What formats of Pentapeptide-18 are listed?

Peptide Supply Club currently lists 200 mg. Current availability is shown on this page and rechecked at order submission.

What is the stated catalog purpose for Pentapeptide-18?

Peptide Supply Club catalog materials are supplied for qualified, lawful laboratory and research purposes only.

COSMETIC / DIRECT CATALOG PRICING

Pentapeptide-18

Pentapeptide-18 is an INCI cosmetic peptide also known by the trade name Leuphasyl; catalog labeling does not state sequence, salt, or analytical specification.

Format: Lyophilized research vial
Listed formats: 1
Available now: 0
Catalog class: Cosmetic

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200 mgPricing by inquiry · Available
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TECHNICAL OVERVIEW

Identity first, claims kept in scope.

Pentapeptide-18 is an INCI cosmetic peptide also known by the trade name Leuphasyl; catalog labeling does not state sequence, salt, or analytical specification.

The cosmetic classification supports catalog navigation; it does not establish efficacy, safety, approval, human use, or equivalence to a material used in a cited study.

SPECIFICATIONS

Material class: Cosmetic
Physical format: Lyophilized vial
Research status: Research purposes only
Commerce status: Contact for current availability

PLAIN-LANGUAGE RESEARCH SNAPSHOT

What researchers have actually studied.

Pentapeptide-18 is an INCI cosmetic peptide also known by the trade name Leuphasyl; catalog labeling does not state sequence, salt, or analytical specification.

Research covered: Published work has evaluated pentapeptide-18 within retinol-loaded lipid nanoparticles and in multi-component cosmetic formulations. Another cell and reconstructed-skin study examined modified pentapeptide-18 sequences containing terminal D-tyrosine, not necessarily the unmodified catalog peptide.
Important limit: Formulation studies do not isolate pentapeptide-18, and modified-sequence data cannot be transferred to an unverified catalog sequence. No source located validates the 200 mg catalog material or a stand-alone human effect.
Authoritative sources: PubMed — retinol/peptide lipid-nanoparticle study ↗
PubMed — modified pentapeptide-18 cell and skin-model study ↗

Explore the research library →

Catalog availability does not imply evidence strength, product equivalence, safety, efficacy, or a suggested combination. No dosage or use recommendation is provided.

FACTUAL FAQ

Pentapeptide-18 catalog questions

What formats are currently listed?

200 mg. Current price and stock state appear above.

What did researchers study?

Published work has evaluated pentapeptide-18 within retinol-loaded lipid nanoparticles and in multi-component cosmetic formulations. Another cell and reconstructed-skin study examined modified pentapeptide-18 sequences containing terminal D-tyrosine, not necessarily the unmodified catalog peptide.

What is the most important evidence limit?

Formulation studies do not isolate pentapeptide-18, and modified-sequence data cannot be transferred to an unverified catalog sequence. No source located validates the 200 mg catalog material or a stand-alone human effect.

How should this listing be interpreted?

It is a research-material catalog listing, not medical guidance, a dosage recommendation, a safety or efficacy claim, or evidence of regulatory approval.

Where can I review related scientific references?

Use the PSC research library to locate general and compound-related source material. Open related research references →

WHOLESALE KITS / TEN MATCHING VIALS EACH

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Start with our primary Wholesale Kit catalog: ten matching, clearly labeled lyophilized research vials per kit. Single vials remain available below when a full kit is not needed.

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01Browse 62 research peptidesSearch names, strengths, and categories 02Member order statusReview progress through fulfillment 03From cart to trackingSee every step before ordering 04Open the free Resource DeskTrusted handbooks, study tools, and public databases

VIAL FORMAT / LAB HANDLING

Lyophilized now.
Reconstituted for research.

01 / SUPPLIEDLyophilized vials

PSC catalog items are supplied as lyophilized—freeze-dried—research material.

02 / BEFORE RESEARCHReconstitution required

Reconstitution is required before research use. Solvent choice and procedure vary by material; use a validated compound-specific protocol.

03 / STORAGEFrozen, then refrigerated

Store unopened lyophilized vials frozen. After reconstitution, refrigerate for short-term research handling unless a validated compound-specific protocol requires different conditions.

DISCOVER / RESEARCH FOCUS

Find the right peptide, faster.

61RESEARCH PEPTIDES

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MOLECULAR FIELD GUIDE / 02

Peptide science,
mapped visually.

A peptide is not defined by a marketing category. Its amino-acid order, side-chain chemistry, charge, flexibility, and three-dimensional ensemble shape what researchers can observe.

01 / PEPTIDE ANATOMYNCBI SOURCE ↗

A chain with direction.

Amino acids are linked head-to-tail by covalent peptide bonds. By convention, a sequence is written from its amino terminus to its carboxyl terminus: N → C.

H₂N→ALA—GLY—SER—LEU→COOH

NONPOLARALA · VAL · LEU

Side chains that tend to avoid water.

POLARSER · THR · GLN

Side chains that form favorable polar interactions.

ACIDICASP · GLU

Often negatively charged near neutral pH.

BASICLYS · ARG · HIS

Often positively charged, depending on pH.

Property groups are simplified teaching categories; charge and behavior depend on the full sequence and experimental environment.

COMMON BUILDING BLOCKS

One alphabet, enormous variety.

Proteins commonly use 20 encoded amino acids. Reordering even a short chain produces a different primary sequence.

CONFORMATIONAL ENSEMBLE

Shape is more than a static model.

Hydrogen bonding, charge, hydrophobic effects, backbone flexibility, and disulfide bridges can favor different conformations.

↯

CELL SIGNALING

Binding starts a conversation.

