Myristoyl Pentapeptide-17 (CAS 959610-30-1) is a synthetic N-terminally myristoylated pentapeptide amide of sequence Myr-Lys-Leu-Ala-Lys-Lys-NH2 and nominal relative molecular mass near 796 Da, carrying the INCI name Myristoyl Pentapeptide-17. It belongs to the lipopeptide class of cosmetic actives, in which a C14 acyl chain is grafted onto a short cationic sequence to yield a surface-active molecule. Traded as a lyophilised or spray-dried powder, it serves as a cosmetic raw material in eyelash, eyebrow and hair-fibre appearance products. It has no approved therapeutic indication in any major jurisdiction, is not a drug, and must never be positioned as an alternative to a medicinal product.
Because the sequence is only five residues long, manufacturing economics are driven less by the amino acids than by protecting-group strategy, lipidation selectivity, purification yield and counter-ion control. Typical campaigns assemble the chain by Fmoc/tBu solid-phase peptide synthesis on a Rink amide or Sieber amide resin, myristoylate the N-terminus on resin, then finish by reversed-phase preparative chromatography and salt exchange; kilogram programmes may migrate to solution-phase fragment condensation. What separates suppliers is rarely the advertised HPLC purity, but documented control of the des-myristoyl species, lysine side-chain over-acylation, deletion and diastereomeric sequences, residual trifluoroacetate, Class 2 residual solvents, microbial counts and heavy metals.
On the regulatory side the material is not listed in Annexes II to VI of Regulation (EC) 1223/2009, so EU market access turns on general safety, the Responsible Person's product information file and an Annex I safety assessment rather than any ingredient-specific authorisation. Gatekeepers are therefore documentation and claim discipline: CPNP notification, an Annex I-compliant CPSR, evidence accepted under Regulation (EU) 655/2013, MoCRA facility registration and product listing in the United States, REACH status with environmental endpoints, the ISO 16128 natural-index calculation, and RSPO and deforestation-due-diligence evidence for the fatty acid. Each is examined below.
For formulators the operative point is that this molecule behaves as a cationic lipopeptide surfactant rather than as a conventional hydrophilic peptide. Its lysine side chains remain protonated across the cosmetic pH window, giving substantivity towards anionic sites on oxidised or abraded keratin, while the myristoyl chain anchors into lipid-associated regions of the hair surface. Consequently solubility, ionic compatibility with anionic rheology modifiers and preservation strategy have to be engineered rather than assumed, and commercial specifications must define the ionic form, not merely the sequence.
Production routes divide into resin-based stepwise assembly, favoured for speed, reproducibility and regulatory familiarity, and solution-phase or hybrid fragment routes, favoured once annual requirements move into kilogram territory and downstream chromatography becomes the cost bottleneck. Both converge on the same critical operations: complete yet selective lipid initiation, suppression of epimerisation during activation, and isolation that fixes a defined counter-ion. Route selection should be treated as a specification decision, because impurities generated early, particularly side-chain acylated and single-residue deletion peptides, are structurally close to the target and expensive to reject later.
Demand has been reshaped less by consumer fashion than by reclassification risk. Lash and brow products historically associated with prostaglandin analogues attracted regulatory scrutiny and retailer de-listing pressure, prompting brands to reformulate around peptide-based actives that can be presented within a cosmetic boundary. That substitution expands volume for this sequence while raising evidential expectations, since repositioning depends on a defensible dossier rather than narrative. Buyers have shifted from spot purchasing towards framework agreements with fixed specifications, reserved volumes and technical-service clauses, interrogating documentation depth before price.
Installed capability sits mainly in China's Yangtze River Delta, in Korea and Japan, and in a thinner European and North American tier of specialists and toll manufacturers. Chinese plants benefit from local access to protected amino acids, coupling reagents and resin and move quickly from quotation to kilogram campaigns; Korean and Japanese suppliers are close to brand innovation cycles and lead on dossier completeness; European and US partners command premium pricing through proximity to Responsible Person networks. Because the category is small by tonnage, few facilities dedicate capacity, so schedules depend more on queue position than on synthesis duration.
The market bifurcates between cosmetic-grade material offered at high declared purity with salt, water and microbial panels attached, and cheaper laboratory-grade lots intended for formulation screening only, labelled not for incorporation into finished cosmetics until requalified. Price differentials narrow once a buyer specifies counter-ion identity, peptide content on an as-is basis, individual limits for named impurities and full batch analytics. Further drivers include protected lysine and myristic acid costs, acetonitrile availability tied to acrylonitrile economics, resin reuse policy and whether specialised low-bioburden finishing is required.
