Are Lyophilized Peptides Stable During Shipping?
Yes. Lyophilized (freeze-dried) peptides are significantly more stable than reconstituted solutions. The removal of water eliminates the primary catalyst for chemical degradation. Most lyophilized peptides tolerate ambient temperature shipping for 3-5 days without measurable loss of purity, even in warm conditions.
What About Summer Heat?
Temperatures inside delivery vehicles can exceed 50°C during summer months. While brief exposure at these temperatures is unlikely to cause significant degradation of lyophilized peptides, prolonged exposure (multiple days above 40°C) can accelerate certain degradation pathways. Quality suppliers mitigate this risk with insulated packaging and cold packs during warm months.
Does AminoAxis Use Cold Packaging?
All orders ship in insulated packaging. During warm weather months, cold packs are included to maintain temperature during transit. Orders ship within 24 hours and are sent via carriers with 3-5 day delivery windows to minimize transit time.
What Should I Check When My Order Arrives?
Inspect the outer packaging for damage. Check that vial seals are intact. Examine the lyophilized cake — it should be white to off-white without yellowing or discoloration. A collapsed cake may indicate temperature exposure but does not necessarily mean the peptide is degraded. Transfer vials to appropriate storage (refrigerator or freezer) promptly after receipt.
What If My Order Was Delayed?
If your package spent more than 5 days in transit during hot weather and the cold packs are completely warm, the peptides are likely still fine if they are lyophilized. However, if you notice any visual changes (discoloration, crystalline appearance instead of powder), contact support for a replacement.
Can I Request Expedited Shipping?
If you are in a region with extreme temperatures or need to minimize transit time, contact us about expedited shipping options. Shorter transit time is the most effective way to protect peptides during shipping.
