Frequently Asked Questions

Answers, by topic.

Everything we get asked, organized into ten plain-English categories — from how the 21+ attestation works to how your COA gets generated. Can’t find what you’re looking for? Open the assistant from the chat button in the bottom-right — once you’re signed in it can pull up your orders and account, too.

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FAQ

Common questions, answered.

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peptriva sells to qualified researchers aged 21+ who are buying research peptides for bona fide laboratory work. That includes academic and government labs, contract research organizations, industry R&D teams, and independent researchers with an institutional or research-context affiliation. We do not sell to consumers for in-vivo, therapeutic, or personal use — see the Research-Use Policy for the full definition.
Before you can create an account or check out, you confirm two things: (1) you are at least 21 years old, and (2) you are acquiring our products exclusively for in-vitro laboratory research and not for human or veterinary administration. The attestation is timestamped, IP-logged, and binding under the Terms and Waiver Agreement.
No — the catalog, research library, and quality pages are all public. You only need an account when you place an order, save a cart, or set up a recurring order. Browsing the AI Assistant works without an account too, though we may rate-limit anonymous sessions.
Click Log in in the top-right and choose Create account. Provide your email, set a password, then complete the 21+ and Qualified Researcher attestation. Institutional buyers can add an organization name and role to their profile. You can also create your account at checkout in a single flow.
We currently ship within the US only. You can browse the catalog and use the AI Assistant from anywhere, but checkout is restricted to US shipping addresses. International expansion is on the roadmap — sign up for the newsletter to be notified when we add destinations.
38 individual research peptides across seven classes: Tissue & Connective (BPC-157, TB-500, PEG-MGF), Dermal (GHK-Cu, Melanotan 1/2, SNAP-8), GHRH / Ghrelin Axis (Ipamorelin, Sermorelin, Tesamorelin, CJC-1295 blends), Metabolic / Incretin (Cagrilintide, Mazdutide, AOD-9604, the FG series), Longevity / Cellular (Epitalon, MOTS-c, NAD+, FOXO4-DRI), Neurochemical (Selank, Semax, DSIP, PT-141), and Immune-Regulatory (Thymosin α1, KPV, LL-37, ARA-290). Browse all on catalog or by class on the research library.
A way to group peptides by the biology they engage with. Tissue & Connective covers wound, tendon, and gut-barrier studies; GHRH / Ghrelin Axis covers GH-axis pharmacology; Metabolic / Incretin covers GLP-1 / amylin / GIP research; Longevity / Cellular covers mitochondrial and senolytic targets; Neurochemical covers central-nervous-system targets; Immune-Regulatory covers immune modulators and antimicrobials; Dermal covers cosmetic / skin-research peptides. Each class has a dedicated section on the research library.
The molecules we sell are lab-tested reference compounds. Three of the molecules in the catalog have FDA-approved prescription versions sold by other companies (Tesamorelin / Egrifta®, Bremelanotide / Vyleesi®, Elamipretide / Forzinity™). What we sell is the lab-tested compound, not the prescription product, and it is not approved for human or veterinary use. See the Research-Use Policy.
Some peptides on our catalog (notably BPC-157) are on the FDA Category 2 503A list, which restricts compounding-pharmacy access — not their sale or possession as research chemicals. We disclose the regulatory status of each peptide where the literature has it, and we don’t suggest in-vivo use of any of them. Our lab-tested BPC-157 is for in-vitro laboratory study only.
A drug is a regulated pharmaceutical product approved for a specific human or animal indication, manufactured under cGMP, prescribed or sold under the relevant law. A research peptide is the same chemical entity, synthesized to a lab-tested specification, sold to qualified researchers as a reference reagent for in-vitro laboratory study. Same molecule, completely different regulatory pathway, completely different intended use.
Synthesis difficulty scales with length and modifications. A short tripeptide like KPV is much cheaper to synthesize and purify than a 39-residue acylated peptide like Tirzepatide. Cyclic peptides, peptides with non-standard amino acids, and acylated/PEGylated derivatives add cost on top. Our pricing reflects that — we don’t mark up small peptides to subsidize large ones.
