4X Blend Methionine (15mg) / Choline Chloride (50mg) / Carnitine (50mg) / Dexpanthenol (5mg)

$80.00

Download Certificate of Analysis

1 published certificate

SKU: YPB.268 Categories: ,

Description

A multi-component research material supplied for controlled research environments. This 4X blend combines Methionine, Choline Chloride, Carnitine, and Dexpanthenol in a single research vial, supporting advanced studies of amino acid and lipid metabolism in model systems.


Composition

• Methionine
• Choline Chloride
• Carnitine
• Dexpanthenol (Vitamin B5)
• Appearance: Clear liquid formulation in a sealed research vial (10 mL total volume)


Research Focus (non-clinical)

• Investigation of methylation pathways and lipid metabolism
• Studies examining carnitine-dependent fatty acid transport and energy production
• Assay development for quantifying methionine, choline, and carnitine utilization
• Stability and compatibility testing of multi-component nutrient blends in solution

For qualified research professionals and institutional laboratories. Not for human use.


Documentation & Quality Assurance

Each lot is sourced through our verified global supply chain with emphasis on traceability and quality control.These documents are reviewed internally and displayed as they become available.


Important Notice

This product is intended for laboratory research use only. It is not intended for human or veterinary use, and must not be used for diagnostic, therapeutic, or clinical purposes.
This material is not a drug, medical device, or dietary supplement, and has not been evaluated by the U.S. Food and Drug Administration.


Quality & Manufacturing

We work directly with the manufacturers. Each supplier is reviewed for reliability, documentation integrity, and transparency in testing.

Our minimum purity standard is 98%. Every batch we ship has its own certificate of analysis, and every certificate confirms identity, purity and net content. Where available, endotoxin testing results are included on Certificates of Analysis to verify laboratory purity; their inclusion is for research quality assessment only and does not imply suitability for human or veterinary use.

All research materials are sealed for integrity and packaged for stability during storage and transport from manufacturing through final delivery.

Additional information

Weight 0.0625 lbs

Certificate of Analysis

Every batch undergoes independent third-party laboratory analysis to verify identity, potency, and safety. Testing includes quantitative assay verification, heavy metals screening, and comprehensive microbial analysis.

View Certificate of Analysis
Certificate of Analysis

Every batch is tested by an independent third-party laboratory before release. Every certificate confirms identity, purity and net content. Depending on the laboratory and the batch, testing may also include microbial, heavy metals or endotoxin screening. The certificate for your batch shows exactly which tests were performed.

VERIFIED ON EVERY BATCH:
Third-Party Lab Verified Identity Confirmed
Purity Verified Net Content Verified

Additional testing varies by laboratory and batch. See the certificate for your lot.

Storage Instructions

All products from Apex Health Performance are manufactured using a lyophilization (freeze-drying) process. This method is designed to maintain product integrity and allows vials to remain stable during shipping for approximately 3–4 months.

Once a vial is reconstituted with bacteriostatic water, it should be stored in the refrigerator to help maintain stability. Under these conditions, reconstituted material is generally considered stable for up to 30 days.

Lyophilization is a dehydration technique in which compounds are frozen and then exposed to low pressure. This causes the water in the vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure. This powder can be kept at room temperature until reconstitution.

Upon receipt, products should be stored away from heat and light. For short-term use, refrigeration at approximately 4°C (39°F) is suitable. For long-term storage (several months to years), vials may be placed in a freezer at approximately -80°C (-112°F). Freezing is the preferred method for preserving product stability over extended periods.

⚠️ Important Notice:
These products are intended for research use only. Not for human consumption.

Research Use Only

The following peer-reviewed publications reference compounds for laboratory and in vitro research purposes only. Not for human or animal use. Not intended to diagnose, treat, cure, or prevent any disease or condition.

PubMed — Peer-Reviewed Research

Published Scientific Research

Peer-reviewed laboratory studies investigating research peptides

6 Studies Found
100% Peer-Reviewed
PubMed Verified Source
Literature Review PubMed

Peptides: Emerging Candidates for the Prevention and Treatment of Skin Senescence: A Review.

Biomolecules 2025

Based on their mechanism of action, they can be classified into signal peptides, carrier peptides, neurotransmitter inhibitor peptides, and enzyme inhibitor peptides. Increasing peptide bioavailability and stability for enhanced delivery to the desired site of action and visible effects have become central points for the latest research due to their promising features.

