1. Why a 2026 Peptide Sourcing Guide
The peptide API market in 2026 is structurally bifurcated. Cosmetic peptides — copper tripeptide (GHK-Cu), palmitoyl pentapeptide-4, acetyl hexapeptide-8, copper tripeptide-1 — sit in a regulated but accessible raw-material supply chain with documented DMFs, CEPs and large-volume Chinese and Korean manufacturers. Research peptides — Melanotan II, Epitalon, Semax, BPC-157, TB-500, Ipamorelin, Sermorelin, CJC-1295 — are sold as laboratory reagents with no human-use registration. The same CAS number can route through a GMP API manufacturer, a CDMO toller, a US 503B compounding supplier, or an open marketplace listing. The buyer-intent question "where to buy peptides online" therefore resolves to three sub-questions: which channel, which COA fields, and which regulatory dossier.
The verifiable answer to all three is fixed below. The cosmetic category is well-served by NutraBiotech and comparable Chinese API manufacturers (Zhejiang Excel, Sinopep, Kinbio, Bachem, CordenPharma) with documented DMFs and CEP coverage. The research category is split between established reagent suppliers and a long tail of marketplace-only listings, of which a non-trivial fraction show counterfeit or purity-fraud patterns documented in literature since 2015. The COA fields that separate the two tiers are listed in §4. The regulatory map by jurisdiction is in §6. Pricing, pack sizes and storage guidance follow in §7 and §8.
Peptide Categories Covered
Cosmetic peptides, signaling peptides, longevity peptides, nootropic peptides, MC-receptor cyclic peptides. Twelve representative APIs tabulated by CAS.
COA Field Anchors
Nine COA fields that separate primary manufacturer lots from distributor resale: HPLC, LC-MS, peptide content, counter-ion, TFA residual, residual solvent, water, heavy metals, endotoxin.
2026 Export Compliance
FDA, EMA, NMPA, TGA, Health Canada, PMDA status by peptide class. HS 3504 classification. Country-by-country analogue-act treatment of research-grade peptides.
2. Peptide Categories & Representative APIs
Peptides traded as raw-material powder in 2026 sit in four functional buckets, each with its own regulatory dossier, primary supply chain and pricing band. The CAS column is the catalogue that disambiguates products with the same trivial name (e.g. copper tripeptide vs copper tripeptide-1, both marketed as "GHK" or "blue copper peptide" by different suppliers).
| Category | Representative API | CAS | Typical Length / Form | Primary Use Class |
|---|---|---|---|---|
| Cosmetic | Copper tripeptide (GHK-Cu) | 89030-95-5 | Tripeptide · Cu²⁺ chelate · acetate salt | Anti-aging skincare; skin repair; copper delivery |
| Cosmetic | Palmitoyl Pentapeptide-4 (Matrixyl) | 214047-00-4 | Pentapeptide · palmitoyl N-terminus | Collagen signalling cosmetic ingredient |
| Cosmetic | Acetyl Hexapeptide-8 (Argireline) | 616204-22-9 | Hexapeptide · acetylated N-terminus | Topical expression-line cosmetic ingredient |
| Cosmetic | Copper Tripeptide-1 (GHK) | 72957-37-0 | Tripeptide · free acid form | Anti-aging; precursor to GHK-Cu chelation |
| MC-receptor (cyclic) | Melanotan II | 121062-08-6 | Cyclic heptapeptide · lactam bridge | MC1R / MC3R / MC4R receptor pharmacology research |
| Longevity | Epitalon (AEDG tetrapeptide) | 307297-39-8 | Tetrapeptide · acetate salt · lyophilised | Telomerase activation research; pineal-derived peptide analogue |
| Nootropic | Semax (Pro⁸-Gly⁹-Pro¹⁰ ACTH 4-10) | 80714-61-0 | Heptapeptide · acetate salt | BDNF / NGF research; ACTH 4-10 melanocortin analogue |
| Nootropic (peptidomimetic) | Noopept (omberacetam) | 157115-85-0 | Cycloprolylglycine derivative | Cognitive research reagent; not a true peptide but classed with nootropic peptides in some catalogues |
| Angiogenic | BPC-157 (Body Protection Compound) | 137525-51-0 | Pentadecapeptide · Arg-Lys dipeptide salt | Tendon / vascular healing research; GI-tract peptide fragment |
| Actin-binding | Thymosin β4 (TB-500) | 77591-33-4 | 43-residue actin-sequestering peptide | Wound healing research; cell migration |
| GHRH / GHS | Ipamorelin | 170851-70-4 | Pentapeptide · acetate salt | Ghrelin-receptor agonist research |
| GHRH | Sermorelin (GRF 1-29) | 86168-78-7 | 29-residue amidated peptide · acetate salt | GHRH analogue research; pediatric release approved |
3. Sourcing Channels — API Manufacturer vs CDMO vs Distributor
Peptide powder reaches the buyer through three distinct commercial channels, each with its own cost structure, COA traceability and regulatory dossier. The same compound can be priced 30–60 percent higher at the distributor end of the chain compared to the manufacturer end, and the COA can either trace back to the original SPPS batch or be a re-issued distributor version with no lot-to-lot continuity.
