No. All products sold by Vial & Error Labs are intended strictly for laboratory research and analytical applications by qualified researchers. They are not approved by the FDA or any regulatory body for human consumption, therapeutic use, or veterinary application. Always review the Safety Data Sheet (SDS) prior to handling.
Archive: February 2026
Do you offer bulk or wholesale pricing?
Yes. Purchasing 5 or more vials earns one free 5mg vial of your choice. Orders of 10+ vials unlock wholesale pricing tiers. For institutional purchasing or high-volume orders, contact us directly for custom quotes.
How fast do orders ship?
Most orders ship within 1–2 business days. Domestic orders ship free via USPS Priority Mail with full tracking. All orders are packaged in insulated, discreet packaging designed for transit protection of lyophilized powders.
What payment methods do you accept?
We accept Visa, Mastercard, American Express, Zelle, ACH bank transfer, and Tether (USDT). All card transactions are processed through a secure, PCI-compliant payment processor.
Do you include a Certificate of Analysis (COA) with every order?
Yes — every single order. The COA is lot-specific, sourced directly from the manufacturer, and corresponds to the exact lot shipped to you. We also maintain a publicly accessible COA Library on our website where you can download COAs by SKU, compound name, or lot number.
What purity standard do your compounds meet?
All compounds are verified at ≥98% purity via reverse-phase HPLC with mass spectrometry confirmation. Every order ships with a lot-specific Certificate of Analysis (COA) documenting the exact purity, identity, and testing methodology for that production lot.
GHK-Cu vs BPC-157: Extracellular Matrix vs Tissue Repair Pathways
Two Peptides, Two Systems
GHK-Cu (Glycyl-L-histidyl-L-lysine copper complex, CAS 300801-03-0) and BPC-157 (CAS 1628202-19-6) are both studied in contexts related to tissue repair and regeneration. However, they target fundamentally different biological systems, and treating them as interchangeable reflects a misunderstanding of their mechanisms.
GHK-Cu: Extracellular Matrix Remodeling
GHK-Cu is a tripeptide-copper complex that occurs naturally in human plasma, saliva, and urine. Its primary documented mechanism involves modulation of extracellular matrix (ECM) components. Published research has shown GHK-Cu influences collagen synthesis and organization, glycosaminoglycan production, decorin expression, and matrix metalloproteinase (MMP) activity.
The copper ion is not incidental — it is integral to the biological activity. Copper is a cofactor for lysyl oxidase, an enzyme critical for collagen and elastin cross-linking. The GHK peptide serves as a delivery mechanism for bioavailable copper to tissues, while also possessing independent signaling properties.
This ECM focus makes GHK-Cu particularly relevant to dermal research, wound remodeling studies, and any model where the structural protein matrix is the primary variable of interest.
BPC-157: Multi-Pathway Tissue Repair
BPC-157 operates through a broader set of signaling pathways, including nitric oxide system modulation, growth factor upregulation (VEGF, FGF, HGF), and the FAK-paxillin cell adhesion pathway. Rather than targeting a single system like the ECM, BPC-157 appears to influence multiple upstream signaling cascades that collectively support tissue repair.
This multi-pathway profile gives BPC-157 a wider range of studied applications — from gastrointestinal models to musculoskeletal injury to neuroprotection — but also makes its mechanism harder to isolate in controlled experiments.
Choosing Between Them
The choice between GHK-Cu and BPC-157 should be driven by the research question. If the model focuses on ECM composition, collagen remodeling, or dermal biology, GHK-Cu is the more targeted tool. If the model involves broader tissue repair mechanisms, inflammatory modulation, or GI biology, BPC-157 has a more relevant literature base.
They are not competing products — they are different tools for different questions. Using the wrong one does not create a safety issue in a research context, but it may create a specificity issue that confounds interpretation.
Availability
Vial & Error Labs carries both GHK-Cu (50 mg) and BPC-157 (5 mg) as individual compounds. Both ship with lot-specific COA and GHS-compliant SDS. For research use only.
MOTS-c: The Mitochondrial-Derived Peptide Reshaping Metabolic Research
What Is MOTS-c?
MOTS-c (Mitochondrial Open Reading Frame of the Twelve S rRNA type-c) is a 16-amino-acid peptide encoded by the mitochondrial genome. First described by Dr. Changhan Lee and colleagues at the University of Southern California in 2015, MOTS-c represents a class of signaling molecules called mitochondrial-derived peptides (MDPs) — peptides encoded within the mitochondrial DNA that function as retrograde signaling molecules, communicating from mitochondria back to the nucleus and other cellular compartments.
This discovery was significant because it challenged the traditional view of mitochondria as purely energy-producing organelles. The identification of MOTS-c and other MDPs demonstrated that mitochondria actively participate in cellular signaling and metabolic regulation through peptide-mediated communication.
Mechanism of Action
AMPK Pathway Activation
The primary documented mechanism of MOTS-c involves activation of AMP-activated protein kinase (AMPK), a master regulator of cellular energy homeostasis. Published research has shown that MOTS-c activates AMPK by modulating the folate-methionine cycle, which indirectly affects the cellular AMP:ATP ratio. This is distinct from direct AMPK activators like AICAR, which mimic AMP allosterically.
Nuclear Translocation
A particularly notable finding is that MOTS-c has been observed to translocate to the nucleus under metabolic stress conditions. Once in the nucleus, it interacts with transcription factors involved in antioxidant response and metabolic gene regulation. This nuclear translocation has been documented in both cell culture and mouse models, representing a novel signaling paradigm for a mitochondrial-encoded peptide.
Research Applications
Metabolic Signaling Models
The most active area of MOTS-c research involves metabolic regulation. In mouse models, MOTS-c administration has been associated with improved glucose homeostasis, increased insulin sensitivity, and prevention of diet-induced obesity. These effects appear mediated through the AMPK pathway and downstream metabolic gene regulation.
Exercise Biology
MOTS-c has been described as an “exercise mimetic” in research contexts — meaning it activates some of the same metabolic pathways that physical exercise engages. Published studies have shown that circulating MOTS-c levels increase in response to exercise in humans, and that exogenous MOTS-c administration in sedentary mice produces some metabolic adaptations similar to those seen with exercise training.
Aging Research
Because mitochondrial function declines with age, and because endogenous MOTS-c levels appear to decrease in older organisms, the peptide has attracted interest in aging research. Studies in aged mice have shown that MOTS-c treatment improved physical capacity and metabolic parameters. However, this research is in early stages and no conclusions about human aging should be drawn from these animal models.
Current Limitations
MOTS-c research is newer than most peptide fields — the initial discovery paper was published in 2015. While the mechanistic work is compelling, the total volume of published research is smaller than longer-established peptides like BPC-157 or Thymosin Beta-4. Replication across independent laboratories is ongoing.
Additionally, the pharmacokinetics of exogenous MOTS-c in vivo are not fully characterized. Questions remain about bioavailability, half-life, and optimal dosing parameters in research models.
Specifications
Form: Lyophilized powder. Purity: ≥98% (HPLC). Storage: -20°C. Available strength: 10 mg.
MOTS-c from Vial & Error Labs ships with lot-specific COA and SDS documentation. For research use only.