Your Cart

Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week    
Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week     Checkout currently disabled and should return later this week    
For Research Use Only. Not for Use in diagnostic procedures.

This product is solely intended for research purposes as a chemical compound. Its designation permits its use exclusively for in vitro testing and laboratory experimentation. All information regarding this product provided on our website is purely educational. By law, any form of bodily introduction of this product into humans or animals is strictly prohibited. It should only be handled by professionals who are licensed and qualified. This product is neither a drug, food, nor cosmetic, and must not be misrepresented, misused, or mislabeled as such.

Meta-Z Kit

Peptide Partners' energy-focused proprietary blend. Formulated for researchers looking to analyze large combinations of vitamins and aminos.

 

Swipe right to view full table →

 Ingredient

CAS

Quantity (mg/mL)

B12 (Methylcobalamin)

13422-55-4

1 mg/mL
Methionine

63-68-3

50 mg/mL
Inositol 

87-89-8

100 mg/mL
Choline Bitartrate

87-67-2

400 mg/mL
Taurine 

107-35-7

50 mg/mL
Leucine 

61-90-5

20 mg/mL
L-Carnitine 

541-15-1

500 mg/mL
L-Arginine  

74-79-3

200 mg/mL
Alpha-lipoic acid

1077-28-7

25 mg/mL

Note: also contains 2% Benzoic Acid, 2% Lidocaine 0.1%, and sterile water.

Independent analysis pending

Peptide Partners Manufacturer Id: DF05

Batch Id: MZ20250726

Meta-Z Overview

(For Educational Purposes Only)

Composition and Ingredients

This vitamin and amino acid shot contains a carefully formulated blend of nine bioactive compounds, each selected for their specific physiological functions and therapeutic potential. The composition includes essential and semi-essential amino acids, vitamins, and cofactors that work synergistically to support various metabolic and cellular processes throughout the body.

B12 (Methylcobalamin) - The activated form of vitamin B12 that serves as a coenzyme for methionine synthase and is essential for nerve function, DNA synthesis, and red blood cell formation [1].

Methionine - An essential sulfur-containing amino acid that acts as a building block for proteins and serves as a precursor for important molecules including S-adenosylmethionine (SAM), which is crucial for methylation processes [2].

Inositol - A sugar-like compound that functions as a cellular messenger, particularly important for insulin signaling, neurotransmitter regulation, and cell membrane integrity [3].

Choline Bitartrate - An essential nutrient that serves as a source of methyl groups and is required for the synthesis of acetylcholine, phosphatidylcholine, and other vital compounds supporting brain function and liver health [4].

Taurine - A semi-essential amino acid that supports cardiovascular function, maintains cellular hydration, aids in bile salt formation, and acts as an antioxidant throughout the nervous system [5].

Leucine - A branched-chain amino acid (BCAA) that stimulates muscle protein synthesis, supports growth hormone production, and plays a critical role in muscle tissue repair and development [6].

L-Arginine - A semi-essential amino acid that serves as a precursor to nitric oxide, supporting cardiovascular health, immune function, and protein synthesis [7].

L-Carnitine - An amino acid derivative that facilitates the transport of fatty acids into mitochondria for energy production, supporting heart and brain function while enhancing fat metabolism [8].

Alpha-lipoic Acid - A powerful antioxidant that is both water and fat-soluble, supporting cellular energy production, glucose metabolism, and protection against oxidative stress [9].

Mechanism of Action

The synergistic combination of ingredients in this vitamin and amino acid shot operates through multiple interconnected pathways to support optimal health and cellular function. These compounds work at the molecular level to enhance energy production, support neurotransmitter synthesis, promote antioxidant activity, and facilitate various metabolic processes essential for maintaining physiological homeostasis.

Cellular Energy Production - L-Carnitine facilitates fatty acid oxidation in mitochondria while Alpha-lipoic acid supports the electron transport chain, collectively enhancing ATP synthesis and cellular energy availability [8,9].

Neurotransmitter Synthesis and Function - Methylcobalamin supports nerve regeneration and conduction, while Choline provides the substrate for acetylcholine production, and Inositol modulates serotonin and dopamine signaling pathways [1,3,4].

Methylation and DNA Regulation - Methionine converts to S-adenosylmethionine (SAM), the primary methyl donor for DNA methylation, while Methylcobalamin serves as a cofactor in the methylation cycle, supporting genetic expression and cellular repair [1,2].

Antioxidant Protection - Taurine and Alpha-lipoic acid provide comprehensive antioxidant coverage, protecting cells from oxidative stress and inflammation while supporting the regeneration of other antioxidants like vitamins C and E [5,9].