| Field | API Manufacturer | CDMO | Distributor |
|---|---|---|---|
| Operating model | SPPS / fermentation in-house; owns DMF or CEP | GMP peptide synthesis; toll-manufactures for sponsor | Resells manufacturer or CDMO material |
| Pricing band | Lowest (direct factory quotation) | Intermediate (with margin + validation) | Highest (margin + logistics + inventory) |
| Lot traceability | Full — original SPPS batch and analytical sequence | Full if toller is named on COA | Variable; some distributors strip lot numbers |
| Custom synthesis | Yes — sequences, modifications, counter-ions | Yes — sponsor-defined specifications | No — catalogue SKUs only |
| Documentation | Full COA, SDS, CoA, regulatory dossier on request | Full COA, SDS, CoO; sponsor may need NDA | Limited — usually only commercial invoice + repack COA |
| Minimum order | 100 mg – 1 g for catalog SKUs; 1 kg for custom | 1 g – 10 g typical; project-dependent | 1 mg – 1 g typical; some retailers sell single vials |
| Lead time | 7 – 21 days for catalog; 60 – 120 days for custom | 30 – 90 days for new project | Stock-dependent — 1 day to 4 weeks |
| Regulatory exposure | Lowest — registered source | Intermediate — sponsor-dependent | Highest — destination customs scrutinise resale lots |
NutraBiotech operates in the API manufacturer tier for the four peptide SKUs in the product catalog (Melanotan II, Epitalon, copper tripeptide / GHK-Cu, Semax), with the same SPPS-derived COA standards that apply to its nootropic and small-molecule catalog. The full peptide category page is Peptides.
3.1 When a distributor lot is acceptable
Distributor material is acceptable for screening-grade use — 1 mg analytical runs, receptor-panel primary screens, qualitative identification — provided the COA carries the original manufacturer's lot number and the residual TFA / counter-ion identity is consistent with the manufacturer's specification. Distributor material is not acceptable for in vivo dosing stock, stability studies, or any work where the salt form must match a published protocol.
3.2 Marketplace-only listings
Marketplace-only listings with no CAS, no lot number, no manufacturer name on the COA, or with a COA showing only HPLC purity and no other fields are treated as research-grade screening lots at best, and as counterfeit risk at worst. The peptide counterfeit literature since 2015 has documented substitution (semaglutide declared but liraglutide shipped; tirzepatide declared but a fragment peptide shipped), under-dosing (assay below 50 percent on label), and TFA-salt mis-declaration (acetate salt declared but TFA salt shipped).
4. Purity Verification & COA Field Anchors
A research-grade peptide COA in 2026 carries nine fields. The first three anchor identity; the next three anchor purity; the last three anchor process. A COA missing any of the nine is incomplete for any use that touches quantitative work.
