Research Peptide FAQ

Testing scope and results are lot-specific. Available methods, laboratory information, specifications, results, and release status are stated in the corresponding documentation. Purity does not by itself establish compound identity, sterility, safety, efficacy, or suitability for human or veterinary use.

Testing scope and results are lot-specific. Available methods, laboratory information, specifications, results, and release status are stated in the corresponding documentation. Purity does not by itself establish compound identity, sterility, safety, efficacy, or suitability for human or veterinary use.

HPLC can report chromatographic purity under the stated method and conditions. It does not by itself establish identity, sterility, safety, efficacy, or suitability for human or veterinary use. Review the applicable lot documentation for the methods, laboratory information, specifications, results, and release status actually reported.

LC-MS (Liquid Chromatography–Mass Spectrometry) confirms compound identity by measuring the observed molecular mass of the compound and comparing it to the theoretical molecular weight calculated from the amino acid sequence. Agreement between observed and theoretical mass within instrument tolerance (typically ±0.5 Da) confirms that the compound has the correct primary sequence.

This is critical because two peptides can appear identical by HPLC purity percentage yet have entirely different sequences — for example, a scrambled sequence or deletion mutant. LC-MS identity confirmation catches these errors that HPLC alone cannot detect. Our COAs document both the theoretical MW and the observed MS result for every tested batch.

Testing scope is lot-specific. Endotoxin or sterility status is reported only when the released lot documentation includes that assay; absence of a result is not evidence that testing occurred.

Released lots are tracked by an internal lot identifier across receiving, documentation review, the written release decision, and order allocation.

Research peptides are synthesized using Solid-Phase Peptide Synthesis (SPPS), the standard method for producing defined amino acid sequences at laboratory and commercial scale. In SPPS, amino acids are added sequentially to a resin-bound growing chain using protected amino acid building blocks. After synthesis is complete, the peptide is cleaved from the resin, deprotected, and purified by HPLC to remove deletion sequences, truncations, and synthesis impurities.

The final purified peptide is then characterized by analytical HPLC and LC-MS before lyophilization (freeze-drying). Lyophilization removes solvent and produces a stable dry powder that is significantly more stable than peptide solutions for long-term storage and shipping.

Approved research accounts may request available lot documentation before ordering. Documents are provided only for released material and only when the corresponding record exists.

Orders are prepared through our Houston-area fulfillment operations. OligoPoly Laboratories is headquartered in Rosharon, Texas, and ships from within the United States rather than re-shipping from an overseas warehouse.

Orders are processed within 1-3 business days through our Houston-area fulfillment operations. Domestic US delivery via USPS Priority Mail or UPS typically takes 1–3 additional business days, depending on your location. Most US orders arrive within 2–5 business days of order placement.

Expedited shipping options are available at checkout for faster delivery. OligoPoly Laboratories currently ships to U.S. addresses only.

No. OligoPoly Laboratories currently ships to U.S. addresses only.

Important: The buyer is solely responsible for compliance with all local laws and import regulations governing the purchase, importation, and use of research compounds in their country or jurisdiction. Research-use-only status and permitted compound categories vary by country. Please confirm regulatory status in your jurisdiction before ordering.

Yes. All orders are shipped in plain, unmarked outer packaging with no indication of contents on the outside of the package. The shipping label uses our business address without product-specific descriptions. Inner packaging is laboratory-standard with sealed vials in protective foam or bubble wrap to ensure safe transit.

The checkout page displays the payment methods currently available for your cart. Current checkout options may include debit and credit cards, PayPal, Apple Pay, Google Pay, and Cash App Pay, depending on browser support, product class, processor availability, and order details.

For institutional, bulk, or alternative payment arrangements, contact our support team before ordering.

Yes. Bulk pricing is available for orders of 5+ units of a single compound or for institutional procurement. Contact us via our support page with your compound requirements, quantities, and institution details for a custom quote. We work with independent research groups, university labs, and biotechnology companies on ongoing supply arrangements.

Due to the nature of research compounds and strict handling and storage requirements, we are unable to accept returns of opened vials. If you receive a damaged shipment, an incorrect item, or a product with a defective seal, please contact us within 5 business days of receipt with photos of the issue and we will arrange a replacement shipment at no additional cost.

Please review our full refund policy for complete details on eligible claims and resolution procedures.

Storage recommendations for lyophilized (freeze-dried) research peptides:

• Short-term (up to 3 months): Store at 2–8°C (standard laboratory refrigerator). Keep vials sealed and protect from light and moisture.
• Long-term (3–24 months): Store at −20°C. Seal vials with parafilm if stored near other volatile compounds. Allow vials to equilibrate to room temperature before opening to minimize moisture condensation.
• Avoid: Repeated freeze-thaw cycles, exposure to moisture, direct light, and high temperatures.

