Peptipedia › Glossary › Lyophilizate
Mixing & materials
Lyophilizate
·independent & ad-free
Lyophilizate - A freeze-dried powder. Peptides are lyophilized because, as a dry powder, they stay stable and usable far longer than in solution.
Also called lyophilizedfreeze-drieddry powder
Lyophilization is freeze-drying: a solution is frozen and the water is removed directly from the solid state under vacuum (sublimation). What remains is a dry, often fluffy or cake-like powder - the lyophilizate.
Why peptides are lyophilized
Peptides dissolved in water degrade over time. As a dry powder they are far more stable and can be stored cool for months to years. Only shortly before use is the powder reconstituted (mixed).
What to watch
- The powder may sit as a thin film on the vial wall or at the bottom - it often looks tiny, which is normal.
- Store dry, cool and away from light until mixed.
Wording mix-ups
Casually just „the powder"; the adjective is „lyophilized" (also „freeze-dried").