View Full Study on PubMed
Literature Review PubMed

Bioactive peptides in cosmetic formulations: Review of current in vitro and ex vivo evidence.

Peptides 2025

Their claimed biological activities include signaling to increase collagen and hyaluronic acid production, modulation of pigmentation, maintenance of a healthy skin microbiome, antioxidant activity and cellular defense, immunomodulation, neurotransmitter inhibition, enzyme activity inhibition and trace mineral carriers.

View Full Study on PubMed
Literature Review PubMed

Antidiabetic Properties of Curcumin: Insights on New Mechanisms.

Advances in experimental medicine and biology 2021

Additionally, curcumin may regulate novel signaling molecules and enzymes involved in the pathophysiology of diabetes, including glucagon-like peptide-1, dipeptidyl peptidase-4, glucose transporters, alpha-glycosidase, alpha-amylase, and peroxisome proliferator-activated receptor gamma (PPARγ). Recent findings from in vitro and in vivo studies on novel signaling pathways involved in the potential beneficial effects of curcumin for the treatment of diabetes are discussed in this review.

View Full Study on PubMed
Molecular Analysis PubMed

Peptide-based building blocks as structural elements for supramolecular Gd-containing MRI contrast agents.

Journal of peptide science : an official publication of the European Peptide Society 2019

Magnetic resonance imaging (MRI) is one of the most important clinic diagnostic tool used to obtain high-quality body images. The administration of low-molecular-weight Gd complex-based MRI contrast agents (CAs) permits to increase the H relaxation rate of nearby water molecules, thus modulating signal intensity and contrast enhancement. Even if highly accurate, MRI modality suffers from its low sensitivity. Moreover, low-molecular-weight CAs rapidly equilibrate between the intravascular and ex

View Full Study on PubMed
Molecular Analysis PubMed

The multifaceted roles of the matrikine Pro-Gly-Pro in pulmonary health and disease.

European respiratory review : an official journal of the European Respiratory Society 2018

In this article, we describe our current understanding of the pathways that generate, degrade and modify PGP to dictate its bioavailability and stability. Accordingly, we discuss how this pathway is subverted in chronic lung diseases giving rise to persistent inflammation and pathological tissue remodelling.

View Full Study on PubMed
Literature Review PubMed

Linear Peptides in Intracellular Applications.

Current medicinal chemistry 2017

Interestingly, inside cells, endogenous peptides lacking any chemical modifications to enhance stability escape degradation to the point that they may even modulate intracellular signaling pathways. In addition, many unmodified synthetic peptides designed to interfere with intracellular signaling, following introduction into cells, have the expected activity demonstrating that biologically relevant concentrations can be reached.

View Full Study on PubMed
Research Use Only

The following peer-reviewed publications reference compounds for laboratory and in vitro research purposes only. Not for human or animal use. Not intended to diagnose, treat, cure, or prevent any disease or condition.

PubMed — Peer-Reviewed Research

Published Scientific Research

Peer-reviewed laboratory studies investigating research peptides

Literature Review PubMed

Peptides: Emerging Candidates for the Prevention and Treatment of Skin Senescence: A Review.

Biomolecules 2025

Based on their mechanism of action, they can be classified into signal peptides, carrier peptides, neurotransmitter inhibitor peptides, and enzyme inhibitor peptides. Increasing peptide bioavailability and stability for enhanced delivery to the desired site of action and visible effects have become central points for the latest research due to their promising features.

View Full Study on PubMed
Literature Review PubMed

Bioactive peptides in cosmetic formulations: Review of current in vitro and ex vivo evidence.

Peptides 2025

Their claimed biological activities include signaling to increase collagen and hyaluronic acid production, modulation of pigmentation, maintenance of a healthy skin microbiome, antioxidant activity and cellular defense, immunomodulation, neurotransmitter inhibition, enzyme activity inhibition and trace mineral carriers.

View Full Study on PubMed
Literature Review PubMed

Antidiabetic Properties of Curcumin: Insights on New Mechanisms.