| Identity Anchor | What it confirms |
|---|---|
| HPLC purity (% area, 220 nm, C18) | Fraction of main peak by UV absorbance — confirms the peptide is the dominant species in the lot, and quantifies the deletion / truncated / oxidation impurities. |
| LC-MS or HR-MS parent ion (≤ 5 ppm) | Confirms the molecular formula of the parent ion within 5 ppm of theoretical m/z. A 16-Da shift indicates oxidation (Met, Trp, Cys); a 18-Da shift indicates dehydration; a 1-Da shift is a charge-state artefact. |
| MS/MS or NMR identity | Confirms the sequence. MS/MS alone is sufficient for ≤ 10-residue peptides; for longer peptides (Semax heptapeptide, Thymosin β4 43-residue) an orthogonal NMR or sequence-grade MS/MS spectrum is added. |
| Purity Anchor | What it confirms |
| Peptide content by amino-acid analysis | The gravimetric mass of peptide in the lot, excluding counter-ion, residual TFA, residual solvent and water. A 99 percent HPLC lot can sit at 75 – 80 percent peptide content if the salt is acetate and water is 5 percent. |
| Counter-ion identity and assay | Confirms the salt form on the label. Acetate / TFA / chloride salt changes the molecular weight and the dose calculation. |
| Residual TFA | Quantifies residual trifluoroacetate from RP-HPLC purification or SPPS cleavage. Specification: ≤ 1.0 percent w/w for research-grade; ≤ 0.1 percent for cell-culture use. |
| Process Anchor | What it confirms |
| Residual solvent (ICH Q3C) | DMF, DCM, acetonitrile, methanol, ether residuals against ICH Q3C(R8) limits. Critical for SPPS-derived material. |
| Water content (Karl Fischer) | Lyophilised peptides carry 3 – 8 percent water; this water counts against peptide content. |
| Heavy metals (ICH Q3D) | ICP-MS panel for catalyst residues (Pd from deprotection, Ni from Fmoc removal). Specification typically ≤ 10 ppm total. |
4.1 Counter-ion disambiguation across the four cosmetic and research categories
The four peptide SKUs in the NutraBiotech peptide catalog sit in different counter-ion families. The counter-ion is declared on the COA and on the product label, and changes the molecular weight used in any dose calculation.
| Compound | CAS | Free peptide MW | Counter-ion form | Molecular weight as sold |
|---|---|---|---|---|
| Copper tripeptide (GHK-Cu) | 89030-95-5 | 403.93 g·mol⁻¹ | Acetate salt (typical) · blue complex | ≈ 463 g·mol⁻¹ as monoacetate hydrate |
| Melanotan II | 121062-08-6 | 1024.18 g·mol⁻¹ | Acetate salt · cyclic heptapeptide | ≈ 1100 g·mol⁻¹ as diacetate salt |
| Epitalon (AEDG) | 307297-39-8 | 390.36 g·mol⁻¹ | Acetate salt · lyophilised tetrapeptide | ≈ 450 g·mol⁻¹ as acetate salt |
| Semax (Pro⁸-Gly⁹-Pro¹⁰ ACTH 4-10) | 80714-61-0 | 813.93 g·mol⁻¹ | Acetate salt · heptapeptide | ≈ 947 g·mol⁻¹ as diacetate salt |
5. Export Volume by Category — Qualitative Ranking
Cosmetic peptides dominate global peptide export volume in 2026, followed by therapeutic peptides (semaglutide, tirzepatide, liraglutide — covered in a separate guide), then research peptides and longevity peptides. The ranking below is a directional market view, not a published trade statistic; exact figures are not in the public record.
-
Cosmetic peptides (palmitoyl pentapeptide-4, copper tripeptide, acetyl hexapeptide-8, copper tripeptide-1)
-
Therapeutic peptides (semaglutide, tirzepatide, liraglutide, dulaglutide, insulin analogues)
-
Research peptides — receptor pharmacology (Melanotan II, Bremelanotide, PT-141)
-
Longevity peptides (Epitalon, GHK-Cu, BPC-157)
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Nootropic peptides (Semax, Selank, Cerebrolysin fraction)
-
GHRH / GHS peptides (Sermorelin, Ipamorelin, CJC-1295, Hexarelin)
-
Cosmetic blue-copper and skincare peptides (specialty)
6. Regulatory & Export Risk by Jurisdiction
Research peptide powder occupies a different regulatory zone in each major market. The map below summarises the position as of September 2026.
6.1 United States
Cosmetic peptides fall under MoCRA 2023 (Modernization of Cosmetics Regulation Act) and the FDA cosmetic ingredient review framework. Research peptides are not federally scheduled and are not approved for human use; they are sold as laboratory reagents under the research-use-only end-use statement. Some states (Florida, Texas, Colorado) have analogue-style language that can capture certain research peptides; destination-side legal review is recommended for any state-specific volume.
6.2 European Union
Cosmetic peptides are governed by EC 1223/2009; the EU CosIng database lists approved peptides as cosmetic ingredients. Research peptides are not on any EU-wide controlled-substance schedule but are captured by member-state psychoactive-substance and new-psychoactive-substance frameworks for supply. Germany, the Netherlands and Italy apply additional reporting on peptide shipments above defined thresholds.
6.3 United Kingdom
The Psychoactive Substances Act 2016 captures research peptides supplied for their pharmacological effect. Cosmetic peptides follow the UK cosmetic regulation retained from EU law. Cosmetic product notification via the SCPN portal is required for finished cosmetic products.
