Lot #260528KS503

Price range: $90.00 through $229.50
$80.00

KLOW [80mg]

50mg / 10mg / 10mg / 10mg per vial

Quad peptide blend

≥99% HPLC

4.9 / 5

Trusted by 5,000+ researchers

30-day money back

2-day shipping

Signed COA on every batch

Secure checkout

Price range: $90.00 through $229.50
$80.00

COA on Every Batch

BioRegen Verified

≥99% HPLC Purity

Made in the USA

2-Day Shipping

30-Day Money Back

Four compounds. One vial. Full traceability.

Each blend vial ships with structural data and lot identifiers for all four peptides, plus a single Certificate of Analysis documenting per-component purity and the blended composition. Pre-mixed for the bench. All peptides are synthesized via solid-phase peptide synthesis (SPPS), purified independently by reverse-phase HPLC, and combined in a single vial at a verified ratio. Mass spectrometry confirms identity for each component, and sterility plus endotoxin testing applies to the final blend.

— Component 01

GHK-Cu · 50mg

Class

Copper-binding tripeptide / Copper chelate (Cu²⁺)

Sequence

Gly-His-Lys + Cu²⁺

CAS Number

49557-75-7

Molecular Formula

C₁₄H₂₄CuN₆O₄

Molecular Weight

403.9 g/mol

Per-component purity

≥ 99%

— Component 02

BPC-157 · 10mg

Class

Synthetic pentadecapeptide / Gastric cytoprotective fragment

Sequence

Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val

CAS Number

137525-51-0

Molecular Formula

C₆₂H₉₈N₁₆O₂₂

Molecular Weight

1,419.55 g/mol

Per-component purity

≥ 99%

— Blend

BPC-157 + TB-500 + GHK-Cu + KPV Blend (KLOW)

Total content

80mg total · GHK-Cu 50mg + BPC-157 10mg + TB-500 10mg + KPV 10mg

Form

Light blue lyophilized powder (GHK-Cu copper chelate)

Identity (LC-MS)

PASS · all four components confirmed

Sterility / LAL

PASS

Storage

Store at 2-8°C, protect from light

Origin

USA — synthesized and tested in US-based facility

Four compounds, four research records.

BPC-157 is a 15-amino-acid sequence isolated from a partial fragment of a protein found in human gastric juice. In academic literature it is referred to as Body Protection Compound 157. Most cited research originates from the Sikiric group at the University of Zagreb. Documented preclinical investigation spans soft-tissue signaling, gastric mucosal integrity, vascular pathways, and the nitric oxide system.

TB-500 is a synthetic peptide based on the active region of thymosin β4 (Tβ4), a naturally occurring 43-amino-acid protein first isolated from the thymus gland. Tβ4 is one of the most-studied actin-sequestering proteins in the human body. Documented preclinical investigation spans tissue regeneration, cardiac repair models, ocular surface healing, and inflammatory regulation.

Both compounds are most-cited alongside investigations of angiogenesis, actin cytoskeletal remodeling, and tissue regeneration pathways in animal models. Neither has been approved by the FDA for any therapeutic indication. Both remain classified as research compounds.

For research use only. Statements above describe published research literature and do not constitute health, medical, or therapeutic claims for either compound or for the blend. Not for human or veterinary use. Not evaluated by the FDA.

Documented Research Areas

GHK-Cu:Fibroblast activity and ECM research

GHK-Cu:Collagen / elastin synthesis and antioxidant pathways

BPC-157:Soft-tissue and tendon repair signaling

BPC-157:Angiogenesis and VEGF expression pathways

KPV:NF-κB and MAP-kinase inflammatory signaling research

KPV:PepT1-mediated cellular uptake and IBD models

TB-500 / Tβ4:Actin cytoskeletal regulation and tissue regeneration

A curated list of published peer-reviewed papers indexed in PubMed where BPC-157 has been studied. Provided for research-context only. Linking to the literature does not constitute endorsement of any therapeutic application.

Chang CH, et al. · J Orthop Surg Res

The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration

PubMed · PubMed · 24920898

Dalmasso G, et al. · PLOS ONE

The Tripeptide KPV Has Anti-Inflammatory Effects in Intestinal Epithelial Cells by Inhibiting IKK and NF-kB Activation

PubMed · PubMed · 18852898

Compound database reference for chemical and structural data:

Every lot. Every researcher. Same proof.

Each batch ships with a third-party Certificate of Analysis from BioRegen Analytical. HPLC purity, mass-spectrometry identity, sterility, and LAL endotoxin screening. Every test, every lot.

Your lot number ships on the label and on the COA. Enter it in the verifier any time to retrieve the original lab report.

Verify Batch COA

Certificate of Analysis

CompoundKLOW Blend

CAS#49557-75-7

FormulaC₁₄H₂₄CuN₆O₄

Mol. Weight403.9 g/mol

Identity (LC-MS)PASS

Purity (HPLC)99.74%

Sterility / LALPASS

Date Tested19 Jun 2026

Related compounds.

