KLOW
4-in-1 anti-aging peptide blend: GHK-Cu 50mg + BPC-157 10mg + TB-500 10mg + KPV 10mg. Targets collagen synthesis, tissue regeneration, skin repair, and anti-inflammatory pathways.
99.00%Third-party lab: JanoshikView COA€149.99
€199.99
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Reconstitution: sensitive peptide
Some peptides react sensitively to the pH and quality of the reconstitution water and can turn cloudy or not fully dissolve if reconstituted incorrectly (for example with tap water, non-sterile water, old or contaminated bacteriostatic water, or the wrong water-to-peptide ratio). This is a common reconstitution matter, not an automatic sign of a faulty vial. Always reconstitute with fresh, pharmaceutical-grade bacteriostatic or sterile water, add it slowly down the inner wall of the vial, and swirl gently instead of shaking. If it still looks cloudy right after mixing, let it rest for 10 to 15 minutes and swirl again before judging clarity. Correct technique and suitable water are the customer's responsibility. If a vial stays cloudy after these steps, contact us with clear photos.
Use near-neutral bacteriostatic water (around pH 5.7); do not acidify. A blue to blue-green color is the copper and is normal.
The blue to blue-green color of copper peptides (GHK-Cu) is normal and not a defect.
Why peptides turn cloudy: the reconstitution guideFour peptides in one vial
KLOW combines BPC-157, TB-500, GHK-Cu and KPV in a single lyophilized blend. Each component covers a different repair pathway, which is why researchers reach for it when studying overlapping mechanisms.
BPC-157: gut-derived repair signal
A pentadecapeptide first isolated from gastric juice. In animal studies it supports tendon, muscle and gut healing through angiogenesis and nitric oxide signaling.
TB-500: cell migration driver
Full-length synthetic thymosin beta-4 sequesters G-actin and helps move fibroblasts and progenitor cells toward injured tissue in wound-healing models.
GHK-Cu: skin and collagen builder
A copper-binding tripeptide. Lab studies link it to collagen production, new capillary formation and gene programs associated with skin renewal.
KPV: anti-inflammatory tail of alpha-MSH
The C-terminal tripeptide of alpha-melanocyte-stimulating hormone. It dampens NF-kB signaling and is widely studied in models of intestinal and skin inflammation.
Designed for multi-pathway research
The blend is used in studies that look at tissue repair, anti-inflammation and skin regeneration together, instead of running four separate experiments.
Research areas
What is KLOW
KLOW is a research-grade blend of four peptides that have each been studied for tissue repair and inflammation control. The four components are BPC-157, TB-500, GHK-Cu and KPV. Instead of mixing them in the lab, the peptides are co-lyophilized in a single vial and reconstituted together. This is how the blend is used in published combination protocols and how most peptide labs supply it.
The name "KLOW" comes from extending the well-known GLOW blend (GHK-Cu + BPC-157 + TB-500) with KPV, the C-terminal anti-inflammatory tripeptide of alpha-MSH. It is a popular "research stack" because each peptide hits a different part of the repair process: structural rebuilding, cell migration, collagen synthesis and inflammation damping.
How it works
Each component plays a different role in tissue and skin research models.
BPC-157 is a stable pentadecapeptide originally found in human gastric juice. In animal studies it activates the VEGFR2 receptor and the Akt-eNOS pathway, which together drive new blood vessel formation and support tendon, muscle and gut healing. It is the most studied "body protection compound" in the regenerative peptide space.
TB-500 is full-length thymosin beta-4, the main G-actin-binding peptide in the body. By regulating the actin pool, it helps fibroblasts and stem cells migrate to the injury site. Studies in rats, mice and pigs show faster dermal wound closure, better corneal repair and reduced post-injury inflammation.
GHK-Cu is a small copper-binding tripeptide first identified in human plasma. It triggers collagen production in skin fibroblasts, supports capillary formation and modulates thousands of genes linked to repair and renewal in cell-culture work.