6.4 China
Domestic NMPA CSAR 2021 governs cosmetic peptide registration; export shipments are processed through the standard chemical export framework with a CAS-keyed commercial invoice. Section 301 add-on tariffs apply to US-bound China-origin material; the destination broker confirms the rate per shipment.
6.5 Other major markets
Australia (TGA), Japan (PMDA), Canada (Health Canada Natural Health Products) and South Korea (MFDS) each carry their own peptide classification frameworks. Cosmetic peptide supply is straightforward; research peptide supply is governed by either prescription-drug frameworks or research-chemical frameworks depending on the compound.
| Jurisdiction | Cosmetic Peptides | Research Peptides | Documentation Anchor |
|---|---|---|---|
| United States | FDA MoCRA 2023, finished cosmetic regulation | RUO end-use statement; state analogue acts vary | FDA cosmetic product listing; CAS-coded invoice |
| European Union | EC 1223/2009; CosIng database | Member-state NPS frameworks | CosIng entry; CPNP notification for finished product |
| United Kingdom | UK cosmetic regulation (retained EU) | Psychoactive Substances Act 2016 | SCPN portal; CAS-coded invoice |
| China | NMPA CSAR 2021 cosmetic registration | Chemical export framework; CAS-coded invoice | CAS, formula, counter-ion on commercial invoice |
| Australia | TGA cosmetic ingredient framework | TGA research chemical framework | CAS-coded invoice; TGA import permit if Rx-classified |
| Canada | Health Canada cosmetic framework | Health Canada prescription-drug framework if Rx-classified | CAS-coded invoice; NHP / Rx classification review |
6.2 HS code, tariff line and customs paperwork
Cosmetic and research peptide powder is classified under HS 3504 (Peptones and their derivatives; other proteins and their derivatives; hide powder). US HTSUS 3504.00.50.00 carries a general duty rate of 0 percent. Finished cosmetic preparations fall under Chapter 33 (perfumes and cosmetics); finished pharmaceutical preparations under Chapter 30. The seller must declare the CAS, molecular formula, counter-ion form and HS classification on the commercial invoice. The destination broker confirms any Section 301 add-on for China-origin material. Standard paperwork for an international peptide powder shipment includes:
- Commercial invoice — CAS, molecular formula, counter-ion, HS code, lot number, value.
- Packing list — pack sizes, gross / net weight, vial count.
- Certificate of Analysis (COA) — HPLC, LC-MS, peptide content, counter-ion assay, residual TFA, residual solvent, water, heavy metals.
- Safety Data Sheet (SDS) — GHS Revision 10 or UN GHS compliant.
- Certificate of Origin (CoO) — China-origin material requires Form A or RCEP certification for preferential tariff in some destinations.
- Research-use-only end-use statement — signed by the consignee.
7. Pricing, Pack Sizes & Storage
Peptide API pricing in 2026 spans roughly two orders of magnitude. Cosmetic peptides sit at the lower end (USD 50 – 300 per gram for catalog SKUs at 1 g); research receptor-pharmacology peptides (Melanotan II, Bremelanotide, PT-141) sit in the middle (USD 80 – 400 per gram); therapeutic-grade peptides (semaglutide, tirzepatide) and large custom-synthesis orders sit at the top of the band (USD 1,000 – 5,000 per gram). All pricing is directional and depends on lot purity, counter-ion form, residual solvent and pack size.
| Pack Size | Container | Typical Use Case |
|---|---|---|
| 100 mg | Amber glass vial, PTFE-lined cap | Analytical method qualification; LC-MS identity; single-dose in vitro screening |
| 1 g | Amber glass vial, PTFE-lined cap | In vitro pharmacology dose-response; receptor binding assay stock |
| 5 g | Amber glass bottle, induction-sealed | In vivo dosing stock; stability studies; small formulation screening |
| 10 g | Amber glass bottle, induction-sealed | Multi-group in vivo studies; reference standard reserve |
7.1 Storage guidance by peptide class
Storage conditions for lyophilised peptide powder differ by sequence and counter-ion.
