Klow Stack (GHK-Cu, KPV, BPC-157 & TB-500) | 80mg
Klow Stack
Concentration: GHK-CU- 50mg, KPV - 10mg, BPC-157 - 10mg, TB-500 - 10mg (80mg total.) Storage: Must be kept in a refrigerator at 2°C–8°C for optimal potency. Status: For research purposes only Contents: Vial
Total content
80mg
Purity
≥99% HPLC
COA
Included
- Same-day dispatch on orders placed before the daily cut-off.
- Free shipping within the United States over $100, tracked.
- Cold-chain packed: sealed foil pouch, ice packs, plain outer box.
- Batch-specific Certificate of Analysis included.
Why this stack
Four research peptides — GHK-Cu, KPV, BPC-157 and TB-500 — in one 80mg vial. A broader curated set for multi-compound research, with a batch certificate that reports the content of each component.
| Total content | 80mg |
| Presentation | Vial , Metal Pen , Needles |
| Purity | ≥99% (HPLC) |
| Storage | Must be kept in a refrigerator at 2°C–8°C for optimal potency. |
| Certificate of Analysis | Batch-specific COA included |
How we ship it
Every pre-mixed vial ships cold from the warehouse serving your region and arrives in a plain box. Refrigerate on arrival at 2–8 °C.
Chilled
Vials travel with frozen gel packs inside a sealed foil pouch, which holds temperature for roughly seven days — far longer than the journey needs, so the cold chain has room to spare.
Insulated
The pouch sits inside a wool-lined envelope, so the cold chain survives a normal courier journey.
Discreet
Plain outer box with no branding and nothing on the label that names the contents.
Same-day dispatch
Order before the daily cut-off, Monday to Friday.
Free over $100
Within the US: tracked, next business day.
2–8 °C on arrival
Refrigerate as soon as the parcel lands.
Klow Stack( GHK-CU, KPV, BPC-157, and TB-500)
$300.00 · Qty 1
KLOW stack: the four components, and what a blend can and cannot do
KLOW is a supplier convention, not a molecule. It names a four-peptide research blend co-formulated in a single vial: KPV, BPC-157, TB-500 and GHK-Cu. It is listed as KLOW, the KLOW blend, KLOW peptide or the KLOW stack, and because the name is a convention rather than a standard, what you are buying is defined entirely by the four components and the amount of each. Two vendors' "KLOW" can differ substantially.
Research use only. Supplied strictly for in-vitro laboratory research. This page covers composition, chemistry, format, quality documentation and storage. It does not describe dosing, administration, or use in humans or animals, and makes no therapeutic claims.
The four components
| component | what it is |
|---|---|
| KPV | A tripeptide — lysine, proline, valine — corresponding to the C-terminal tripeptide of α-MSH |
| BPC-157 | A 15-residue synthetic peptide; sequence corresponds to a partial fragment of a gastric protein. Sold singly as BPC-157 |
| TB-500 | A synthetic fragment of thymosin beta-4, characterised by G-actin binding. Sold singly as TB-500 |
| GHK-Cu | The copper(II) complex of glycyl-L-histidyl-L-lysine. Sold singly as GHK-Cu |
Ours ships pre-mixed as a single solution, 80mg per vial, with the reusable metal pen and needles in the box, sealed and cold-packed with a batch Certificate of Analysis. Synthesized in the UK; each US batch verified in a US laboratory before release.
What a blend is good for, and what it is not
This is the part most product pages omit.
A co-formulated vial suits a study design that calls for the combination as a unit, and removes four separate reconstitution steps and four opportunities for operator variance.
It does not suit any design where a component needs to vary independently. You cannot adjust one peptide in a sealed co-formulation. If your work requires varying GHK-Cu against a fixed BPC-157, you need the single-compound vials, not this one.
There is also a documentation consequence worth understanding: a blend's COA characterises the co-formulation, not each of the four peptides as separate line items. That is normal and correct for a blended product, but it is less analytical information per compound than four single vials would give you. Buy the blend for convenience of the combination; buy singles when you need per-compound certainty.