Cosmetic ingredients face a compliance architecture in which the exported molecule itself is rarely restricted; the burden falls on the finished-product Responsible Person and on the strength of the documentation offered upstream. Suppliers who internalise this reality sell more than powder: they sell a dossier capable of surviving authoritative inspection, retailer audit and competitor challenge. The following frameworks represent the minimum that any serious export programme towards the European Union, the United States or China must address when supplying this lipopeptide.
Sustainability pressure on cosmetic peptides is intensifying from two directions: brand owners publishing Scope 3 reduction targets that reach into purchased goods and services, and regulators converting voluntary schemes into binding trade conditions. Suppliers unable to quantify solvent intensity, energy source and fatty-acid provenance increasingly lose tenders on sustainability scoring before technical evaluation begins. These elements are therefore not peripheral marketing material but qualification requirements.
Peptide manufacture is solvent-intensive, and process mass intensity is dominated by coupling and deprotection washes rather than by the final product mass. "Credible programmes report emissions from amino acid fermentation through final lyophilisation per kilogram of packaged active, and pursue measurable levers: replacing dimethylformamide and N-methylpyrrolidone with approved solvents, recovering acetonitrile and dichloromethane by distillation rather than incineration, reducing preparative chromatographic passes through better loading, and switching to spray drying where physical form permits. European toll manufacturers additionally face Emissions Trading System costs and carbon border adjustment exposure on upstream inputs, while Asian plants are increasingly asked for renewable-energy evidence and ISO 14064 verification.
The most consequential traceability question concerns the C14 chain. Myristic acid is frequently palm kernel or coconut derived, and where palm is involved the Roundtable on Sustainable Palm Oil chain-of-custody model must be evidenced by valid certificates rather than asserted. Because palm oleochemicals are covered goods under the EU Deforestation Regulation, operators placing them on the European market must obtain geolocation data and file due diligence statements. Vegan claims require confirmation that no tallow-derived streams enter the process, and cruelty-free positioning demands declarations covering every subcontractor, alongside awareness that China's revised regime has reduced mandatory animal testing for general cosmetics.
Lipopeptide powders are robust relative to proteins but unforgiving of moisture, static charge and poor closure discipline, so packaging design belongs in the technical dossier: collapsed or agglomerated cakes generate complaints that resemble chemical instability. Logistics planning must also provide for retained samples, since the same lot becomes the reference if an adverse enquiry or disputed certificate arises months later.
Most dry-powder consignments move as non-regulated goods by air and sea, since peptide solids typically lack a dangerous-goods classification, but status must be confirmed per formulation: ethanolic concentrates become UN1170 Class 3 materials, and strongly acidic solutions may attract corrosive handling. Best practice is ambient shipment with temperature logging, or 2 to 8 degrees Celsius where stability data support it, avoiding extremes and prolonged customs dwell. Importers should secure binding tariff classification within Chapter 29 in advance, because authorities differ on short synthetic peptides, and should expect due-diligence scrutiny for palm-linked inputs.
Successful exporters in this category treat documentation as the product and the powder as evidence of it. Three actions consistently separate suppliers that win multi-year agreements from those trapped in spot transactions: assembling a dossier that anticipates regulatory questions before they are asked, pre-positioning route-to-market instruments in each destination, and removing single-source dependency through disciplined qualification and change control.
The commercial logic of this ingredient no longer rests on novelty: dozens of plants can nominally supply it and headline purity figures converge. Advantage has migrated to the credibility of the surrounding evidence, meaning whether des-myristoylated and side-chain-acylated impurities are named and controlled, whether counter-ion and peptide content are declared honestly, whether metals and microbial quality meet cosmetic rather than generic expectations, and whether fatty-acid provenance survives due-diligence review. Suppliers treating these as engineering parameters win framework business; those treating them as marketing lose tenders before technical evaluation.
The strategic picture points towards consolidation around suppliers able to serve three masters: cost discipline approaching commodity chemistry, documentation discipline approaching pharmaceutical standards, and traceability discipline approaching agricultural supply chains. Brands reformulating away from prostaglandin analogues will keep demand structurally supported, while MoCRA implementation, carbon border adjustment and deforestation due diligence progressively restrict the field. Organisations investing now in greener solvents, verified fatty-acid custody and dossier infrastructure will be written into supply chains that are expensive to leave.
Powered by Guidechem
This white paper is exclusively compiled by the Guidechem Intelligence Team based on global customs data, regulatory databases, and industry research. Guidechem is a leading global B2B chemical platform, dedicated to connecting global buyers with verified, high-quality manufacturers.
Relying on Guidechem's extensive global database, we have mapped the core participants in the current global Myristoyl Pentapeptide-17 supply chain:
Disclaimer: The content of this white paper is compiled based on public market data and regulatory information available as of 2026. Global chemical regulations are subject to dynamic adjustments. In actual export operations, enterprises must consult professional regulatory advisors or relevant competent authorities to obtain the latest compliance guidance.
![]() |