Peptide Reconstitution — Lyophilised Powders Explained
Reconstitution is the laboratory step of dissolving a lyophilised peptide powder in a solvent before use in a research protocol. This guide covers the mechanics of that step, the solvent formats Index Peptides supplies, and storage after reconstitution — it does not prescribe volumes, concentrations or any in-vivo use.
Last updated: 2026-08-21 · By: Index Peptides technical team
Why peptides are supplied as lyophilised powder
Lyophilisation (freeze-drying) removes water from the peptide while preserving the material in a stable, sealed form. That is why research peptides arrive as a powder or pellet in a vial rather than as a liquid — the lyophilised form is the documented, stable format. Long-term stability data are batch-specific and recorded against the batch record.
The reconstitution step
Reconstitution means adding a laboratory solvent to the lyophilised powder so it dissolves back into solution for use in a research protocol. The volume of solvent, the resulting concentration and the handling steps are matters for the researcher's own protocol — they are not prescribed by the supplier, and nothing on this site is guidance for any in-vivo use.
Choosing a solvent
Index Peptides supplies bacteriostatic water in 10ml and 3ml vials as the solvent format for laboratory bench preparation. Researchers select the appropriate solvent and volumes for their own protocol; the material itself is documented by batch, with identity and purity on the certificate of analysis.
Storage after reconstitution
Reconstituted solutions are generally less stable than the lyophilised form. Storage of a solution — temperature, duration and reuse — is a matter for the researcher's protocol and laboratory practice; the batch record documents the lyophilised material's stability data.
Frequently asked questions
What does reconstitution mean?
Reconstitution is the laboratory step of dissolving a lyophilised peptide powder in a solvent before use in a research protocol. It is a bench procedure that belongs to the researcher's protocol, not a prescription from the supplier.
Does Index Peptides provide reconstitution instructions?
No. We document the material — identity, purity and storage of the lyophilised form — and supply the solvent format for research use. Volumes, concentrations and handling are matters for the researcher's own protocol.
How should the lyophilised material be stored?
Lyophilised peptides are best stored at -20°C, desiccated and protected from light, per the batch record. Storage of any reconstituted solution is a matter for the researcher's protocol.
Research use only. Not for human or animal consumption.