KLOW Peptide Vials
Research blend: BPC-157, GHK-Cu, TB-500 and KPV co-lyophilised in one vial · boxes of 10 vials
Free delivery worldwide on orders over $1,000 (about £749)
Strength 1 option · price per box
Latest third-party test: 99.67%Purity (HPLC) · BPC-157 10 mg + GHK-Cu 50 mg + TB-500 10 mg + KPV 10 mg · tested 16 Sep 2026
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- No minimumBoxes of 10 vials
- Tracked shippingDispatched in 1–2 working days
- Batch COAFree on request
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Often ordered together
One box of each. Change strengths or quantities in the cart.
Also ordered with KLOW
About KLOW
What is KLOW?
Overview
What is KLOW?
KLOW is a four-peptide research preparation: the GLOW combination of BPC-157, GHK-Cu and TB-500 with KPV added. The name is an informal market term - the K is the KPV addition. It is not a registered product or an approved formulation. Supplied as a lyophilised powder in sealed vials, boxed in tens, for laboratory research use only. We list what each component is studied for and say plainly where the evidence stops. A supplier claiming these blends work synergistically is describing an expectation, not a finding.
KLOW at a glance
| Compound | KLOW |
|---|---|
| Also known as | KLOW blend, KLOW peptide blend, GLOW plus KPV, KLOW stack |
| Classification | Research blend: BPC-157, GHK-Cu, TB-500 and KPV co-lyophilised in one vial |
| Purity | 99%+ by HPLC |
| Physical form | Lyophilised powder |
| Available strengths | BPC-157 10 mg + GHK-Cu 50 mg + TB-500 10 mg + KPV 10 mg |
| Box quantity | 10 vials |
| Price from | $19.00 per vial ($190.00 per box) |
| Research status | GHK-Cu carries human skin data; KPV, BPC-157 and TB-500 are preclinical, with KPV the best characterised of those three through rodent colitis models. The four together have not been studied - no published trial has tested this combination, or any subset of it. Not approved as a formulation anywhere, and BPC-157 and TB-500 are prohibited in competitive sport under WADA S0. |
| Documentation | Batch-specific third-party COA |
These are catalogue target specifications, not batch results. The 99%+ purity figure is the specification we buy to. The authoritative figures for any particular box are the ones printed on that box’s Certificate of Analysis, which is lot-specific. What research grade actually means explains the difference. Terms such as HPLC purity and net peptide content are explained in the peptide glossary.
We make no “third-party verified” claim for a batch unless the matching report is supplied with it. Ask for the current COA for the lot in stock before you order — we will send it.
Prices for every strength
Pricing
How much does KLOW cost?
KLOW starts at $19.00 per vial (£14.23), sold in boxes of 10 at $190.00. One box is the smallest order and there is no trade account or minimum spend. Larger volumes are negotiable.
| Strength | Per vial | Box of 10 |
|---|---|---|
| BPC-157 10 mg + GHK-Cu 50 mg + TB-500 10 mg + KPV 10 mg | $19.00 £14.23 | $190.00 £142.35 |
What to check before ordering, and what UK delivery involves: how the four blends compare.
Storage & reconstitution
Handling
How should KLOW be stored and reconstituted?
Sealed vials tolerate ambient temperature in transit and keep at −20 °C beyond that. Reconstitute slowly down the vial wall, swirl rather than shake, then refrigerate at 2–8 °C and aliquot before freezing.
Why each of those matters, and what a freeze–thaw cycle actually costs: peptide handling and storage reference. How long a mixed vial keeps: reconstituted peptide shelf life.
What it is researched for
Research Context
What is KLOW researched for?
Below is a plain-English summary of what published research has investigated, and what it has found. These are descriptions of research activity and published results. They are not claims about what KLOW does, and nothing here is a statement that it is safe or effective for any purpose.