Most lyophilized peptides are stable for 12–24 months when stored correctly at −20°C. Stability varies by compound — see our peptide storage guide for compound-specific recommendations.

Yes. Lyophilized (freeze-dried) research peptides are highly stable at room temperature during normal transit periods. Most peptides can tolerate several days or even a week at ambient temperature without significant degradation of the lyophilized cake, provided the vial seal remains intact and the compound was not exposed to moisture or light.

Upon receipt, place vials in appropriate storage (2–8°C for short-term, −20°C for long-term) as soon as possible. If you have concerns about transit conditions for a specific shipment, contact us and we can advise on whether analytical re-testing is warranted.

This is a very common observation — completely normal. Research peptides are dispensed in milligram quantities, which are extremely small amounts of material. A 5mg vial will appear as a very thin film, small disc, or barely visible white powder at the bottom of a standard vial. At these quantities, 5mg is roughly a few grains of fine salt by visual comparison.

The correct way to verify quantity is via the COA, not by visual inspection or weighing (vial tare weight variation exceeds peptide mass at these quantities). Quantity and purity for a given lot are recorded on that lot’s certificate of analysis. If you have a concern about a specific batch, contact us with your lot number and we can provide additional documentation.

The public catalog is maintained according to current product-review status. Available listings are organized by product class and documentation pathway rather than by medical or consumer-use claims.

• Nutrition: wellness research materials and everyday health products with research material-facing labels and product documentation.
• Research Products: research-use materials with RUO labeling, batch documentation, and COA access where applicable.
• Documentation: COA verification, quality standards, storage and handling references, and support resources for current catalog items.

Use the research catalog or Peptide Finder to search currently available public listings.

Some pages are educational or analytical references and do not mean that a compound is available for public checkout. Public availability depends on current product-review status, documentation, labeling, and intended-use controls.

If an item is not listed in the live catalog or cannot be added to cart, it is not available for public purchase through the site.

BPC-157 and TB-500 are the two most studied tissue repair peptides in preclinical research, each working through distinct primary mechanisms:

• BPC-157 (Body Protection Compound-157): 15-amino acid pentadecapeptide. Works primarily through VEGF upregulation, nitric oxide synthase (NOS) activation, and fibroblast signaling. Also studied for gastrointestinal mucosal protection.
• TB-500 (Thymosin Beta-4 fragment): Active fragment of Thymosin Beta-4. Works primarily through G-actin sequestration and cell migration via the LKKTET actin-binding domain. Promotes cytoskeletal dynamics and cell motility.

The two peptides are often co-studied in recovery research protocols because their mechanisms are complementary rather than redundant. Available as individual compounds or as our BPC-157 + TB-500 Blend. See our BPC-157 vs TB-500 comparison for detailed mechanistic analysis.

Catalog availability is reviewed against product class, intended use, labeling, documentation, and current compliance status. Items can be withheld from public purchase while documentation, labeling, supplier records, or legal review are updated.

For institutional procurement or documentation questions, contact support before ordering so the request can be routed through the appropriate review path.

GHK-Cu (Glycine-L-Histidine-L-Lysine : Copper) is a naturally occurring tripeptide-copper complex found in human plasma. In research, GHK-Cu is studied for its roles in:

• Collagen I and III synthesis regulation and ECM remodeling
• Matrix metalloproteinase (MMP-2, MMP-9) regulation
• Fibroblast and keratinocyte activation and proliferation
• Hair follicle cycling and follicle biology research
• Wound healing signaling and angiogenesis
• Anti-inflammatory and oxidative stress modulation

GHK-Cu has high affinity for Cu²⁺ ions and forms stable complexes that interact with integrin receptors and matrix metalloproteinases, making it a widely studied compound in tissue biology and dermal repair research.

Research Research Panels are pre-assembled bundles of complementary compounds designed for multi-mechanism research protocols. Each compound in a Research Panel is tested and documented individually before bundling.

Available Research Panels include:

• Starter Research Panel: BPC-157 + TB-500 + GHK-Cu (foundational recovery + tissue remodeling)
• Recovery Support Research Panel: BPC-157 + TB-500 + ARA-290
• Longevity Research Panel: SS-31 + Epitalon + Pinealon + GHK-Cu
• Cognitive Research Panel: Semax + Selank + Dihexa + Pinealon
• GH Axis Research Panel: CJC-1295 + Ipamorelin + Tesamorelin
• Metabolic Research Panel: Multi-compound metabolic pathway bundle

Every compound in every Research Panel ships with its own batch-specific COA. View the full Research Panels catalog at Research Research Panels.

