Klow is a four-peptide research blend in one 80mg vial: GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg and KPV 10mg.

How is Klow different from Glow?

Klow adds KPV to the three peptides in Glow. KPV is a tripeptide fragment of alpha-MSH studied for anti-inflammatory signalling.

The copper in GHK-Cu gives the powder and the reconstituted solution their blue color.

Every batch goes to an independent lab. The current batch was tested across three vials for purity (RP-HPLC), identity (LC-MS), net peptide content, endotoxins, heavy metals and sterility. Each batch's certificate of analysis is published on the lab results page.

How should Klow be stored?

Keep the sealed vial in the refrigerator at 36–46°F (2–8°C), dry and away from light. As a freeze-dried powder it tolerates room temperature for weeks, which is why it ships without ice. Once reconstituted, keep it refrigerated between uses. More in our guide, Do peptides need to be refrigerated?

How much Klow is in a vial?

Klow comes as a blue lyophilized powder blend in a 80mg vial.

Is Klow for human use?

No. Klow is sold for laboratory research use only.

80mg · 99%+ Purity

Klow Peptide Blend

Klow is a four-peptide research blend combining GHK-Cu (50 mg), BPC-157 (10 mg), TB-500 (10 mg), and KPV (10 mg). The formulation extends the tissue-remodeling rationale of GHK-Cu, BPC-157, and TB-500 by adding KPV, an α-MSH-derived tripeptide.

$110.00

COA Tested 99%+ Purity Research Grade

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99.647% purity View COA

Certificate of Analysis

Klow Peptide Blend 80mg · 3 vials tested by an independent lab · RP-HPLC / LC-MS

Batch 2026-KW189

Latest

99.647%

Average purity

Labeled content: 80mg
Net content: 87.35mg (+9%)
Vials tested: 3
Endotoxins: Pass
Heavy metals: Pass
Microbial sterility: Pass
Method: RP-HPLC / LC-MS
Tested: Jul 17, 2026

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Batch KW126

99.74%

Average purity

Labeled content: 10mg
Net content: 80.61mg (+706%)
Vials tested: 1
Endotoxins: Pass
Method: HPLC
Tested: Mar 20, 2026

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Compound Information

Chemical and structural properties

What it is

What is Klow Peptide Blend?

Class: Four-peptide research blend
Also known as: GHK-Cu + BPC-157 + TB-500 + KPV
Form: Blue lyophilized powder blend
Use: Research use only

Molecular profile

Compound Structure

CAS number: 89030-95-5 / 137525-51-0 / 77591-33-4 / 67727-97-3
Molecular formula: GHK-Cu: C14H21CuN6O4
BPC-157: C62H98N16O22
TB-500 / Thymosin Beta-4: C210H348N56O77S
KPV: C16H30N4O4
Molecular weight: GHK-Cu: 400.9 g/mol
BPC-157: 1419.5 g/mol
TB-500 / Thymosin Beta-4: 4921.5 g/mol
KPV: 342.43 g/mol
Sequence: GHK-Cu: Gly-His-Lys
BPC-157: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
TB-500 / Thymosin Beta-4: Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser
KPV: Lys-Pro-Val

Storage

Storage & Stability

Store cold
Protect from light
Keep dry

Lyophilized (powder) 2–8°C (36–46°F) Refrigerate · −20°C for long-term storage

Reconstituted 2–8°C (36–46°F) Refrigerate · use within 28 days

Solubility: Soluble in bacteriostatic water

Klow Peptide Blend Overview

Four peptides in one 80mg vial: GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg and KPV 10mg.

Technical overview

Klow builds on the Glow formula by adding KPV, a three-amino-acid fragment of alpha-MSH studied for anti-inflammatory activity. The four peptides are supplied together as one lyophilized powder, blue from the copper in GHK-Cu.

Research applications

Klow is used to study repair and inflammation together: tissue remodelling (GHK-Cu), healing (BPC-157 and TB-500) and inflammatory signalling (KPV) in a single model.

FAQs

What is in Klow?

Klow is a four-peptide research blend in one 80mg vial: GHK-Cu 50mg, BPC-157 10mg, TB-500 10mg and KPV 10mg.
How is Klow different from Glow?

Klow adds KPV to the three peptides in Glow. KPV is a tripeptide fragment of alpha-MSH studied for anti-inflammatory signalling.
Why is Klow blue?

The copper in GHK-Cu gives the powder and the reconstituted solution their blue color.
How is Klow tested?

Every batch goes to an independent lab. The current batch was tested across three vials for purity (RP-HPLC), identity (LC-MS), net peptide content, endotoxins, heavy metals and sterility. Each batch's certificate of analysis is published on the lab results page.
How should Klow be stored?

Keep the sealed vial in the refrigerator at 36–46°F (2–8°C), dry and away from light. As a freeze-dried powder it tolerates room temperature for weeks, which is why it ships without ice. Once reconstituted, keep it refrigerated between uses. More in our guide, Do peptides need to be refrigerated?
How much Klow is in a vial?

Klow comes as a blue lyophilized powder blend in a 80mg vial.
Is Klow for human use?

No. Klow is sold for laboratory research use only.