Research handling · Storage & stability
How to store your peptides.
Two windows to know: before you reconstitute (lyophilized powder) and after you reconstitute (mixed with bacteriostatic water). Guidance below matches standard research-lab practice; always defer to peptide-specific stability data on the COA when available.
Unreconstituted
Lyophilized / dry powder
−4°F or colder
- Best long-term storage: Freezer at −4°F or colder.
- Many sources recommend 0°F or below — standard household freezer temperature is sufficient.
- Keep in the original sealed vial until ready to reconstitute.
- Protect from direct light and moisture at all times.
Reconstituted
Mixed with bacteriostatic water
36–46°F (36–46°F)
- Refrigerate at 36–46°F.
- Do not freeze reconstituted peptides — freezing after mixing can damage them.
- Typical shelf life after reconstitution: 2–4 weeks (some peptides remain viable up to 28–30 days; others degrade faster).
- Always check the specific peptide's guidelines for exact reconstituted stability.
General best practices
- Protect from direct light — keep in the original box or an opaque container.
- Use sterile technique when reconstituting.
- Label vials with the date reconstituted so you can track shelf life.
- Discard if the solution becomes cloudy or discolored.
Research use only. This guidance reflects standard laboratory handling for lyophilized and reconstituted research peptides and is provided for informational purposes. It is not medical advice. Products offered by Black Ice Peptides are sold strictly for in-vitro laboratory research and development and are not for human or veterinary consumption or administration.