Questions buyers ask first.

Add products to your quote list with the specification and number of kits, then send the list with your ship-to address. A sales representative replies by email or WhatsApp with the written quote, shipping and payment details. You can also send a single inquiry.

No. There is no account, cart or checkout — your quote list is kept in your browser until you send it.

One kit per SKU. A kit is 10 vials of the selected specification (a few liquids come in other pack sizes; the product page says so).

They are USD reference prices per kit. The final price is the one on your written quote, which also covers shipping.

By the number of kits on your whole quote list, so different products add up: 1–4 kits: reference price · 5–19 kits: 20% off every kit · 20+ kits: ask for a quote. Retail is the reference price, wholesale takes 20% off every kit, and from 20 kits a sales representative quotes your price in writing. The quote list shows which applies and how many more kits reach the next step.

Prices are shown in USD. If you need EUR, GBP or another currency, ask your sales representative.

Ask — use “Need another spec?” on any product page or the contact form and describe the content, fill or labelling you need.

Yes — 49 products, in 10 mL or 20 mL bottles, at least 10 bottles of one strength and size. Nasal sprays leave from our US stock for US addresses. Each product page lists the strengths; send an inquiry and our sales team quotes them.

After your sales representative has confirmed the amount and shipping with you. Nothing is paid on this website, and sending a quote list or an inquiry costs nothing.

Payment is arranged in the chat: after you send your quote list, your sales representative confirms the amount and shipping on WhatsApp or by email and tells you in that chat how to pay. The order ships after payment. See payment for details.

No. This website does not take payments and does not collect or store card numbers or any other payment details. Payment is arranged in your chat with your sales representative.

Orders ship from China by international express courier. Nasal sprays are the exception: they leave from our US stock for US addresses. Destinations are confirmed per order — choose your country in the quote list and the quote states whether and how we can ship there.

Shipping from $80 per order; the written quote confirms the exact charge for your destination.

Yes — your sales representative sends the carrier and tracking number when the parcel is dispatched.

The buyer, unless the written quote says otherwise. Check your country’s import rules for research materials before ordering.

Contact us promptly with your reference, the lot number and photos. We review every claim and confirm the remedy in writing. See returns & quality.

Test it yourself. If it fails, you get a full refund. Send any vial from your order to an independent laboratory of your choice. If the report shows the product does not meet the specification on its COA — purity below the stated minimum, or an identity that does not match — share the report with our sales team and we refund that product in full. See returns & quality.

No. Once a sterile liquid has left our hands we cannot verify how it was stored or whether its seal was compromised, so it cannot be taken back. Damage in transit is still handled as a claim, and an independent test that fails is refunded in full.

Yes. Every lot has its own certificate of analysis reporting HPLC purity and MS identity.

Yes. The COA page shows previews of our batch COAs, the third-party test reports and the reports customers shared — the first page of each, at low resolution. Our sales team sends the full, clear copy of any report, and the COA of the lot you would receive.

Water content, counter-ion, endotoxin and other tests are available on request and listed on the COA when tested.

Each product page states its purity specification (most peptides ≥99.0% by HPLC); the lot COA reports the measured value.

Laboratory research. Products are not for human or veterinary use, and nothing on this site is medical advice.