KLOW compared with GLOW and Wolverine
Our catalogue carries three blends, and the difference is simply which components are present:
| blend | components |
|---|---|
| Wolverine | BPC-157 + TB-500 |
| GLOW | BPC-157 + TB-500 + GHK-Cu |
| KLOW | KPV + BPC-157 + TB-500 + GHK-Cu |
KLOW is GLOW plus KPV. Wolverine is GLOW without the copper peptide. Nothing else distinguishes them, and any page implying a fourth kind of difference is describing marketing rather than composition.
Pre-mixed, and the identity check that comes free
Because GHK-Cu is present, a correctly complexed KLOW solution is visibly blue. As with the single GHK-Cu vial, that colour is a free, instant sanity check on the copper component — colourless suggests it has not complexed. It does not substitute for the COA, but it costs nothing to look.
Storage
Refrigerate at 2–8°C on arrival, keep sealed and out of light, do not freeze. Record the lot number against the COA library before the outer packaging goes in the bin.
Before buying a KLOW from anyone
- Are all four components and their amounts stated? A blend without a stated composition is not a specification.
- Is the COA batch-specific, with methods named?
- Is the format stated — solution or powder — and at what total concentration?
- Does the supplier distinguish TB-500 (a fragment) from full-length thymosin beta-4?
- Are the claims confined to composition and quality, with no outcome language?
KLOW Stack: research FAQs
- What is the KLOW Stack?
- KLOW is a co-formulated research blend of four peptides, KPV, BPC-157, TB-500 and GHK-Cu, sharing a single vial. The name is a supplier convention rather than a chemical standard, so what actually defines a KLOW product is its stated composition. Ours is pre-mixed as one solution and is supplied for in-vitro laboratory research only, not for human or veterinary use.
- How much of each peptide does the KLOW Stack contain?
- The vial holds 80mg of peptide in total. GHK-Cu makes up 50mg of that, and KPV, BPC-157 and TB-500 contribute 10mg apiece. A headline total is not a specification on its own, since another vendor's 80mg blend could divide the mass quite differently, so compare listings component by component rather than by the number on the label.
- What is KPV, and why is it in KLOW?
- KPV is the tripeptide lysine-proline-valine, matching the last three residues of alpha-melanocyte-stimulating hormone (alpha-MSH). It is the only component that separates KLOW from the three-compound Glow Stack. Published work on KPV is in-vitro and preclinical, much of it on signaling in cultured cells. If that line of inquiry is not part of your design, Glow avoids an unnecessary variable.
- Can one peptide in KLOW be varied independently?
- No. The four compounds are fixed together at fill, so a protocol that needs to change GHK-Cu while holding BPC-157 constant, or to leave KPV out as a control, cannot do it with this vial. The blend suits designs that treat the four as a single unit. Where per-compound control matters, single-compound vials are the right tool.
- Does one certificate cover all four peptides?
- Yes, with a caveat worth understanding. Each KLOW batch has a Certificate of Analysis reporting HPLC purity, published in the COA library on this site, but it characterizes the co-formulation as a whole rather than listing four separate single-compound results. That is normal for a blend, though it carries less information per compound than four single vials would.
- Is the KLOW Stack a powder or a solution?
- A solution. The four peptides are pre-mixed together and sealed in one vial, which removes four separate reconstitution steps and the operator variance each would add. The cost is cold handling: the vial must stay at 2 to 8°C, out of light, and must not be frozen. Because GHK-Cu is present, a correctly made KLOW solution should look distinctly blue on arrival.
- Is the KLOW Stack FDA-approved, and is it on the WADA list?
- None of the four peptides is an FDA-approved drug, and the FDA has not evaluated this blend; it is sold for in-vitro laboratory research only and is not for human or veterinary use. For anyone bound by anti-doping rules, two of its components, BPC-157 and TB-500, appear on the World Anti-Doping Agency Prohibited List.
- How does the KLOW Stack ship within the US?
- Cold-packed from the warehouse that serves the United States, by tracked delivery that reaches US addresses the next business day. Prices are shown in US dollars and payment is by Visa, Mastercard or Apple Pay. On arrival, refrigerate the vial and record its lot number against the matching certificate before the outer box is thrown away.
Research guides
Disclaimer: Products sold on this website are intended for research and laboratory use only. They are not intended for human or animal consumption. Purchasers must be at least 18 years of age. By using this site, you agree to our Terms & Conditions.