Cardiovascular Support - L-Arginine converts to nitric oxide, promoting vasodilation and improved circulation, while Taurine supports cardiac muscle function and helps regulate blood pressure [5,7].

Protein Synthesis and Muscle Function - Leucine activates the mTOR pathway to stimulate muscle protein synthesis, while L-Arginine provides substrate for protein production and wound healing processes [6,7].

Metabolic Regulation - Inositol enhances insulin sensitivity and glucose metabolism, while Alpha-lipoic acid improves glucose uptake and supports healthy blood sugar levels [3,9].

Liver Function and Detoxification - Methionine supports glutathione production for detoxification, Choline prevents fatty liver disease, and Taurine aids in bile acid conjugation for fat digestion [2,4,5].

Administration and Storage

The vitamin and amino acid shot can be administered through multiple routes depending on clinical requirements, patient preferences, and the desired onset of action. Proper administration technique and storage conditions are essential for maintaining the stability and efficacy of the bioactive compounds while ensuring patient safety and optimal therapeutic outcomes.

Intramuscular (IM) Injection - The most commonly used route for vitamin and amino acid shots, typically administered into the deltoid, vastus lateralis, or gluteal muscles, providing sustained absorption over several hours to days [1,7].

Subcutaneous (SubQ) Injection - An alternative route that involves injection into the fatty tissue beneath the skin, often preferred for patients who require frequent dosing or have concerns about muscle injection discomfort [1,3].

Typical Frequency of Administration - Most vitamin and amino acid shots are administered 1-3 times per week initially, with maintenance dosing ranging from weekly to monthly depending on individual patient needs, deficiency status, and clinical response [1,2,3,4,5,6,7,8,9].

Onset of Action - Initial effects may be noticed within 24-48 hours for some ingredients like B12 and L-Arginine, while full therapeutic benefits typically develop over 2-12 weeks of consistent administration [1,7].

Storage Requirements - The formulation should be stored in a refrigerator at 2-8°C (36-46°F), protected from light exposure, and never frozen to maintain the stability of heat-sensitive compounds like vitamins and amino acids [1,2,3,4,5,6,7,8,9].

Handling and Preparation - Single-use vials should be used immediately after opening, and proper aseptic technique must be maintained during preparation and administration to prevent contamination and ensure patient safety.

Contraindications and Precautions - Patients with known allergies to any ingredients, recent heart attack, pregnancy, breastfeeding, or certain medical conditions should consult with healthcare providers before administration [7].

Potential Benefits

Individuals receiving this vitamin and amino acid shot may experience a wide range of health improvements due to the comprehensive support provided by the synergistic combination of bioactive compounds. These benefits typically develop gradually over time as the body utilizes the nutrients to optimize various physiological processes and address underlying deficiencies or metabolic imbalances.

Increased Energy Levels - Enhanced mitochondrial function and improved fat metabolism can lead to sustained energy throughout the day without the crashes associated with stimulants [8,9].

Improved Mental Clarity and Focus - Better neurotransmitter production and brain metabolism support cognitive function, memory, and mental sharpness [1,3,4].

Enhanced Mood Stability - Balanced neurotransmitter levels, particularly serotonin and dopamine, can help stabilize mood and reduce symptoms of anxiety or depression [3,5].

Better Sleep Quality - Improved nervous system function and reduced oxidative stress can promote more restful and restorative sleep patterns [1,5].

Increased Muscle Strength and Recovery - Enhanced protein synthesis and reduced muscle damage can improve athletic performance and recovery from exercise [6,7].

Improved Cardiovascular Health - Better circulation, reduced blood pressure, and enhanced heart function through nitric oxide production and cardiac muscle support [5,7].

Enhanced Immune Function - Antioxidant protection and improved cellular energy can strengthen the body's natural defense mechanisms against illness and infection [5,9].

Better Stress Tolerance - Improved adrenal function and enhanced cellular resilience can help the body better cope with physical and emotional stressors [1,5,9].

Improved Skin, Hair, and Nail Health - Enhanced protein synthesis, better circulation, and antioxidant protection can promote healthier appearance and faster healing [2,6,7].

Weight Management Support - Improved fat metabolism, better insulin sensitivity, and enhanced muscle mass can support healthy weight management goals [3,8,9].

Reduced Inflammation - Comprehensive antioxidant coverage can help reduce chronic inflammation throughout the body, supporting overall health and longevity [5,9].

Enhanced Liver Function - Support for detoxification pathways and prevention of fatty liver disease can improve overall metabolic health [2,4,5].

