KLOW: The KPV, BPC-157, TB-500 and GHK-Cu Research Blend
By Peptura Research Team/22 May 2026/6 min read
What KLOW Is
KLOW is a pre-blended four-peptide research vial holding KPV (10 mg), BPC-157 (10 mg), TB-500 (10 mg), and GHK-Cu (50 mg) as a single lyophilised powder for one-step reconstitution. It builds on the three-peptide GLOW blend by adding KPV, an anti-inflammatory tripeptide clipped from the C-terminal of alpha-melanocyte-stimulating hormone. The result reaches across both the regenerative axis of GLOW and the mucosal and gut-inflammation axis that KPV brings.
Peptura supplies KLOW with third-party HPLC documentation reporting purity for each component.
What KPV Adds to GLOW
GLOW combines BPC-157, TB-500, and GHK-Cu, the three peptides most commonly co-investigated in tissue-repair and matrix-remodelling research. KLOW brings in KPV (lysine-proline-valine), a tripeptide with a distinct job: suppressing nuclear factor kappa B (NF-κB) signalling and dialling down pro-inflammatory cytokine expression in research models.
KPV research has concentrated on gastrointestinal inflammation, including ulcerative colitis and chemically induced colitis, where the parent peptide α-MSH and its C-terminal fragment show anti-inflammatory activity through both melanocortin-dependent and partly melanocortin-independent routes. The KPV anti-inflammatory tripeptide research guide has the full mechanism.
Where GLOW covers connective-tissue and ECM remodelling, KLOW extends the reach into mucosal and barrier-immunity research by adding a directly anti-inflammatory tripeptide.
The Four Components
KPV (3 amino acids, lysine-proline-valine) corresponds to α-MSH(11-13) and is studied for anti-inflammatory effects through NF-κB modulation. See the KPV research guide.
BPC-157 (15 amino acids) is a synthetic pentadecapeptide studied in tissue-repair and angiogenesis research. See the BPC-157 research guide.
TB-500 (17 amino acids in the active fragment) is a synthetic peptide derived from Thymosin Beta-4, studied in cell-migration and actin-regulation research. See the BPC-157 and TB-500 research overview for context on combined repair protocols.
GHK-Cu (3 amino acids plus copper) is a copper-binding tripeptide studied in collagen synthesis and matrix remodelling. See the GHK-Cu copper peptide research guide.
Research Applications
KLOW suits models that need regenerative and anti-inflammatory mechanisms running in parallel: gut and mucosal repair models, skin and connective-tissue research where inflammatory signalling is also in play, and broad multi-pathway tissue-repair screens. Its four-peptide makeup gives overlapping mechanistic coverage rather than one isolated effect, which fits combined-pathway questions and is less suited to single-mechanism dose-response studies.
Laboratory Handling
KLOW ships as a single 80 mg lyophilised vial. Store at -20°C before reconstitution. Reconstitute with bacteriostatic water by running the diluent slowly down the inner wall of the vial and swirling gently. Never shake. Keep the reconstituted solution at 2-8°C and use within four weeks. The GHK-Cu component will tint the solution its characteristic blue, which is normal. The peptide reconstitution guide has the detailed method.
Sourcing in the UK
Peptura supplies research-grade KLOW as a pre-blended lyophilised vial with full third-party HPLC documentation reporting purity for each individual component. Same-day UK dispatch on orders placed before 2pm GMT, free Royal Mail Tracked shipping over £45. For in-vitro laboratory research use only, not for human consumption.
Disclaimer: This article is for research and educational purposes only. All information provided is not intended as medical advice. Peptura products are not for human consumption and are sold strictly for laboratory research use only.