KPV is the C-terminal tripeptide of alpha-MSH. It blocks the NF-kB pathway and is the most researched of the alpha-MSH-derived anti-inflammatory peptides. In gut models it is taken up through the PepT1 transporter and reduces colitis severity.
The rationale for stacking them is straightforward: BPC-157 and TB-500 are paired in the regenerative literature for systemic and structural healing, while GHK-Cu and KPV are paired in the skin and anti-inflammation literature. Putting all four in one vial covers both axes in a single protocol.
Often studied alongside
Researchers comparing single-peptide and blend effects usually keep the individual components on hand. We supply each of the four KLOW peptides on its own.
Single peptide: gastric repair compound
Gastric pentadecapeptide (15 amino acids) known for exceptional tissue repair properties. Promotes wound healing, angiogenesis, and cytoprotection across tendons, muscles, gut, and nerves. Over 30 years of preclinical research.
Single peptide: full-length thymosin beta-4
Full-length 43-amino-acid Thymosin Beta-4, a naturally occurring repair protein, independently confirmed by our CoA. Promotes cell migration and new blood vessel formation for systemic tissue healing. Especially researched for muscle, tendon, and cardiac repair.
Single peptide: copper-binding tripeptide
Naturally occurring copper tripeptide complex for skin regeneration and anti-aging research. Stimulates collagen synthesis, accelerates wound healing, and modulates 4000+ genes. Plasma levels decline with age, making it a key target in longevity research.
Single peptide: anti-inflammatory tripeptide
Anti-inflammatory tripeptide derived from alpha-MSH (positions 11-13). Inhibits NF-kB signaling, supports gut barrier integrity, and shows antimicrobial activity. A targeted approach to inflammation research without broad immunosuppression.
A three-peptide variant, "GLOW", is also common in skin-focused protocols. It drops the KPV component and supplies GHK-Cu, BPC-157 and TB-500.
Three-peptide blend: GHK-Cu + BPC-157 + TB-500 for skin protocols
3-in-1 skin peptide blend: GHK-Cu 50mg + BPC-157 10mg + TB-500 10mg. Targets collagen synthesis, tissue regeneration, and skin repair for comprehensive dermatological research.
For reconstitution, the standard solvent in published protocols is bacteriostatic or sterile water. Once dissolved, the solution takes on a faint blue tint from the GHK copper complex.
Standard solvent for reconstitution
USP-grade sterile water with 0.9% benzyl alcohol (near-neutral, ~pH 5.7) - the standard solvent for reconstituting lyophilized peptides. Essential accessory for any peptide research. Each vial is sealed and ready to use.
Documentation
Material specification
Composition
Purity
Test method
Form
Storage (sealed)
Storage (reconstituted)
CoA
Selected research
- PMID 40789979
Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing
Curr Rev Musculoskelet Med, 2025, BPC-157 mechanism and clinical-gap review - PMID 40005999
Multifunctionality and Possible Medical Application of the BPC 157 Peptide
Pharmaceuticals, 2025, literature and patent review - PMID 23050815
The regenerative peptide thymosin β4 accelerates the rate of dermal healing in preclinical animal models and in patients
Ann N Y Acad Sci, 2012, TB-500 wound-healing review - PMID 10469335
Thymosin beta4 accelerates wound healing
J Invest Dermatol, 1999, foundational TB-500 dermal study - PMID 29986520
Regenerative and Protective Actions of GHK-Cu in Light of New Gene Data
Int J Mol Sci, 2018, canonical GHK-Cu mechanism review - PMID 18061177
PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation
Gastroenterology, 2008, KPV uptake and colitis model - PMID 12750433
Dissection of the anti-inflammatory effect of the core and C-terminal (KPV) alpha-melanocyte-stimulating hormone peptides
J Pharmacol Exp Ther, 2003, KPV anti-inflammatory mechanism
Research use only
This material is sold strictly for in-vitro research and laboratory use. Not intended for human or animal consumption, medical, cosmetic, or household applications. Suitable only for professional laboratory environments.
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