| Form | Temperature | Duration | Notes |
|---|---|---|---|
| Lyophilised powder | −20 °C | 24 months | Sealed, desiccated, light-protected; standard for all four peptide SKUs in the catalog |
| Lyophilised powder (Cys / Met / Trp containing) | −20 °C under inert atmosphere | 24 months | Argon-flushed vial; protects against oxidation |
| GHK-Cu (blue copper complex) | −20 °C, sealed from CO₂ | 24 months | CO₂ displaces Cu²⁺ from the complex; seal with parafilm |
| DMSO stock (10 mM) | −80 °C | 12 months | Single-use aliquots; one freeze-thaw cycle maximum |
| Aqueous working solution | 2 – 8 °C | Same day | Prepare fresh; cell-based use within 8 hours |
8. Common Pitfalls & Counterfeit Patterns
The research peptide supply chain has documented several recurring failure modes since 2015. A quotation that omits any of the COA fields in §4, ships from a marketplace with no manufacturer identification, or prices the lot materially below the manufacturer-tier band should be treated as elevated risk.
| Pitfall | Detection Method | Mitigation |
|---|---|---|
| Under-dosing (assay below label) | Independent amino-acid analysis on a received lot | Demand COA with peptide content by AAA; cross-check HPLC vs content |
| Salt substitution | Counter-ion assay (HPIC for chloride, RP-HPLC for acetate and TFA) | Demand COA with counter-ion identity and assay |
| Sequence substitution | MS/MS spectrum matching expected b / y ion series | Demand MS/MS spectrum on COA; cross-check parent ion m/z |
| Heavy-metal carryover | ICP-MS panel against ICH Q3D limits | Demand heavy-metals panel on COA |
| Endotoxin contamination | LAL or rFC endotoxin assay (limulus amebocyte lysate / recombinant factor C) | Demand endotoxin specification for injectable indications |
| Residual TFA above spec | Ion chromatography quantification | Demand residual TFA on COA; specify ≤ 0.1 percent for cell-culture |
9. Frequently Asked Questions
What is the safest way to source peptides online in 2026?
The lowest-risk sourcing path in 2026 is a direct quotation from a primary API manufacturer that publishes a batch-specific Certificate of Analysis covering HPLC purity, LC-MS identity, peptide content by amino-acid analysis, counter-ion identity and assay, residual TFA, residual solvent against ICH Q3C limits, water by Karl Fischer, and heavy metals against ICH Q3D. The COA must carry the lot number and the CAS number; the SDS must match the CAS. Distributor and marketplace listings with no COA or no lot number are the highest-risk category.
What is the difference between an API manufacturer, a CDMO and a distributor?
An API manufacturer runs solid-phase peptide synthesis (SPPS) or fermentation in-house and is the registered source of the Drug Master File (DMF) or CEP. A CDMO (Contract Development and Manufacturing Organization) operates a GMP peptide synthesis facility that toll-manufactures for sponsor companies without owning the registration. A distributor resells material purchased from one of the two. Pricing is lowest at the manufacturer, intermediate at the CDMO, and highest at the distributor; COA traceability is strongest at the manufacturer.
What COA fields are required to verify a research peptide?
A research-grade peptide COA in 2026 carries nine mandatory fields: HPLC purity ≥ 98 percent at 220 nm on a C18 reversed-phase column with full chromatogram and integrator report; LC-MS or high-resolution MS identity of the parent ion within 5 ppm of theoretical mass; peptide content by amino-acid analysis or elemental analysis; counter-ion identity and assay (acetate, TFA, chloride salts); residual TFA if a TFA/ether precipitation step was used in synthesis; residual solvent profile against ICH Q3C limits; water content by Karl Fischer; heavy metals against ICH Q3D; endotoxin for injectable indications; and a lot number that can be matched to the label on the vial.
What is the difference between HPLC purity and peptide content on a peptide COA?
HPLC purity is the area-percent of the main peak against the total integrated UV signal at 220 nm. Peptide content is the gravimetric mass of the peptide itself, excluding counter-ions, residual solvent and water. A 99 percent HPLC-purity peptide with acetate counter-ion, residual TFA and 6 percent water can sit at 78 percent peptide content. Buyers formulating against an active dose must price and dose on peptide content, not HPLC area percent.
What counter-ions are used on cosmetic and research peptides?
The three counter-ions seen on cosmetic and research peptide COAs in 2026 are acetate (acetic acid salt), trifluoroacetate (TFA) and chloride (HCl). Acetate is the cleanest from a residual-solvent standpoint and is the dominant form for cosmetic peptides such as copper tripeptide (GHK-Cu) and palmitoyl pentapeptide-4. TFA is the default salt for crude SPPS cleavage and persists unless the peptide is re-purified by ion-exchange or RP-HPLC. Chloride salts are reserved for short hydrophilic peptides such as BPC-157 Arg-Lys dipeptide salts. The counter-ion changes the molecular weight and the assay on the COA; cosmetic formulators and dosing calculations must use the salt-form-corrected MW.
