Gold Tier
A research-use-only four-peptide blend — BPC-157, TB-500, KPV, and GHK-Cu — combining tissue-repair and inflammation-research tools in a single vial.
≥99% Pure | 5X Tested | PhD-Formulated | GMP/ISO-Aligned
Research Use Only (RUO). Not for human or veterinary use.
In stock
Original price was: $170.00.$164.00Current price is: $164.00.
Klow is a research-use-only combination formulated for studies of tissue remodeling and protein function. Components include BPC-157 (15-mer), TB-500 (Thymosin β4, 43 aa), KPV (α-MSH 11–13 tripeptide), and GHK-Cu (copper-bound GHK). Investigations examine British Dragon pharmaceuticals, cell-matrix signaling, inflammation-related signaling readouts, and redox balance under controlled conditions. Not intended for diagnostic or therapeutic use.
This product is supplied for laboratory research use only (RUO) and is intended solely for qualified professionals in a controlled research setting. It is not a drug, food, dietary supplement, cosmetic, or medical device, and is not intended for human or veterinary use or for any diagnostic, therapeutic, or clinical application. It is not for household use.
No statement on this page has been evaluated by the U.S. Food and Drug Administration. Nothing herein is intended to diagnose, treat, cure, or prevent any disease, nor to suggest any dosage, route, or method of administration. Britishdragon quality advantage makes no representation or warranty, express or implied, regarding fitness for any purpose other than research and provides no medical or professional advice. The purchaser and end user assume full responsibility for safe handling, storage, and use in accordance with all applicable laws, regulations, and institutional safety protocols, and accept all associated risk and liability.
See our Terms & Conditions and our Research Compliance Disclaimers for complete terms.
These peptides are used to explore how proteins fold, interact, and support cellular structure. Studies focus on ECM architecture, protein turnover, and structural stress responses in pre-clinical models.
Exciting Areas of Study
| General | |
| Components | BPC-157 | TB-500 | KPV | GHK-Cu |
|---|---|
| Component A — BPC-157 | |
| Sequence | GEPPPGKPADDAGLV |
| Molecular Formula | C62H98N16O22 |
| Molecular Weight | ≈1419.5 g/mol |
| CAS Number | 137525-51-0 |
| Component B — TB-500 (Thymosin β4) | |
| Sequence | 43 aa peptide (Thymosin β4) |
| Molecular Formula | C212H350N56O78S |
| Molecular Weight | ≈4963.5 g/mol |
| CAS Number | 77591-33-4 |
| Component C — KPV (α-MSH 11–13) | |
| Sequence | Lys–Pro–Val |
| Molecular Formula | C16H30N4O4 |
| Molecular Weight | ≈342.43 g/mol |
| CAS Number | 67727-97-3 |
| Component D — GHK-Cu (Copper-bound GHK) | |
| Sequence | Gly–His–Lys · Cu(II) |
| Molecular Formula | C14H22CuN6O4 |
| Molecular Weight | ≈401.91 g/mol |
| CAS Number | 89030-95-5 |
| Formulation & Handling | |
| Appearance | White to off-white lyophilized powder |
| Solubility | Soluble in sterile water or bacteriostatic water |
| Purity | ≥99% per component (HPLC) |
| Storage Guidelines | • Lyophilized: ≤0°F (–18°C), dry, protected from light • Reconstituted: 36–46°F (2–8°C); avoid repeat freeze–thaw • Long-term: Keep dry and frozen until use |
Knowledge Hub
Guides and reference material related to Klow.
Handling / Storage
Essential laboratory guidelines for reconstituting lyophilized peptides: selecting diluents, minimizing shear stress during fluid introduction, temperature cycling parameters, and optimal freeze-thaw mitigation.
Read guide: Peptide Reconstitution & Storage: Preserving Lyophilized Cake StabilityTesting / COA Education
A practical guide to interpreting analytical test reports: deciphering RP-HPLC chromatograms, understanding baseline integration, verifying electrospray ionization (ESI-MS) molecular mass, and evaluating third-party lab verification.
Read guide: Reading Lab Certificates of Analysis (COA): HPLC Traces & Mass Spectrometry
Testing / COA Education
A practical guide to interpreting analytical test reports: deciphering RP-HPLC chromatograms, understanding baseline integration, verifying electrospray ionization (ESI-MS) molecular mass, and evaluating third-party lab verification.
Read guide: Reading Lab Certificates of Analysis (COA): HPLC Traces & Mass SpectrometryHandling / Storage
Essential laboratory guidelines for reconstituting lyophilized peptides: selecting diluents, minimizing shear stress during fluid introduction, temperature cycling parameters, and optimal freeze-thaw mitigation.
Read guide: Peptide Reconstitution & Storage: Preserving Lyophilized Cake StabilityComparison
Examining the multi-modal angiogenic and cellular migration dynamics when pairing stable gastric pentadecapeptide BPC-157 with actin-sequestering peptide TB-500 in tissue culture and connective tissue assays.
Read guide: Wolverine 20: BPC-157 & TB-500 Synergistic Tissue Repair PathwaysCompound Guide
A comprehensive analysis of the 16-amino-acid mitochondrial-derived peptide MOTS-c, detailing AMPK activation, nuclear translocation under metabolic stress, and mitochondrial-nuclear communication in cell culture.
Read guide: MOTS-c: Mitochondrial Biology & Cellular Energy Regulation in Preclinical ModelsCompound Guide
An in-depth biochemical review of Retatrutide (LY3437943), examining its multi-target agonist activity at GLP-1, GIP, and glucagon receptors, downstream cAMP accumulation, and energetic homeostasis in laboratory research models.
Read guide: Retatrutide (GLP-1 / GIP / Glucagon Tri-Agonist): Molecular Mechanisms & Preclinical Findings
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