Description

Argireline Peptide Overview

Argireline Peptide is the commonly used name for acetyl hexapeptide-8 (Acetyl Hexapeptide-8), a synthetic six-amino-acid peptide widely studied in cosmetic and peptide research.

It is structurally related to a portion of SNAP-25, a protein involved in the SNARE complex that participates in neurotransmitter release. Because of this relationship, Argireline has attracted interest in cosmetic science and research into peptide-based topical formulations.

Argireline is particularly relevant to researchers studying:

• Cosmetic peptide formulations
• Skin-care ingredients
• Peptide chemistry
• Formulation stability
• Skin biology
• Structure–activity relationships
• Topical delivery systems

Research Use Only: Argireline Peptide is supplied for laboratory, cosmetic-science, and formulation research purposes. It is not intended for injection, human or veterinary administration, diagnosis, treatment, cure, or prevention of disease.

What Is Argireline Peptide?

Argireline Peptide is a synthetic peptide commonly identified as Acetyl Hexapeptide-8.

It contains six amino-acid residues and is structurally associated with the N-terminal region of SNAP-25.

The commonly reported sequence is:

Ac-Glu-Glu-Met-Gln-Arg-Arg-NH₂

or, using one-letter notation:

Ac-EEMQRR-NH₂

Argireline is primarily known in cosmetic science because researchers have investigated its interaction with molecular mechanisms involved in facial-expression-related muscle contraction.

For research and formulation professionals, Argireline can be relevant to studies involving:

• Cosmetic formulation development
• Peptide stability
• Skin-care ingredient research
• Topical delivery
• Molecular interaction studies
• Peptide characterization

Research findings should be interpreted according to the specific experimental model and formulation used.

Molecular Formula, Molecular Weight & Sequence

Commonly reported specifications for Acetyl Hexapeptide-8 (Argireline) include:

The N-terminal acetyl group and C-terminal amidation are important parts of the compound’s chemical identity.

Why chemical form matters

Researchers should confirm that the product’s:

Sequence → molecular formula → molecular weight → chemical modifications → mass spectrometry

all correspond to the exact material being supplied.

This is particularly important for peptides because terminal modifications and salts can change the molecular weight.

Purity

A suitable research-grade specification for Argireline Peptide may be:

Purity: ≥98% by HPLC

The actual purity should be confirmed using the batch-specific Certificate of Analysis (COA).

Depending on the testing package, analytical documentation may include:

• HPLC purity percentage
• HPLC chromatogram
• Mass spectrometry
• Calculated molecular weight
• Observed molecular weight
• Lot or batch number
• Testing date
• Net peptide quantity

For professional research, a batch-specific COA provides greater transparency than relying solely on a general product-page purity claim.

Appearance

Appearance: White to off-white lyophilized powder.

Argireline may be supplied in a dry, lyophilized form suitable for controlled laboratory handling and storage.

Small variations in powder appearance can occur because of manufacturing and drying conditions.

However, visual appearance alone cannot confirm identity or purity. Analytical methods such as HPLC and mass spectrometry should be used when verification is required.

Available Vial Sizes

Argireline Peptide can be offered in several research quantities depending on laboratory and formulation requirements.

Common vial sizes include:

• 2 mg
• 5 mg
• 10 mg
• 20 mg
• 50 mg

For many formulation and laboratory projects, 5 mg and 10 mg sizes are practical starting quantities.

Larger quantities may be suitable for laboratories performing repeated formulation experiments or analytical studies.

Always clearly state the net peptide quantity per vial on the product page and product label.

Storage Recommendations

Proper storage helps maintain the quality of lyophilized peptide material.

For lyophilized Argireline:

• Follow the storage conditions specified in the applicable product documentation.
• Keep the vial tightly sealed.
• Protect the material from moisture.
• Minimize exposure to excessive heat.
• Protect from unnecessary direct light.
• Avoid repeated temperature cycling.
• Allow a cold vial to equilibrate appropriately before opening to reduce condensation.

Controlled refrigerated or frozen storage may be appropriate depending on the manufacturer’s stability data and formulation.

Important: Exact storage requirements can vary according to formulation, packaging, and stability information. The instructions supplied with the specific batch should take priority.

Reconstitution Information

Argireline Peptide is supplied as a lyophilized research material. Reconstitution should be performed according to the laboratory’s intended application and validated formulation procedure.

Because peptide solubility can vary with solvent, pH, ionic strength, concentration, and temperature, researchers should select preparation conditions appropriate for their specific experiment.

General laboratory considerations include:

1. Allow the sealed vial to reach an appropriate temperature before opening.
2. Select a compatible laboratory-grade solvent.
3. Add the solvent carefully.
4. Avoid unnecessarily vigorous agitation.
5. Allow sufficient time for dissolution.
6. Minimize excessive foaming.
7. Consider aliquoting when appropriate to reduce repeated freeze–thaw exposure.
8. Record the solvent, concentration, preparation date, and storage conditions.