NAD+ (Nicotinamide Adenine Dinucleotide) is an essential coenzyme present in all living cells, studied in research for:

• Sirtuin (SIRT1–SIRT7) activation — NAD+-dependent deacetylases linked to metabolic regulation and cellular aging
• PARP pathway and DNA damage response research
• Mitochondrial electron transport chain and oxidative phosphorylation
• Cellular energy metabolism and ATP production modeling
• NAD+ decline in aging models and longevity pathway research
• Circadian biology and metabolic rhythm regulation

NAD+ levels decline with cellular age in many tissue models, making it a primary tool compound in cellular aging and longevity research.

Epitalon (Epithalon) is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly, originally derived from epithalamin research (a polypeptide extract from the pineal gland). Key research applications:

• Telomerase (hTERT) activation and telomere length maintenance research
• Replicative senescence and cellular aging pathway studies
• Pineal gland melatonin synthesis and circadian regulation research
• Antioxidant pathway modulation in cellular aging models
• Peptide bioregulator activity and minimal-sequence peptide pharmacology

Its short tetrapeptide structure makes it useful for studying minimal-sequence peptide bioregulator activity in cellular aging and longevity research contexts.

Use the published lot-documentation resources and the lot identifier shown on released material. Available methods, laboratory information, specifications, results, and release status are stated only in the corresponding documentation. Contact support with the order and lot identifiers if an expected record cannot be located.

A complete OligoPoly Laboratories batch COA includes:

• Compound name and molecular formula
• Lot/Batch number — unique identifier for this production run
• HPLC purity percentage with full chromatogram data
• LC-MS molecular weight — observed vs. theoretical mass
• Testing date
• Testing laboratory identification
• Storage conditions for the compound
• Appearance — visual description of the lyophilized material

COAs are issued per lot and correspond to the material in that lot.

All analytical testing is performed by independent, accredited third-party laboratories — not by OligoPoly Laboratories in-house. Using independent external laboratories eliminates supplier bias and ensures testing is performed by organizations with no commercial interest in the result.

Laboratory names and contact information are identifiable on individual COA documents. We do not publish laboratory names publicly, but they are documented on every COA and verifiable by researchers who receive our products. Accreditation status of our testing partners is available on request.

Released materials are tracked using the applicable lot identifier across receiving, documentation review, release status, and order allocation. The available record for a specific lot controls; missing documentation does not prove a testing result or release status.

A verification code is meaningful only when it resolves to the corresponding released-lot record. If a record is unavailable, contact labs@oligopolypeptides.com with the lot number; do not treat a code by itself as evidence of testing.

No. OligoPoly materials are supplied strictly for qualified laboratory research and are not intended for human or veterinary use, consumption, diagnosis, treatment, or clinical application.

Research Use Only (RUO) is a regulatory classification for laboratory materials that have not received approval for human therapeutic, diagnostic, or food/cosmetic use. RUO materials are intended exclusively for basic research, preclinical studies, in vitro testing, and laboratory investigation conducted by qualified scientists in appropriate research settings.

RUO classification does not imply any deficiency in product quality — it refers to the intended use context and regulatory pathway. OligoPoly Laboratories RUO peptides are produced to rigorous purity standards appropriate for laboratory research applications.

OligoPoly Laboratories research peptides are intended for qualified researchers including: academic scientists, university laboratory personnel, independent research professionals, biotechnology and pharmaceutical company researchers, and other individuals working in legitimate laboratory research settings.

By completing a purchase, buyers confirm they are qualified researchers, that the purchased compounds will be used exclusively for lawful laboratory research purposes, and that they are aware of and compliant with all applicable laws and regulations governing the purchase, possession, and use of research compounds in their jurisdiction.

Research peptides that are classified as Research Use Only (RUO) and not scheduled controlled substances are generally legal to purchase, possess, and use for legitimate laboratory research purposes in the United States. OligoPoly Laboratories sells compounds that are not listed as controlled substances under current US federal law.

Important: Buyers are solely responsible for compliance with all applicable federal, state, and local laws governing the purchase, importation, possession, and use of research compounds. Regulations can vary by jurisdiction and change over time. OligoPoly Laboratories does not provide legal advice. Consult your institutional legal counsel or applicable regulatory authority if you have questions about compliance in your specific jurisdiction.

Our support team is available to assist with:

• COA requests and verification
• Order status and shipping inquiries
• Technical questions about storage, reconstitution, and handling
• Bulk pricing and institutional procurement
• Custom synthesis inquiries

Contact us via our support page. For urgent order issues, include your order number in your message. For COA requests, include the compound name and desired lot number. We aim to respond to all inquiries within 1 business day.