We answer everything, straight up.

Orders paid before 3 PM (Paris time) are prepared the same day and handed to the carrier within 24 business hours. Delivery within mainland France then takes 48 to 72 hours, and 2 to 5 business days within the rest of Europe.

Not yet. We currently ship only within the European Union. Expansion to other countries (Switzerland, United Kingdom, United States, Canada, Australia) is under review — tracking is provided from shipment for all EU orders.

Yes. Plain packaging, with no logo or mention of Peptinium Labs on the outside. Vials are carefully cushioned in padded packaging to absorb shocks during transit.

Damaged parcel: state your reservations to the carrier on delivery and take photos of the packaging and vials. Then contact support as soon as possible with your order number and your proof: those photos for damage, a screenshot of the tracking for a parcel not received, a photo of the contents for a missing item. We open an investigation with the carrier; what happens next depends on its findings. Without proof, we cannot open a claim.

No. Given the nature of our products, all sales are final: we accept no returns and no exchanges (terms of sale, article 5). Please check your order carefully before confirming it. A product that does not match your order must be reported to support on receipt, with photos.

Yes, as long as it hasn't been prepared yet. Contact support by email or via your account's messaging — the modification window is generally 2 to 4 hours after payment.

Credit card (Visa / Mastercard / American Express), SEPA bank transfer, and cryptocurrencies (USDC and USDT on Polygon, Bitcoin). Crypto payment has no intermediary and no additional fees.

Yes. You pay directly to our wallet addresses, no third party is involved. No KYC is required. Only the public blockchain sees the transaction (address → address); no customer data is transmitted.

Yes. When the payment voucher is generated, the EUR → USDC / USDT / BTC rate is locked for 20 minutes via CoinGecko. After that, the order is cancelled and a new voucher is generated at the current rate.

As soon as the first blockchain confirmation lands — about 15 seconds for USDC/USDT on Polygon, 10 minutes for BTC. An automatic confirmation email is sent upon validation.

Not at the moment. We favor direct payment to remain free of intermediaries.

That the main peak area of the peptide represents at least 99% of the total area detected by reverse-phase HPLC. The remaining less than 1% consists of residual impurities (truncated peptides, salts, solvents). This is the analytical standard expected in research.

A Certificate of Analysis is a report issued by an independent third-party laboratory that certifies the identity, purity, and quantification of a specific batch. It is essential for any defensible experimental data.

Each Janoshik Analytical CoA carries a unique alphanumeric key. You enter it on janoshik.com to retrieve the original report directly from the lab. Without this cross-check, a PDF has no scientific value.

We publish the Janoshik certificates we hold, including 3 batches tested under the Peptinium Labs name (RT-3 10, 20 and 40 mg). Testing of other batches is in progress or available on request. Two syntheses are never strictly identical (purity, quantification): a certificate only applies to the batch and dosage it states.

Yes, it's even recommended. We've published a comparison of 3 independent laboratories (Janoshik, ChemRx, Colmaric) with pricing, turnaround times, and shipping procedure. See the "Testing your vials" page.

In the lab: introduce bacteriostatic water into the vial, letting the liquid run down the wall (never directly onto the powder), then gently swirl. The solution should be clear, colorless, and free of particles.

From receipt: in the refrigerator (2–8 °C), sealed vial, protected from light. For long-term storage: −20 °C. It tolerates a few days of shipping at room temperature with no expected degradation.

Refrigerated (2–8 °C), protected from light, in bacteriostatic water (0.9% benzyl alcohol), never refrozen. Without preservative (pure WFI), stability drops to 24–72 hours.

Each freeze/thaw cycle forms ice crystals that disrupt the structure and cause local osmotic stress. Measurable analytical activity loss occurs starting from the second cycle.

Yellow or brown coloration, precipitate at the bottom of the vial, persistent haziness, stable foam after shaking. In these cases, the peptide is no longer usable, regardless of initial purity.

It's a regulatory status that restricts a product's use to in vitro scientific research in a professional setting. It excludes any veterinary, diagnostic, or therapeutic use. This framework is shared by most academic suppliers (Sigma-Aldrich, Bachem, Tocris).

Yes, as long as they are acquired and used within a research context. Peptinium Labs does not sell medicines and makes no therapeutic claims. It is up to the buyer to ensure their use is compliant.

No, there is no status verification at sign-up. By accepting the RUO terms, you certify that the order is intended for research use in a professional setting.

No. None of our products are approved for veterinary, diagnostic, or therapeutic use. The RUO (Research Use Only) status strictly prohibits it.

For large volumes or recurring orders, contact us directly: we review each request case by case.

Yes, at any time from your account's Profile tab. You can save several addresses (lab, home) and choose which one to use at checkout.

From the Profile tab of your account, or by writing to support. Deletion is effective within 48 hours and erases all personal data (GDPR). CoAs and invoices tied to past orders remain archived for 10 years for accounting reasons.