One of the most common questions we receive from new researchers concerns the appearance of our products upon arrival. You may notice a vial containing only a small, visible "puck" of white powder, or sometimes what appears to be a thin film at the bottom.
This is the result of Lyophilisation (freeze-drying), the industry standard for peptide stability.
Why We Freeze-Dry Peptides in liquid solution are fragile; they are susceptible to hydrolysis and heat degradation, which breaks the amino acid bonds. To prevent this, we subject the solution to extreme cold and a vacuum, removing moisture through sublimation. This leaves behind a crystalline structure that is highly stable at room temperature during shipping.
Proper Storage Protocols To maintain the integrity of your research materials, strict adherence to storage protocols is required:
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Lyophilized State: Store at -20°C (Freezer). In this state, the peptide can remain stable for years.
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Reconstitution: When ready to research, introduce Bacteriostatic Water slowly down the side of the vial to avoid damaging the peptide lattice. Do not shake the vial vigorously; swirl gently.
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Reconstituted State: Once mixed, the clock starts. The vial must be stored at 4°C (Refrigerator) and used within the timeframe dictated by the specific compound's stability profile (typically 2–4 weeks).