Many peptide signals bind cell-surface receptors, which can relay information through intracellular messengers and kinase cascades.

1×

STEPWISE SYNTHESIS

Built one residue at a time.

Solid-phase peptide synthesis anchors a growing chain to a support so amino acids can be added sequentially.

SEQUENCE-TO-SIGNAL MODEL

How a research question moves from molecule to measurement.

EXPLORE CELL SIGNALING ↗

01PRIMARY SEQUENCE

Which residues, in what order?

→

02CHEMICAL PROFILE

Charge, polarity, and hydrophobicity.

→

033D ENSEMBLE

Flexible shapes available to the chain.

→

04TARGET INTERACTION

Recognition, affinity, and selectivity.

→

05ASSAY READOUT

The measured response in a defined model.

Conceptual research map only. A category or binding observation does not establish a health benefit, treatment, safety, or intended use.

PEPTIDE ARCHITECTURE / 03

Small chains.
Complex signals.

Peptides are short chains of amino acids joined by peptide bonds. Their sequence, length, charge, and three-dimensional conformation shape how they behave in laboratory models.

Hydrophobic Polar Charged

Illustrative amino-acid chain—not a product-specific sequence.

PRIMARY STRUCTUREN-TERMINUS → C-TERMINUS

01020304050607

01 / STRUCTURE–FUNCTION

Sequence variants

Researchers compare residue substitutions, truncations, cyclization, and conjugation to study how structure changes an observed interaction.

02 / BINDING KINETICS

Affinity is not the whole story

Association, dissociation, receptor selectivity, and experimental context all influence how binding data are interpreted.

03 / MOLECULAR STABILITY

Peptides can change over time

Proteolysis, oxidation, deamidation, adsorption, precipitation, and aggregation are distinct research considerations.

Research areas describe subjects of laboratory investigation—not established health benefits, treatments, or intended uses.

RESEARCH READING / 04

Go deeper than a product name.

Authoritative starting points for understanding peptide chemistry, cell signaling, synthesis, stability, and regulatory status. Search all peptide guides → Browse free learning resources →

FOUNDATIONS · NCBI

From amino-acid sequence to three-dimensional shape

Learn how peptide bonds create a directional chain and how residue chemistry and noncovalent interactions influence molecular structure.

Open NCBI chapter ↗

SIGNALING · NCBI

How peptides communicate with cells

A clear introduction to peptide hormones, neuropeptides, growth factors, receptors, and intracellular signal relay.

Explore cell signaling ↗

HISTORY · NOBEL PRIZE

Building peptide chains on a solid support

How Merrifield's stepwise solid-phase method changed peptide synthesis and made automated chain construction possible.

Read the Nobel overview ↗

STABILITY · PEER REVIEWED

Why peptide molecules can change

An overview of sequence- and environment-dependent oxidation, hydrolysis, adsorption, precipitation, and aggregation.

Read on PubMed Central ↗

TERMINOLOGY · RESEARCH

Peptide versus protein is not a hard wall

Scientific and regulatory communities use overlapping size conventions, so context matters more than one universal residue cutoff.

Review the terminology ↗

REGULATORY STATUS · FDA

Research status is not drug approval

Being studied, listed as research material, and FDA-approved are different statuses. Drugs@FDA is the live source for approved drug records.

Check Drugs@FDA ↗

Pentapeptide-18

Identity first, claims kept in scope.

What researchers have actually studied.

Pentapeptide-18 catalog questions

Wholesale kits.
Direct catalog pricing.

Wholesale Kits.
Ten vials each.

A faster way into the catalog.

Start with a few catalog highlights.

Lyophilized now.
Reconstituted for research.

Find the right peptide, faster.

Shop individual research vials.

What customers say
about the experience.

From cart
to tracking.

New to Bitcoin?
Follow one clear path.

Coinbase

Cash App

Kraken

Exodus

Peptide science,
mapped visually.

A chain with direction.

One alphabet, enormous variety.

Shape is more than a static model.

Binding starts a conversation.

Built one residue at a time.

How a research question moves from molecule to measurement.

Small chains.
Complex signals.

Sequence variants

Affinity is not the whole story

Peptides can change over time

Go deeper than a product name.

From amino-acid sequence to three-dimensional shape

How peptides communicate with cells

Building peptide chains on a solid support

Why peptide molecules can change

Peptide versus protein is not a hard wall

Research status is not drug approval

Looking for something specific?

Limited-time savings on complete kits of ten.

Member access

Pentapeptide-18

Identity first, claims kept in scope.

What researchers have actually studied.

Pentapeptide-18 catalog questions

More in Cosmetic

Wholesale kits.Direct catalog pricing.

Wholesale Kits.Ten vials each.

Limited-time pricing on complete kits of ten.

Find the right peptide, faster.

Shop individual research vials.

New to Bitcoin?Follow one clear path.

Coinbase

Cash App

Kraken

Exodus

Peptide science,mapped visually.

A chain with direction.

One alphabet, enormous variety.

Shape is more than a static model.

Binding starts a conversation.

Built one residue at a time.

How a research question moves from molecule to measurement.

Small chains.Complex signals.

Sequence variants

Affinity is not the whole story

Peptides can change over time

Go deeper than a product name.

From amino-acid sequence to three-dimensional shape

How peptides communicate with cells

Building peptide chains on a solid support

Why peptide molecules can change

Peptide versus protein is not a hard wall

Research status is not drug approval

Wholesale kits.
Direct catalog pricing.

Wholesale Kits.
Ten vials each.

New to Bitcoin?
Follow one clear path.

Peptide science,
mapped visually.

Small chains.
Complex signals.