There is no universal reconstitution volume appropriate for every Argireline research or formulation application.

Intended Use — Research & Cosmetic Formulation Research

Argireline Peptide is intended for laboratory and formulation research.

It may be relevant to research involving:

• Cosmetic formulation development
• Peptide-based skin-care research
• Ingredient compatibility studies
• Stability testing
• Topical formulation research
• Peptide characterization

This product should not be represented as an injectable product, prescription medicine, or approved treatment.

Research Use Only. Not for Human or Veterinary Administration.

Researchers and formulation professionals are responsible for complying with applicable regulations and product-safety requirements.

Packaging & Shipping Information

Argireline Peptide should be packaged appropriately to protect the lyophilized material during transportation.

Professional research packaging may include:

• Securely sealed vial
• Product identification label
• Net peptide quantity
• Lot/batch number
• Research-use statement
• Protective secondary packaging
• Batch-specific COA or analytical documentation, where applicable

Upon receipt, inspect the vial and packaging for visible damage.

Before placing the product into laboratory inventory, verify:

Product name + quantity + lot number + chemical form + COA

Shipping conditions should follow the applicable stability requirements and relevant transportation regulations.

Frequently Asked Questions About Argireline Peptide

What is Argireline Peptide?

Argireline is the common name for Acetyl Hexapeptide-8, a synthetic six-amino-acid peptide widely studied in cosmetic science and formulation research.

What is another name for Argireline?

Argireline is commonly identified as Acetyl Hexapeptide-8.

What is the sequence of Argireline?

The commonly reported modified sequence is:

Ac-EEMQRR-NH₂

How many amino acids are in Argireline?

Argireline contains six amino-acid residues, making it a hexapeptide.

What is the molecular formula?

The commonly reported molecular formula for Acetyl Hexapeptide-8 is:

C₃₄H₆₀N₁₄O₁₂S

What is the molecular weight?

The molecular weight is approximately:

888.99 g/mol

What is the CAS number?

Argireline/Acetyl Hexapeptide-8 is commonly identified by:

CAS 616204-22-9

What does Argireline Peptide look like?

Research-grade Argireline is generally supplied as a white to off-white lyophilized powder.

What purity should researchers look for?

A research-grade specification may state ≥98% purity by HPLC. The actual result should be verified using the batch-specific COA.

Should Argireline come with a COA?

For professional research supply, batch-specific analytical documentation is highly valuable. Researchers should look for HPLC purity, mass spectrometry, molecular-weight information, lot number, and testing date where available.

How should Argireline be stored?

Follow the storage instructions supplied with the specific batch. Protect the lyophilized material from moisture, excessive heat, direct light, and unnecessary temperature cycling.

How is Argireline reconstituted?

Preparation depends on the intended formulation, solvent compatibility, concentration, and laboratory protocol. There is no universal reconstitution volume suitable for every application.

Is Argireline the same as Botox?

No. Argireline is a synthetic peptide ingredient, whereas Botox is a pharmaceutical preparation containing botulinum neurotoxin. They are chemically and biologically different.

Is Argireline intended for injection?

A research-grade Argireline product should not be presented as an injectable product. It is supplied for laboratory and formulation research.

Key Takeaway

Argireline Peptide is a synthetic six-amino-acid peptide commonly identified as Acetyl Hexapeptide-8. It is widely researched in cosmetic science, peptide chemistry, topical formulation, and skin-care ingredient development.

Key specifications commonly associated with Acetyl Hexapeptide-8 include:

• Sequence: Ac-EEMQRR-NH₂
• Molecular formula: C₃₄H₆₀N₁₄O₁₂S
• Molecular weight: approximately 888.99 g/mol
• Purity: ≥98% by HPLC as a potential research-grade specification
• Appearance: White to off-white lyophilized powder

For professional research purchasing, always verify the exact chemical identity and purity against the batch-specific COA.

A high-quality Argireline product page should emphasize accurate specifications, transparent analytical documentation, appropriate storage information, and responsible research-use labeling.

Research Use Only. Not for Human or Veterinary Administration.

Continue Learning: If you found this guide helpful, you may also want to read our previous peptide education articles covering the following topics

• What Bacteriostatic Water Should I Use For My Peptide?
• What’s Peptide Reconstitution?
• How Long Do Peptides Last?
• How Should Peptides Be Stored?
• How do I read a COA?
• Which peptide suppresses appetite the most?

Scientific Reference: For additional peer-reviewed information on peptide stability, sterile preparation, and pharmaceutical reconstitution practices, visit PubMed