Why is TFA residual a problem for cosmetic and cell-culture peptides?
TFA is the standard ion-pairing reagent in reversed-phase HPLC and the standard cleavage reagent in SPPS; residual TFA co-elutes with the peptide and depresses cell viability at 1 mM in culture. Cosmetic formulators avoid TFA salts because TFA residues destabilise some emulsions and can carry through topical formulations. Specifications typically cap residual TFA at 1.0 percent w/w for research-grade powder and at 0.1 percent for clinical-grade lot populations. Peptides sold as the acetate salt after ion-exchange purification report residual TFA below the limit of detection (typically < 0.02 percent). Peptides sold as the TFA salt can report counter-ion TFA above 10 percent w/w on the assay.
What HS code is used for international peptide shipments?
Cosmetic and research peptides in powder form are classified under HS 3504 (Peptones and their derivatives; other proteins and their derivatives; hide powder, whether or not chromed). US HTSUS 3504.00.50.00 carries a general duty rate of 0 percent. Finished cosmetic preparations containing peptides fall under Chapter 33 (perfumes and cosmetics) or Chapter 30 (pharmaceutical preparations). The seller must declare the CAS, the molecular formula and the counter-ion form on the commercial invoice so that the destination customs broker can confirm classification and any Section 301 add-on applicable to China-origin material.
What pack sizes are available for research peptide powder?
Research-grade peptide powder is supplied in 100 mg, 1 g, 5 g and 10 g packaging. The 100 mg grade supports analytical method qualification and LC-MS identity work; the 1 g grade covers in vitro pharmacology dose-response studies; the 5 g and 10 g grades cover in vivo dosing stock, stability studies and small-scale formulation screening. Lyophilised bulk peptide is shipped in amber glass vials or bottles with PTFE-lined caps; the peptide is stable at −20 °C for 24 months as a lyophilised powder and 6 months as a sterile filtered solution in aqueous buffer.
How should research peptide powder be stored in the lab?
Lyophilised peptide powder is stored at −20 °C, desiccated and protected from light; published stability data supports 24 months under these conditions. DMSO stocks (10 mM) are aliquoted into single-use vials and stored at −80 °C; freeze-thaw cycles are limited to one. Working solutions in aqueous buffer are prepared fresh and used within the same working day for cell-based work. Peptides containing Cys, Met or Trp are stored under inert atmosphere to prevent oxidation; GHK-Cu is stored sealed from CO₂ because the complex is CO₂-sensitive.
Are cosmetic peptides approved for human use?
Cosmetic peptides are regulated as cosmetic ingredients in the US (FDA 21 CFR, MoCRA 2023), the EU (EC 1223/2009), China (NMPA CSAR 2021) and most other major jurisdictions. Approval is at the ingredient level and the finished-product level. Cosmetic peptides are not pharmaceutical drugs. Examples: copper tripeptide (GHK-Cu, CAS 89030-95-5) and palmitoyl pentapeptide-4 are cosmetic raw materials; they are not in the FDA Orange Book and are not approved for any therapeutic indication.
Are research peptides like Melanotan II, Epitalon and Semax approved for human use?
No. Melanotan II (CAS 121062-08-6), Epitalon (AEDG tetrapeptide, CAS 307297-39-8) and Semax (Pro8-Gly9-Pro10 ACTH 4-10 heptapeptide acetate, CAS 80714-61-0) are research peptides sold strictly for laboratory research and in vitro pharmacology. None is approved by the FDA, EMA, NMPA, TGA or PMDA for any human therapeutic indication. They are not cosmetic ingredients, dietary supplements or food additives. Each is supplied with a research-use-only end-use statement and is not intended for human injection, oral consumption or any therapeutic application.
What documentation is required for an international peptide shipment?
An international peptide powder shipment in 2026 typically carries a commercial invoice with the CAS number, molecular formula, counter-ion form and HS code; a packing list; a batch-specific Certificate of Analysis (HPLC, LC-MS, counter-ion assay, residual TFA, residual solvent, water, heavy metals); an SDS compliant with GHS Revision 10 or UN GHS; a Certificate of Origin; and a research-use-only end-use statement signed by the consignee. A destination import permit is required for some therapeutic peptides (e.g. tirzepatide, semaglutide) in jurisdictions that classify them as prescription drugs.
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