Laboratory Protocol
Storage & Handling
Correct storage conditions are essential for research compound integrity. Read before use.
Unopened Lyophilised Vials
- ›Store at –20 °C (standard laboratory freezer) for optimal long-term stability.
- ›Some compounds may be stored at 2–8 °C (refrigerated) for up to 3 months — refer to your specific COA.
- ›Avoid temperature cycling. Repeated freeze-thaw reduces peptide integrity.
- ›GLP-1 class peptides (Semaglutide, Tirzepatide, etc.) are most stable at –20 °C.
Reconstituted Solutions
- ›After reconstitution, store at 2–8 °C (refrigerated). Do not refreeze.
- ›Use within 14–28 days of reconstitution depending on compound — refer to your COA.
- ›Keep sterile: use aseptic technique throughout reconstitution.
- ›Bacteriostatic water (0.9% benzyl alcohol) extends stability post-reconstitution vs. sterile water.
Light Protection
- ›All peptide vials must be protected from direct light and UV exposure.
- ›Store in original amber or foil-wrapped vials where provided.
- ›GHK-Cu and melanocortin peptides are particularly light-sensitive.
- ›Minimise exposure time during reconstitution and handling.
Shelf Life
- ›Lyophilised compounds: typically 2 years from manufacture date at –20 °C.
- ›Reconstituted solutions: 14–28 days refrigerated (varies by compound).
- ›Open bacteriostatic water vials: discard after 28 days.
- ›Check the lot-specific COA for compound-specific stability data.
Research Use Only. Storage protocols are provided for laboratory reference only. These compounds are not for human or veterinary use. Arcane Peptides accepts no liability for improper storage or handling.