Frequently asked questions
Common questions about purity and documentation, storage, reconstitution, shipping and ordering. Still stuck? Send us a request.
What purity are PX1 Labs peptides, and how is it verified?
Every PX1 batch is guaranteed at 99%+ identity purity. Each lot is independently tested at accredited European laboratories — HPLC for purity quantification and mass spectrometry for identity confirmation. A lot-specific Certificate of Analysis is included with every order.
What is on a Certificate of Analysis, and how do I read it?
The CoA is a signed lab document tied to your specific lot. It shows purity percentage (target 99%+), identity confirmation via mass spec, physical appearance and endotoxin level (target below 1 EU/mg). The lot number on your vial matches the lot ID on the document, so you can verify what you received against what was tested. Our field-by-field CoA guide walks through each line.
How should I store the product?
Sealed lyophilized vials are stable at room temperature for short-term storage (under three months) in a cool, dry, dark place. For longer storage, refrigerate at 2–8 °C or freeze at −20 °C, and avoid repeat freeze–thaw cycles. Stored correctly, lyophilized peptides typically remain stable for 2+ years. See storing lyophilized peptides.
How do I reconstitute a peptide and work out the volume?
Reconstitution means adding bacteriostatic water to the lyophilized powder. The volume you draw depends on the vial strength, the water added and your target amount. Our reconstitution calculator does the maths, and the reconstitution guide covers technique. Reference information for laboratory use only.
How fast does PX1 Labs ship, and what does it cost?
Shipping across the EU is free on every order, with no minimum. Orders placed before 2 pm CET typically dispatch the same business day, otherwise the next. Standard EU delivery runs about 3–5 business days from fulfilment. Every shipment includes free shipment protection.
Do you ship internationally?
PX1 Labs ships across all EU member states. Availability outside the EU depends on local customs regulations for research materials — send us a request with your destination country and we will confirm what is possible.
How do I place an order?
Ordering is handled through our Telegram shop, where you choose your compounds, pick a delivery point and pay. Tap Telegram Shop anywhere on the site, or message @px1labs_bot. For product or wholesale questions first, send a request.
What if my order is damaged or does not arrive?
Every shipment is covered by free shipment protection: if it arrives damaged or does not arrive at all, we replace it. Contact us with your order details and we will sort it out.
What does “research use only” mean?
All PX1 Labs products are supplied strictly for laboratory and in vitro research. They are not for human or veterinary use, not for any diagnostic or therapeutic application, and have not been evaluated by the European Medicines Agency or any other regulatory authority. We supply qualified researchers and laboratories only, and verify researcher status before sale.