What KPV adds
KPV is the three-residue tail of alpha-MSH, studied for anti-inflammatory activity. In cultured cells it reduces NF-kB signalling, and in rodent colitis models it lowers tissue damage scores. Controlling inflammation is the one property the other three components are not primarily studied for, which is the stated reason for including it. 1
The three GLOW components
GHK-Cu is a copper tripeptide reported to increase collagen and matrix protein production in skin fibroblast culture, with decades of cosmetic use behind it. BPC-157 and TB-500 are studied in rodent tendon, ligament and wound models, for new blood vessel formation and cell migration respectively. 234
GLOW and KLOW as a comparison pair
KLOW contains the same amounts of BPC-157, GHK-Cu and TB-500 as GLOW, with KPV as the only addition. The two preparations therefore differ by exactly one variable, which makes them a usable pair for isolating what KPV contributes in a given model.
What is not established
A four-peptide mixture multiplies the untested interactions. No study has tested any subset of this combination together, let alone all four, and no stability data has been published for a copper complex co-lyophilised alongside three other peptides.
References
- 1PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation. Gastroenterology (2008). PMID 18061177
- 2Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. Int J Mol Sci (2018). PMC6073405
- 3Stable Gastric Pentadecapeptide BPC 157 as a Therapy for the Disable Myotendinous Junctions in Rats. Biomedicines (2021). PMID 34829776
- 4Thymosin beta4: actin-sequestering protein moonlights to repair injured tissues. Trends Mol Med (2005). PMID 16099219
Links open the record on PubMed or PubMed Central. These are citations to published research, not claims about this product.
Compare KLOW
Laboratory uses
Applications
Where KLOW is used in the laboratory
- Combination protocols applying four peptides to one model, the widest premixed preparation in this catalogue
- Inflammation research, where KPV contributes the anti-inflammatory arm that the three GLOW components do not directly cover
- Extracellular matrix, collagen and connective-tissue repair models, drawing on the separate literature for each component
- Comparative work against GLOW, where the only variable between the two preparations is the presence of KPV
Batch COA
Verification
Does KLOW come with a COA?
Yes — every box. Each batch of KLOW is analysed by an independent third-party laboratory, and the certificate is tied to the batch number on the vial label.
Example COA. You receive the certificate matching your own batch.
Questions & answers
Questions
KLOW questions, answered
What is KLOW peptide?
KLOW is an informal market name for a four-peptide preparation rather than a single peptide: the GLOW combination of BPC-157, GHK-Cu and TB-500, with KPV added — the K in the name. Like GLOW it is trade shorthand, not a registered product, so the amounts behind the name differ between suppliers; ours are listed below and confirmed on the batch COA.
How does KLOW differ from GLOW?
KLOW is GLOW with KPV added. Both contain BPC-157 10 mg, GHK-Cu 50 mg and TB-500 10 mg per vial; KLOW adds KPV 10 mg. KPV is a tripeptide fragment of alpha-MSH studied for anti-inflammatory activity, which is the property the other three components are not primarily studied for. That single difference is what makes the two preparations useful as a comparison pair.
How much does KLOW cost?
KLOW starts at $19.00 per vial, sold in boxes of 10 vials at $190.00 per box (about £142.35). 1 strength available: BPC-157 10 mg + GHK-Cu 50 mg + TB-500 10 mg + KPV 10 mg. There is no minimum order.
Do you ship KLOW to the US?
Yes, to all 50 states. KLOW ships FedEx tracked from our UK stock or direct from our verified manufacturer, arriving 5 to 8 working days after dispatch, and is billed in US dollars from $19.00 per vial. We hold no US stock. If US customs seize an order, we reship it once at no cost. Our guide for US buyers covers US shipping, customs and pricing in full.
How is KLOW shipped to the UK and USA?
Tracked to the UK, USA, EU and worldwide, in plain packaging, dispatched within 1–2 working days. Country-by-country estimates are on the shipping page.