ISO/IEC 17025 is the international standard for testing and calibration laboratories. A lab accredited to ISO 17025 has demonstrated it can produce technically valid, traceable results — the gold standard for pharma analytical work. We use independent ISO 17025–accredited contract labs for identity, purity, and endotoxin testing. Details on the Quality page.
We use independent ISO 17025–accredited CRO / CDMO labs for identity (LC-MS), purity (RP-HPLC), and endotoxin (LAL) testing under documented chain-of-custody. We don’t own them and they grade our lots blind to our internal QC, and we don’t publicly name them. See the Quality · Third-party labs section.
Each lot is tested for: (1) HPLC purity — RP-HPLC area-%; (2) LC-MS identity — mass-match to reference, <5 ppm tolerance; (3) Endotoxin — LAL ≤1 EU/mg; (4) Microbial — PCR-based screen; (5) Heavy metals — ICP-MS per ICH Q3D; (6) Counter-ion content — quantified so the COA weight is the actual peptide weight, not salt; plus net content per vial. See the Methods section.
Twice — by two independent checks before anything ships. The manufacturer tests and releases each batch with a full COA when production is finished. Then, when the lot arrives at our cold-chain-certified distribution facility, an independent ISO 17025–accredited third-party lab re-runs identity, purity, endotoxin and microbial screening. Only after both pass does the lot clear for two-day shipping, and both certificates are matched to the lot number on your vial. See the Quality · Tested twice section.
A COA lists each test, the spec, the result, and a pass/fail. Identity shows the observed mass and the Δppm to the reference. Purity shows the area-% from the HPLC chromatogram. Endotoxin is reported in EU/mg, the microbial screen as a PCR result (none detected). Heavy metals and acetate counter-ion are listed below in mg/kg or w/w. A plain-language COA glossary is on the way — in the meantime, open a sample on the COA Library.
Yes. The COA Library displays the most recent released lot per peptide, but per-lot retrieval is coming soon. If you have a lot number in hand and need its specific COA today, email quality@peptriva.com with the lot ID and we’ll send it within one business day.
That shouldn’t happen — only lots that pass every test are released. But if it ever does, the peptriva Out-of-Spec Replacement covers it: we replace the affected vials from the next available conforming batch and refund the purchase price of the affected units. It’s the exclusive remedy for analytical-specification non-conformance — details in the Research-Use Policy · section 8.
Wipe the rubber stopper with an alcohol pad. Slowly add the diluent down the inside wall of the vial — never jet directly onto the powder. Swirl gently (do not shake; mechanical agitation can shear peptides) until fully dissolved. A typical 5 mg vial reconstitutes with 2 mL of bacteriostatic water for a 2.5 mg/mL working solution. Solution should be clear and colourless.
For research bench work, bacteriostatic water (sterile water with 0.9% benzyl alcohol preservative) is the most common choice and gives you a longer post-reconstitution shelf life. Plain sterile water for injection works too but the solution is single-use once reconstituted. Phosphate-buffered saline or assay-specific buffers may be used where the experiment requires — check peptide stability at the buffer pH before substituting.
Sealed lyophilized vials are stable for years at −20°C. Most can sit at room temperature for 30 days without measurable degradation, which is why we ship them ambient. For long-term storage, keep them frozen at −20°C in the original sealed vial with desiccant. Check each peptide’s individual storage recommendation on its product page or the catalog.
Stored at 2–8°C in bacteriostatic water, most peptides are stable for ~30 days. Aqueous-only reconstitution shortens this to ~7 days. Cyclic and stabilized peptides can last longer; hydrolysis-prone peptides shorter. Use the manufacturer’s post-reconstitution date on the product page as your reference and always run a single fresh aliquot at the start of a new study where stability is critical.
Yes, but minimize freeze-thaw cycles — each cycle shears peptide bonds. Best practice: aliquot the reconstituted volume into single-use tubes immediately after reconstitution and freeze each at −80°C if possible (−20°C if not). Thaw on ice and use the same day. Never re-freeze a thawed aliquot.
