptidyl peptidase-4 (DPP-4). Evaluated in UK endocrine research for pulsatile somatotroph signaling.
Ipamorelin
Aib-His-D-2-Nal-D-Phe-Lys-NH2 Pentapeptide
Ipamorelin is a synthetic pentapeptide and selective ghrelin receptor (GHSR-1a) agonist. Distinct from earlier GHRPs due to its selectivity: it stimulates somatotroph growth hormone release in vitro without triggering substantial elevation in cortisol, prolactin, or ACTH.
AOD-9604
Human Growth Hormone C-Terminal Fragment (Tyr-hGH177-191)
AOD-9604 is a synthetic hexadecapeptide analog representing the lipolytic C-terminal domain of human growth hormone (hGH 177-191) with an added tyrosine residue. Investigated in UK metabolic and adipose tissue laboratories for beta-3 adrenergic receptor signaling without diabetogenic IGF-1 elevation.
Epithalon
Synthetic Pineal Tetrapeptide (Ala-Glu-Asp-Gly)
Epithalon (Epitalon) is a synthetic tetrapeptide modeled on the endogenous pineal extract epithalamin. Studied extensively in biogerontology laboratories for its ability to overcome the Hayflick limit via telomerase catalytic subunit (hTERT) transcription and chromatin remodeling.
MOTS-c
Mitochondrial Open Reading Frame of the 12S rRNA-c (16-AA Peptide)
MOTS-c is a 16-amino acid mitochondrial-derived peptide encoded within the mitochondrial 12S rRNA locus. Investigated in metabolic biology laboratories for its regulation of the folate-methionine cycle, direct activation of AMPK, and restoration of metabolic plasticity.
Tirzepatide
Dual GIP and GLP-1 Receptor Co-Agonist 39-AA Synthetic Peptide
Tirzepatide is a synthetic 39-amino-acid unimolecular dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor co-agonist conjugated to a C20 fatty diacid moiety. Studied extensively in UK biochemical and pharmaceutical research for receptor affinity dynamics.