Storage, shelf life and travel

At home

• Unmixed powder: fridge for months, freezer for long-term. Keep it dry and dark. A few days at room temperature in shipping is generally fine.
• Mixed vials and filled cartridges: fridge, 2–8 °C (36–46 °F), upright, out of the light. Never freeze them. Use within about 28 days of mixing, sooner if the Library entry says so.
• Loaded pens: needle off. Peptide pens in the fridge; testosterone pens at room temperature.
• BAC water: room temperature is fine; discard 28 days after the first puncture.
• Testosterone and other oils: room temperature.
• Syringes filled ahead: only if you must. Cap them, keep them in the fridge, and use them within a day; the syringe isn't a sterile container for longer. Let one sit at room temperature 10–15 minutes before injecting.
• Use a back shelf, not the door (it swings in temperature), and keep vials away from the freezer vent where they can freeze.
• Powder in the freezer: take out only what you'll mix soon. Each thaw and refreeze lets in a little moisture, so avoid moving vials in and out.
• Label every mixed vial with the name and the day you mixed it (Inventory keeps the mix date too).

Signs a mixed vial has gone off: it turns cloudy or yellow-brown, has floaters or strings, smells odd, or a dose that used to work stops working. Throw it out. A faint haze can be normal for a few compounds (the Library entry says so); a vial that was clear and turns cloudy is not.

Travel

• Pack mixed peptides in an insulated case with a cold pack, wrapped so vials never touch the frozen pack.
• Never leave them in a hot car.
• Fly with them in your carry-on, never checked (holds can freeze). US airport security (TSA) allows injectable medications with their syringes and needles; tell the officer.
• Keep everything in its labeled vial. Rules on peptides vary by country, so check before flying abroad.

Go with this guide