Conclusion

The vitamin and amino acid shot represents a scientifically-formulated approach to nutritional supplementation that addresses multiple physiological systems simultaneously. The carefully selected combination of methylcobalamin, methionine, inositol, choline bitartrate, taurine, leucine, L-arginine, L-carnitine, and alpha-lipoic acid provides comprehensive support for energy production, neurotransmitter function, antioxidant protection, and metabolic optimization. While individual responses may vary, the synergistic effects of these compounds offer significant potential for improving overall health, energy levels, cognitive function, and physical performance. As with any medical intervention, proper administration, appropriate dosing, and professional oversight are essential for maximizing benefits while ensuring patient safety. The growing body of research supporting each individual component, combined with their complementary mechanisms of action, suggests that this formulation may serve as an effective tool for addressing nutritional deficiencies and supporting optimal health in appropriately selected patients.

Bibliography

[1] Zhang, M., Han, W., Hu, S., & Xu, H. (2013). Methylcobalamin: A Potential Vitamin of Pain Killer. Neural Plasticity, 2013, 424651. https://pmc.ncbi.nlm.nih.gov/articles/PMC3888748/

[2] Tinsley, G. (2024). Methionine: Functions, Food Sources and Side Effects. Healthline. https://www.healthline.com/nutrition/methionine

[3] Cleveland Clinic. (2023). Inositol: Benefits & Side Effects. Cleveland Clinic Health Library. https://my.clevelandclinic.org/health/drugs/25173-inositol

[4] National Institutes of Health Office of Dietary Supplements. (2022). Choline - Health Professional Fact Sheet. NIH ODS. https://ods.od.nih.gov/factsheets/Choline-HealthProfessional/

[5] Cleveland Clinic Health Essentials. (2023). Taurine Benefits and Side Effects. Cleveland Clinic. https://health.clevelandclinic.org/taurine

[6] Multiple medical databases and research articles on Leucine (BCAA) functions and benefits.

[7] Cleveland Clinic. (2022). L-Arginine Benefits, Uses & Side Effects. Cleveland Clinic Health Library. https://my.clevelandclinic.org/health/drugs/22536-l-arginine

[8] Multiple medical databases and research articles on L-Carnitine functions and cardiovascular benefits.

[9] Multiple medical databases and research articles on Alpha-lipoic Acid antioxidant properties and metabolic benefits.

Storage Instructions:

All of our manufacturing partners produce peptides using the Lyophilization (Freeze Drying) process, ensuring products maintain stability for shipping and storage for 6+ months. 

Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4°C (39°F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.

However, for longer-term storage (several months to years) it is more preferable to store peptides in a freezer at -80°C (-112°F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide's stability.

 

Third-party testing

Peptide Partners is committed to providing high-purity peptides at wholesale prices by frequently auditing its manufacturing partners using third-party laboratories. Independent analysis is vital to ensuring the quality and authenticity of your research peptides. Never trust a supplier that doesn't submit to third-party testing. Never trust a certification that cannot be independently verified. All of the certificates that we provide can be validated on the third-party laboratory's website. 

Each product description contains a Manufacturer ID corresponding to the producer of that product. The table below contains the most recent third-party analyses for all manufacturers and peptides listed on Peptide Partners. 

Current Purity certifications

Swipe right to view full table →

 Peptide Manufacturer Date Purity Laboratory
Sermorelin WF03 2025-08-27 99.84% BioRegen View File
Tesamorelin WF03 2025-08-22 99.10% TrustPointe View File
CJC-1295 ND WF03 2025-08-20 99.43% TrustPointe View File
Semaglutide EJ12 2025-08-20 99.34% TrustPointe View File
Ipamorelin WF03 2025-08-15 99.64% TrustPointe View File
GHK-Cu SH07 2025-08-09 99.73% BioRegen View File
Tirzepatide EJ12 2025-08-08 99.41% TrustPointe View File
NAD+ SH07 2025-07-31 99.76% BioRegen View File
VIP SH07 2025-07-31 99.42% BioRegen View File
Retatrutide SH07 2025-07-25 99.42% TrustPointe View File
BPC/TB500 SH07 2025-07-17 99.52% TrustPointe View File
TB500 (TB4) SH07 2025-07-17 99.68% TrustPointe View File
BPC-157 SH07 2025-07-17 99.92% TrustPointe View File
Cagrilinitide EJ12 2025-04-17 99.64% TrustPointe View File