Other research peptides in the Elixser catalog cited alongside the BPC-157 + TB-500 blend in the published research literature.

PT-141 [10mg]

10mg / single compound

Research use only · Not for human or veterinary use

Price range: $35.00 through $89.25
Price range: $35.00 through $80.00

IPAMORELIN [10mg]

10mg / single compound

Research use only · Not for human or veterinary use

Price range: $32.50 through $82.88
Price range: $32.50 through $80.00

SEMAX [10mg]

10mg / single compound

Research use only · Not for human or veterinary use

Price range: $35.00 through $89.25
Price range: $35.00 through $80.00

Answered straight.

Both compounds are tested independently by reverse-phase HPLC and certified at ≥99% per-component purity before blending. The Certificate of Analysis lists the exact lot purity for each peptide separately (most lots run between 99.2% and 99.8%). Mass spectrometry confirms identity for both, and final-blend sterility plus endotoxin testing applies to the combined vial. Your COA ships with the vial and is also retrievable by lot number through our online verifier.
One sealed vial containing 50mg GHK-Cu + 10mg BPC-157 + 10mg KPV + 10mg TB-500 as a combined light blue powder (the GHK-Cu copper complex tints the blend). Lot-stamped label with both compound identifiers. Signed Certificate of Analysis covering per-component purity and the blended composition. Tamper-evident packaging. Bacteriostatic water for reconstitution research is sold separately and can be added in the cart.

Add the KLOW [80mg] blend to your research arsenal.

5,000+ researchers trust Elixser for batch-tested peptides. Every vial. Every COA. Every time.

30-day money back · Free shipping over $150 · 2-day shipping

Signed COA on every batch

Lot #260528KS503

$90.00 – $229.50Price range: $90.00 through $229.50$80.00

KLOW [80mg]

50mg / 10mg / 10mg / 10mg per vial

Quad peptide blend

≥99% HPLC

4.9 / 5

Trusted by 5,000+ researchers

30-day money back

2-day shipping

Signed COA on every batch

Secure checkout

$90.00 – $229.50Price range: $90.00 through $229.50$80.00

COA on Every Batch

BioRegen Verified

≥99% HPLC Purity

Made in the USA

2-Day Shipping

30-Day Money Back

Four compounds. One vial. Full traceability.

Four compounds, four research records.

For research use only. Statements above describe published research literature and do not constitute health, medical, or therapeutic claims for either compound or for the blend. Not for human or veterinary use. Not evaluated by the FDA.

Documented Research Areas

A curated list of published peer-reviewed papers indexed in PubMed where BPC-157 has been studied. Provided for research-context only. Linking to the literature does not constitute endorsement of any therapeutic application.

Compound database reference for chemical and structural data:

Every lot. Every researcher. Same proof.

Each batch ships with a third-party Certificate of Analysis from BioRegen Analytical. HPLC purity, mass-spectrometry identity, sterility, and LAL endotoxin screening. Every test, every lot.

Your lot number ships on the label and on the COA. Enter it in the verifier any time to retrieve the original lab report.

Certificate of Analysis

CompoundKLOW Blend CAS#49557-75-7 FormulaC₁₄H₂₄CuN₆O₄ Mol. Weight403.9 g/mol Identity (LC-MS)PASS Purity (HPLC)99.74% Sterility / LALPASS Date Tested19 Jun 2026

Related compounds.

Other research peptides in the Elixser catalog cited alongside the BPC-157 + TB-500 blend in the published research literature.

PT-141 [10mg]

$35.00 – $89.25Price range: $35.00 through $89.25$35.00 – $80.00Price range: $35.00 through $80.00

IPAMORELIN [10mg]

$32.50 – $82.88Price range: $32.50 through $82.88$32.50 – $80.00Price range: $32.50 through $80.00

SEMAX [10mg]

$35.00 – $89.25Price range: $35.00 through $89.25$35.00 – $80.00Price range: $35.00 through $80.00

Answered straight.

What is the purity of each compound?

Who tests it, and how do I know the results are real?

Where is it manufactured?

How is it shipped?

What's your return policy?

What's included with each vial?

How should it be stored?

Can this be used on humans or animals?

Add the KLOW [80mg] blend to your research arsenal.

5,000+ researchers trust Elixser for batch-tested peptides. Every vial. Every COA. Every time.

Price range: $90.00 through $229.50
$80.00

Price range: $90.00 through $229.50
$80.00

CompoundKLOW Blend

CAS#49557-75-7

FormulaC₁₄H₂₄CuN₆O₄

Mol. Weight403.9 g/mol

Identity (LC-MS)PASS

Purity (HPLC)99.74%

Sterility / LALPASS

Date Tested19 Jun 2026

Price range: $35.00 through $89.25
Price range: $35.00 through $80.00

Price range: $32.50 through $82.88
Price range: $32.50 through $80.00

Price range: $35.00 through $89.25
Price range: $35.00 through $80.00