Frequently Asked Questions

Every production lot is independently verified to exceed 99% purity through reversed-phase HPLC with UV detection at 214 nm or 220 nm. The reported purity percentage reflects the target peak area relative to all detected peaks. Full analytical data — including the chromatogram — is published directly on each product page before you order.

All testing is conducted by independent, accredited laboratories within the United States. Prism Peptides maintains complete separation between production and verification — we never test our own materials. Each lot undergoes HPLC for purity and ESI-MS for molecular identity confirmation, with results documented in a lot-specific Certificate of Analysis.

Every product page includes a current, dated Certificate of Analysis listing purity, molecular weight, appearance, and methodology. It also includes the full HPLC chromatogram, mass spectrometry identity data, and applicable storage recommendations. The lot number on your vial label corresponds exactly to the published analytical data — complete traceability from order to lab bench.

Each lot is synthesized using standardized solid-phase peptide synthesis protocols and purified via preparative HPLC under optimized conditions. Every lot must meet defined acceptance criteria for purity (≥99% by HPLC), identity (confirmed by MS), and physical appearance before release. Lots that fall below specification are rejected outright — not reworked, blended, or shipped.

Orders placed before 2:00 PM EST on business days are dispatched the same day. We maintain ready inventory of all catalog items to eliminate production delays. A tracking number is emailed once your shipment is processed — same-day means same-day, with no hidden processing windows.

We offer USPS First Class (3–5 business days), USPS Priority Mail (2–3 business days), and USPS Priority Mail Express (1–2 business days). All peptides ship as lyophilized powders, which are stable at ambient temperature during transit. Transfer to proper storage conditions (−20°C or colder) immediately upon receipt.

At this time, Prism Peptides ships exclusively within the United States. Orders with international shipping addresses cannot be fulfilled and will be cancelled with a full refund. We do not ship to freight forwarders, mail forwarding services, or APO/FPO/DPO addresses.

Due to the nature of research chemicals, all sales are final. We do not accept returns or exchanges except where product arrives damaged or materially defective. In such cases, contact us within 72 hours of delivery with photographic documentation. Order cancellations are accepted within 2 hours of placement or before a tracking number is generated, whichever comes first.

Store lyophilized peptides at −20°C or colder in their original sealed vials. For storage exceeding six months, −80°C is recommended. Keep vials in a desiccated environment, protect from light, and avoid repeated temperature cycling. Sequence-dependent storage notes are included in each COA where applicable.

Properly stored lyophilized peptides (sealed, −20°C) typically remain stable for 24–36 months from manufacture. Sequences containing oxidation-sensitive residues such as methionine, cysteine, or tryptophan may have shorter effective shelf lives. Specific retest or expiration dates are noted on the COA for each lot.

Store reconstituted peptides at 2–8°C and use within 14–21 days. Avoid repeated freeze-thaw cycles. For longer storage, aliquot into single-use volumes and freeze at −20°C. Use sterile technique and appropriate solvents — bacteriostatic water, sterile saline, or other documented reconstitution media — based on the peptide’s solubility profile.

All Prism Peptides products are intended exclusively for legitimate in-vitro laboratory research by qualified professionals. Appropriate uses include in-vitro experimentation, assay development, analytical method validation, and academic or institutional research. Our products are not for human consumption, veterinary use, clinical application, drug compounding, or dietary supplementation.

No. Our products have not been evaluated or approved by the FDA for any purpose. They are research chemicals and laboratory reagents — not drugs, medications, dietary supplements, food additives, cosmetics, or medical devices. They are not intended to diagnose, treat, cure, or prevent any disease.

Prism Peptides is a laboratory chemical supplier providing research-grade reference materials. We are not a compounding pharmacy, outsourcing facility, pharmaceutical manufacturer, medical provider, or dietary supplement manufacturer as defined under any section of the Federal Food, Drug, and Cosmetic Act.

Products may be purchased by qualified individuals and organizations engaged in legitimate scientific research — including academic institutions, government laboratories, CROs, biotech and pharmaceutical companies, and individual researchers with appropriate facilities. All purchasers must acknowledge our Terms of Service.

Email us at support@prismpeptides.com. Our team typically responds within 4 hours during business days (Monday–Friday, 9 AM–6 PM EST). We provide knowledgeable assistance with product specifications, COA interpretation, storage guidance, reconstitution protocols, and order-related inquiries.

We are developing expanded analytical and custom synthesis capabilities. Contact us with your specific requirements and we will advise on current availability, pricing, and timelines.

No. Prism Peptides does not sell syringes, needles, or injection supplies, and does not provide dosing guidance or administration protocols of any kind. Our products are lyophilized reference materials for in-vitro laboratory research only. If you are seeking medical treatment, please consult a licensed healthcare provider.