Frequently asked questions
What is the intended use for Peptisole products?
All products are strictly for laboratory research and in-vitro testing only; they are not intended for human or veterinary use, or for the treatment of any medical condition.
Why do your peptides come in a dry powder form?
We provide peptides in a lyophilized (freeze-dried) state because it is the most stable format, protecting the delicate molecular chains from breaking down during shipping and long-term storage.
How should I store the peptides once they arrive?
For maximum shelf life, keep the dry vials in a freezer at -20°C; once you add liquid (reconstitution), they should be kept refrigerated at 2-8°C and used within a short window to ensure accuracy.
How can I be sure of the purity of my batch?
Every batch is independently tested using HPLC and Mass Spectrometry to verify it meets our 99%+ purity standard, and you can request the Certificate of Analysis (COA) for any lot number.
What is the difference between different peptide types?
Each peptide has a unique sequence of amino acids designed to interact with specific receptors in a research environment, such as those governing metabolism or tissue repair.
Do you ship with temperature-controlled packaging?
Yes, we use insulated packaging to maintain a stable environment during transit, ensuring that the structural integrity of the peptides is not compromised by external heat.
Can I return a product if I no longer need it?
Due to the sensitive nature of laboratory reagents and the need to maintain a strict "cold chain," we cannot accept returns once a product has left our climate-controlled facility.
What liquid should be used to dissolve the peptides?
Most research protocols require Bacteriostatic Water or sterile saline, but you should always consult your specific study guidelines for the correct reconstitution volume.
Why does the powder in the vial look like different amounts?
The "cake" (powder) size can vary based on the freeze-drying process and the specific weight of the peptide, but the actual milligrams of the active compound remain precise as labeled.
How do I read the lot number on my vial?
The lot number is your "identity key"—it allows you to track the exact date of synthesis and the specific purity test results associated with that unique production run.