Advances in experimental medicine and biology 2021

Additionally, curcumin may regulate novel signaling molecules and enzymes involved in the pathophysiology of diabetes, including glucagon-like peptide-1, dipeptidyl peptidase-4, glucose transporters, alpha-glycosidase, alpha-amylase, and peroxisome proliferator-activated receptor gamma (PPARγ). Recent findings from in vitro and in vivo studies on novel signaling pathways involved in the potential beneficial effects of curcumin for the treatment of diabetes are discussed in this review.

View Full Study on PubMed
Molecular Analysis PubMed

Peptide-based building blocks as structural elements for supramolecular Gd-containing MRI contrast agents.

Journal of peptide science : an official publication of the European Peptide Society 2019

Magnetic resonance imaging (MRI) is one of the most important clinic diagnostic tool used to obtain high-quality body images. The administration of low-molecular-weight Gd complex-based MRI contrast agents (CAs) permits to increase the H relaxation rate of nearby water molecules, thus modulating signal intensity and contrast enhancement. Even if highly accurate, MRI modality suffers from its low sensitivity. Moreover, low-molecular-weight CAs rapidly equilibrate between the intravascular and ex

View Full Study on PubMed
Molecular Analysis PubMed

The multifaceted roles of the matrikine Pro-Gly-Pro in pulmonary health and disease.

European respiratory review : an official journal of the European Respiratory Society 2018

In this article, we describe our current understanding of the pathways that generate, degrade and modify PGP to dictate its bioavailability and stability. Accordingly, we discuss how this pathway is subverted in chronic lung diseases giving rise to persistent inflammation and pathological tissue remodelling.

View Full Study on PubMed
Literature Review PubMed

Linear Peptides in Intracellular Applications.

Current medicinal chemistry 2017

Interestingly, inside cells, endogenous peptides lacking any chemical modifications to enhance stability escape degradation to the point that they may even modulate intracellular signaling pathways. In addition, many unmodified synthetic peptides designed to interfere with intracellular signaling, following introduction into cells, have the expected activity demonstrating that biologically relevant concentrations can be reached.

View Full Study on PubMed
TEST — CODE SNIPPETS IS WORKING
Research Use Only

The following peer-reviewed publications reference compounds for laboratory and in vitro research purposes only. Not for human or animal use. Not intended to diagnose, treat, cure, or prevent any disease or condition.

PubMed — Peer-Reviewed Research

Published Scientific Research

Peer-reviewed laboratory studies investigating research peptides

Literature Review PubMed

Peptides: Emerging Candidates for the Prevention and Treatment of Skin Senescence: A Review.

Biomolecules 2025

Based on their mechanism of action, they can be classified into signal peptides, carrier peptides, neurotransmitter inhibitor peptides, and enzyme inhibitor peptides. Increasing peptide bioavailability and stability for enhanced delivery to the desired site of action and visible effects have become central points for the latest research due to their promising features.

View Full Study on PubMed →
Literature Review PubMed

Bioactive peptides in cosmetic formulations: Review of current in vitro and ex vivo evidence.

Peptides 2025

Their claimed biological activities include signaling to increase collagen and hyaluronic acid production, modulation of pigmentation, maintenance of a healthy skin microbiome, antioxidant activity and cellular defense, immunomodulation, neurotransmitter inhibition, enzyme activity inhibition and trace mineral carriers.

View Full Study on PubMed →
Literature Review PubMed

Antidiabetic Properties of Curcumin: Insights on New Mechanisms.

Advances in experimental medicine and biology 2021

Additionally, curcumin may regulate novel signaling molecules and enzymes involved in the pathophysiology of diabetes, including glucagon-like peptide-1, dipeptidyl peptidase-4, glucose transporters, alpha-glycosidase, alpha-amylase, and peroxisome proliferator-activated receptor gamma (PPARγ). Recent findings from in vitro and in vivo studies on novel signaling pathways involved in the potential beneficial effects of curcumin for the treatment of diabetes are discussed in this review.

View Full Study on PubMed →
Molecular Analysis PubMed

Peptide-based building blocks as structural elements for supramolecular Gd-containing MRI contrast agents.

Journal of peptide science : an official publication of the European Peptide Society 2019

Magnetic resonance imaging (MRI) is one of the most important clinic diagnostic tool used to obtain high-quality body images. The administration of low-molecular-weight Gd complex-based MRI contrast agents (CAs) permits to increase the H relaxation rate of nearby water molecules, thus modulating signal intensity and contrast enhancement. Even if highly accurate, MRI modality suffers from its low sensitivity. Moreover, low-molecular-weight CAs rapidly equilibrate between the intravascular and ex

View Full Study on PubMed →
Molecular Analysis PubMed

The multifaceted roles of the matrikine Pro-Gly-Pro in pulmonary health and disease.