Current Endotoxin Certifications

Swipe right to view full table →

 Peptide Manufacturer Date USP<85> Conformation Laboratory
Bacteriostatic Water SH07 2025-08-27 Conforms BioRegen View File
Tesamorelin WF03 2025-08-20 Conforms TrustPointe View File
CJC-1295 ND WF03 2025-08-20 Conforms TrustPointe View File
Sermorelin WF03 2025-08-20 Conforms TrustPointe View File
Semaglutide EJ12 2025-08-20 Conforms TrustPointe View File
Ipamorelin WF03 2025-08-11 Conforms TrustPointe View File
GHK-Cu SH07 2025-08-08 Conforms TrustPointe View File
Tirzepatide EJ12 2025-08-04 Conforms TrustPointe View File
NAD+ SH07 2025-07-29 Conforms TrustPointe View File
KPV SH07 2025-07-29 Conforms TrustPointe View File
VIP SH07 2025-07-29 Conforms TrustPointe View File
Retatrutide SH07 2025-07-24 Conforms TrustPointe View File
BPC/TB500 SH07 2025-07-17 Conforms TrustPointe View File
BPC-157 SH07 2025-07-17 Conforms TrustPointe View File
TB500 (TB4) SH07 2025-07-17 Conforms TrustPointe View File

Current Sterility Certifications

Swipe right to view full table →

 Product Manufacturer Date USP<71> Pass/Fail Laboratory
Meta-Z DF05 2025-08-26 Pass TrustPointe View File

Verifiable certificates

When obtaining research peptides, it is essential to validate the authenticity of the Certificate of Analysis (COA). Certificate fraud runs rampant throughout the research peptide supply community. The two most common forms are doctored images and stolen certificates. You can check for these two by making sure the third-party laboratory's website shows that the certificate belongs to the supplier and the values haven't been doctored. TrustPointe Analytics provides a few simple rules for verification:

When reviewing a COA, the first thing that should be done is to look for a way to verify that the COA is legitimate – either a link, key, or QR Code. That should take you to the laboratory’s website, not a third party website. If you follow the link and it does not take you to the laboratory’s website (URL), it is likely falsified. Finally, verify that the information on the COA provided matches the COA on the laboratory’s website. People who falsify COAs cannot access the laboratory’s website, so they are unable to alter the original COA.

Beware of fraudulent laboratories

Not only must one remain vigilant about potentially fraudulent certificates, one must also be aware that there are third-party laboratories whose results cannot be considered reliable or scientifically valid. Unfortunately, there is significant evidence to suggest that one of the most popular third-party testing labs does not use scientifically sound methodologies and, in some cases, has fabricated results. There isn't an easy remedy for this problem, but when labs are particularly bad, there tend to be a lot of discussion threads on various social platforms.

Interpreting Endotoxin Results (via TrustPointe)

Our friends at TrustPointe have provided the following detailed explanation to help interpret the results of the endotoxin testing.

We use the Charles River Endosafe PTS system to test for bacterial endotoxins following USP <85> guidelines:

  • USP <85> Bacterial Endotoxin Result: <x.xx EU/mL
    Because it’s reported as “<x.xx” this indicates the test did not detect endotoxin above the detection limit of the cartridge.
  • If a result is above the limit of detection of the cartridge, it will be reported as a number (without the "<").

The following are suitability parameters that verify the system was working properly and the sample prep dilution is appropriate for accurate results. Peptides often interfere with endotoxin detection due to their tendency to bind or mask endotoxins, which can lead to inaccurate low results. To overcome this, samples are typically tested at a large dilution to reduce matrix interference and ensure reliable recovery and detection in compliance with USP <85>.  If the dilution is not correct, the run will fail suitability and we'll need to adjust the dilution to ensure accurate results. We provide the suitability data to customers for transparency and so they can be confident in the results.

USP <85> Sample CV %:

  • CV stands for coefficient of variation, a measure of repeatability.
  • For our lab, CV has to be <25% or the result to be considered valid

USP <85> Spike CV %:

  • This refers to the precision of the positive control (spiked sample).
  • Again, for our lab CV has to be <25% or the result to be considered valid

USP <85> Spike Recovery

  • This tells us how much of the known endotoxin spike was recovered from your sample.
  • The acceptable range is 50–200% per USP <85>
NOT SUITABLE FOR HUMAN CONSUMPTION – INTENDED FOR RESEARCH ONLY

Thank you for choosing Peptide Partners.

NOTICE: All information provided above is strictly intended for educational and informational purposes. Our products are designed for research use solely and are not approved for human consumption. Please refrain from any form of ingestion.

By making a purchase from Peptide Partners, you acknowledge that you are acquiring Research Chemicals. Our products are exclusively intended for laboratory research purposes.

It is imperative that only qualified and licensed professionals handle this product. Under no circumstances should it be utilized as a drug, agricultural or pesticide product, food additive, or household chemical. Misrepresentation of this product for such purposes is strictly prohibited by law. All content on our website is provided for educational use exclusively. Any form of introduction into the human or animal body is illegal.

Recently viewed products