FedEx 2-day standard. Orders placed before 5pm ET ship same-day from our California warehouse; orders after the cut-off ship the next business day. $14.99 flat shipping, free on orders over $150. You’ll get a tracking link by email the moment your package leaves.
No — we ship within the US only. Many research peptides have export-control implications and we’d rather not ship into a regulatory grey zone until our process can handle each jurisdiction’s compliance properly. International expansion is on our roadmap.
We store and handle every lot in a cold-chain-certified distribution facility, but shipments go out in standard ambient-temperature parcel packaging. Lyophilized peptides are stable at room temperature for weeks, so they don’t need cold-chain transit, and we don’t sell pre-reconstituted liquid solutions or sterile fills that would. Move your vials to refrigerator or freezer storage on arrival per the storage instructions in the box.
No — no signature is required at delivery. FedEx will leave the package at your address per their standard delivery practice. Every package is tracked with real-time updates by email; if a redelivery is needed, FedEx will reattempt up to three times before holding it at a local depot for pickup.
Yes — any order placed before 5pm ET ships same business day via FedEx 2-day. Orders placed after the cut-off ship the next business day. We can’t upgrade service levels after a label is generated, so place orders early in the day if speed matters.
You’ll receive a tracking link by email when your package is handed to the carrier. Tracking is also visible on your account dashboard — click any order to see live carrier status, ETA, and delivery proof.
No — all sales are final. Research peptides are sterile, temperature-sensitive, integrity-controlled materials. Once they leave our facility we can’t verify chain of custody or storage conditions, which means returned product can’t be re-stocked or re-released. We do offer free re-shipment for damaged, lost, or wrong shipments — see the next question.
Send us a photo of the damaged packaging and the lot number within 7 days of delivery to support@peptriva.com and we’ll re-ship the affected vials free of charge — no return required. Shipping damage is replaced 1:1 from the same batch where stock allows.
If an independent test demonstrates a shipped batch failed any of the published COA specifications, we’ll replace the affected vials from the next conforming batch and refund the purchase price of the affected units. It’s the exclusive remedy for analytical-specification non-conformance — details in the Research-Use Policy and Terms Part B.
Email support@peptriva.com within 7 days of delivery with: (1) your order number, (2) the lot number on the affected vial, (3) photos of the packaging and product, and (4) a brief description of what arrived wrong. We respond within one business day with a replacement plan or refund.
Default is replacement from the next conforming batch — same lot family where possible. If we can’t replace within a reasonable window (out of stock with no upcoming batch), we issue a full refund to the original payment method. Customers on a recurring schedule can take store credit toward their next scheduled shipment.
All major credit and debit cards (Visa, Mastercard, Amex, Discover), Apple Pay, Google Pay, and ACH bank transfer for institutional buyers above $500. Cryptocurrency is not supported. Card data is processed by our PCI-compliant payment provider — we never see or store full card numbers.
Common reasons: AVS mismatch (your billing zip doesn’t match what the bank has), CVV mismatch, the issuer blocked the transaction as “research chemicals,” or a stale card. Try a different card or contact your bank — we don’t see the decline reason in real time. If a card keeps failing, email support@peptriva.com and we can offer ACH for the order.
A standing order ships your selected items on a schedule you set, with a recurring-order discount and free shipping. You choose the interval, and you can skip, change, or cancel from your dashboard at any time before the next shipment. The next ship date is shown on the dashboard with one-click pause.
Yes — one click from your account dashboard. Pause defers the next shipment; cancel ends future shipments immediately. Already-processed shipments still ship. We don’t hide the cancel control or require email/chat to cancel.
We don’t currently collect sales tax, so the price you see at checkout is the price you pay. If that changes, any applicable tax will be shown at checkout before you confirm your order.
Research Use Only (RUO) means our products are sold strictly for in-vitro laboratory research by qualified researchers — not for human or veterinary administration, not as drugs, supplements, foods, or cosmetics. The full definition (including prohibited uses and your obligations as a buyer) is in the Research-Use Policy and the Waiver Agreement.