European respiratory review : an official journal of the European Respiratory Society 2018

In this article, we describe our current understanding of the pathways that generate, degrade and modify PGP to dictate its bioavailability and stability. Accordingly, we discuss how this pathway is subverted in chronic lung diseases giving rise to persistent inflammation and pathological tissue remodelling.

View Full Study on PubMed →
Literature Review PubMed

Linear Peptides in Intracellular Applications.

Current medicinal chemistry 2017

Interestingly, inside cells, endogenous peptides lacking any chemical modifications to enhance stability escape degradation to the point that they may even modulate intracellular signaling pathways. In addition, many unmodified synthetic peptides designed to interfere with intracellular signaling, following introduction into cells, have the expected activity demonstrating that biologically relevant concentrations can be reached.

View Full Study on PubMed →

Important Research Notice: These products are research chemicals intended exclusively for in vitro laboratory research by qualified professionals. Not for human or animal consumption. Not approved by the FDA for any therapeutic purpose. Sold strictly for scientific research applications only.

Frequently Asked Questions

Essential information about our research-grade peptides and quality standards.

Peptides are short chains of amino acids linked by peptide bonds, typically consisting of 2-50 amino acids. They serve as the building blocks of proteins and play crucial roles in biological processes.

Research peptides are synthesized versions of naturally occurring peptides, manufactured to precise specifications for use in scientific studies.

Key characteristics: High purity (≥98%), lyophilized form for stability, accompanied by Certificates of Analysis (COA), and manufactured under strict quality control protocols.

Peptide purity refers to the percentage of the target peptide present in a sample, measured via High-Performance Liquid Chromatography (HPLC).

Our Standard: All our research peptides maintain ≥98% purity, verified by third-party laboratory testing and documented in our Certificates of Analysis.

Higher purity is critical for research because impurities can interfere with experimental results and compromise the reproducibility of studies.

All products are supplied in lyophilized powder form within sterile, sealed vials. This format provides:

  • Maximum stability: Extended shelf life compared to liquid solutions
  • Precise measurement: Researchers can work with desired quantities
  • Contamination protection: Sealed vials prevent environmental exposure
  • Shipping durability: Powder form is more stable during transit

Lyophilized peptides:

  • Store at -4°F for long-term storage (up to 24 months)
  • Store at 36-46°F (refrigerated) for short-term storage (up to 3 months)
  • Keep away from light, moisture, and repeated temperature fluctuations

We supply research-grade peptides to:

  • Academic and university research laboratories
  • Pharmaceutical and biotechnology companies
  • Independent research institutions
  • Licensed professionals conducting legitimate scientific research

We maintain rigorous quality control through a multi-step verification process:

  • HPLC Analysis: Every batch tested to verify ≥98% purity
  • Mass Spectrometry: Molecular weight confirmation for peptide identity
  • Third-Party Testing: Independent laboratory verification
  • Sterility Protocols: Aseptic handling and packaging procedures
  • Batch Documentation: Complete traceability from synthesis to delivery

"Research Use Only" (RUO) is a classification indicating that a product is intended exclusively for laboratory research and experimental investigation.

All orders are shipped with research-grade handling protocols:

  • Packaging: Insulated containers with cold packs when required
  • Carriers: USPS Priority Mail
  • Processing: Orders placed before 12 PM EST ship same business day
  • Tracking: Full tracking information provided via email

We stand behind every product:

  • Quality guarantee: Full replacement or refund if products don't meet stated specifications
  • Shipping issues: Free replacement for damaged or lost shipments
  • Unopened returns: Accepted within 30 days for store credit
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⚠️ Research Use Only — Legal Acknowledgment

All products on this website are sold strictly for in vitro research and laboratory use only.

  • Not for human or veterinary use, consumption, or application
  • Not FDA-approved to diagnose, treat, cure, or prevent any disease
  • Buyer assumes full responsibility for legal compliance in their jurisdiction

By clicking "Accept," you confirm:

  • You are at least 21 years of age
  • You are a qualified researcher or laboratory professional
  • You represent the affiliation type selected above
  • You understand these products are for research purposes only