Ever notice little water droplets forming inside a vial? That’s condensation buildup — and when it comes to peptides, it’s not ideal. 🔹 What Causes It Condensation happens when a vial is moved between cold and warm environments. The temperature swing causes water vapor in the air to condense inside the vial. Since peptides are freeze-dried (lyophilized), they’re meant to stay completely dry until you add your own bacteriostatic or sterile water. 🔹 Why It’s a Problem - Can prematurely reconstitute small amounts of peptide. - Speeds up degradation and loss of potency. - Increases contamination risk if outside air sneaks in. 🔹 How to Avoid It ✅ Limit temperature swings — don’t constantly move vials in and out of cold storage. ✅ Let vials acclimate sealed to room temp before opening. ✅ Use desiccants (silica packs) in storage containers. ✅ Store consistently — fridge for short term, freezer only if long term. A little condensation once isn’t the end of the world, but repeated buildup can shorten shelf life and lower purity. Best move? Keep vials dry, sealed, and stable in temperature.