Because we’re a chemical supplier, not a healthcare provider. Providing human dosing guidance would constitute practicing medicine without a license and would convert our lab-tested products into unapproved drugs. The published research literature has dose ranges used in trials — the Research Library summarises them honestly — but applying that to a human or animal subject is outside our scope and is prohibited by our Terms.
Many are. The World Anti-Doping Agency Prohibited List classifies peptide hormones, GH secretagogues, and various tissue-modulating compounds under categories S0, S2, and S4. If you compete in any WADA-tested sport, verify your specific compound’s status against the current WADA list before any use. Status changes year-to-year. Our research articles note WADA status per peptide where the literature has it.
Section 503A of the Federal Food, Drug, and Cosmetic Act governs traditional compounding pharmacies. The FDA maintains a Category 2 list of bulk drug substances they’ve flagged as “may present significant safety risks” in compounding — restricting 503A pharmacy access. BPC-157 was added to the Cat 2 list in 2023. The list affects compounding, not the sale of these chemicals as lab-tested reagents to qualified researchers.
No — an IRB protocol is required for human-subjects research, which is something our products are not for. We sell lab-tested reference compounds for in-vitro work and bench-level analysis. If your work does involve human subjects, you should be operating under an IRB-approved protocol and probably sourcing from a cGMP supplier, not a research-chemical vendor.
Misrepresenting researcher status, intended use, or jurisdiction is a material breach of the Terms and Waiver. Consequences include order cancellation, account termination, forfeiture of loyalty rewards, and where appropriate referral to regulatory authorities. We monitor for resale patterns and prohibited-use language in support tickets. The release-of-claims language in the Waiver section 4 means peptriva isn’t liable for harm arising from prohibited use — it’s on you.
Encryption in transit (TLS 1.3) and at rest, passwords hashed with bcrypt, payment data handled exclusively by our PCI-compliant provider (we never see full card numbers), access controls and audit logs on all admin actions, and regular third-party security reviews. The full breakdown is in Privacy Policy · section A.8 Security.
No. We don’t sell personal information for monetary consideration. Under CCPA/CPRA we share certain categories of data with analytics and advertising partners for business purposes — you can opt out at any time from your account privacy settings or by emailing privacy@peptriva.com. Full disclosure in the Privacy Policy.
From your account dashboard: Settings → Privacy → Delete account. Or email privacy@peptriva.com. We process deletion within 30 days. Note that order history and attestation records may be retained for legal compliance (tax records, regulatory audit trails) even after account deletion — the Privacy Policy section A.4 covers retention windows.
Within a single conversation, it remembers the messages you and it have exchanged so far — that’s how it can answer follow-up questions in context. We retain anonymized conversation logs for up to 30 days for quality and abuse-monitoring purposes. Logged-in users can clear their conversation history from the Assistant via the “New conversation” button (top-right of the chat panel).
Primary infrastructure is hosted in the United States with a major cloud provider. Some processing partners (analytics, email delivery, payment processing) may process data in other jurisdictions under appropriate transfer mechanisms — EU/UK users are covered by Standard Contractual Clauses where applicable. Full detail in the Privacy Policy.
The Assistant is a chemistry-and-handling reference. It can explain peptide structure and sequence, summarise mechanism of action from peer-reviewed literature, walk you through reconstitution, storage, and analytical concepts (HPLC purity, LC-MS identity, endotoxin), and help you find specific products or articles on the site. Open it via the floating launcher in the bottom-right of any page.
The Assistant will refuse queries that ask for human-use, dosing, diagnostic, therapeutic, veterinary, or brand-comparison guidance. It won’t recommend “stacks” for in-vivo use, suggest what a user should inject, or compare our products to FDA-approved drugs in a way that implies therapeutic equivalence. Those are out of scope per the Research-Use Policy section 7.
No. The Assistant references published research only and is not a substitute for medical or veterinary advice. Outputs are informational and must be independently verified by a qualified researcher before being relied upon for any benchtop work. For human-use decisions, consult a licensed healthcare provider.
Conversation messages are sent to our AI model provider to generate a response. We retain anonymized logs for up to 30 days for quality monitoring and abuse detection. We don’t use your conversations to train models. The full data-flow is described in Privacy Policy · A.10 AI Research Assistant Data.