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Storage Guide

Preservation of Peptides | Storage

Protocols to keep the molecular stability and maximum potency of your peptides

Lyophilized Peptides

Most stable form for long-term storage

Recommended

Peptides arrive as a lyophilized (freeze-dried) powder, which is the most stable form for storage. In this state, enzymatic activity and degradation are minimized as much as possible.

-20°CFreezer
Shelf life:2-3 years

Ideal for long-term storage

2-8°CRefrigerator
Shelf life:6-12 months

Recommended for regular use

20-25°CRoom temperature
Shelf life:1-3 months

Only during transport

After Reconstitution

Requires careful handling and proper storage

Important
Attention

Once reconstituted with bacteriostatic water, the peptide becomes more susceptible to degradation. Shelf life is reduced significantly.

-20°CFreezer
Shelf life:3-6 months
2-8°CRefrigerator
Shelf life:4-6 weeks
20-25°CRoom temperature
Shelf life:48-72 hrs

Protocol

Best Practices

Do

Use bacteriostatic water (0.9% benzyl alcohol)
Inject the solvent slowly down the wall of the vial
Swirl gently to dissolve, never shake
Label with the reconstitution date
Store protected from light

Avoid

Never use plain distilled water
Do not inject directly onto the powder
Avoid shaking or vortexing vigorously
Do not freeze/thaw repeatedly
Do not expose to direct light or heat

Alert

Degradation Signs

Cloudiness or visible particles

Severity high

Color change (yellowing)

Severity high

Unusual odor

Severity medium

Precipitate that will not redissolve

Severity high

Excessive foaming when shaken

Severity low

Loss of effectiveness in assays

Severity high

Reference

Quick Reference Table

Peptide TypeLyophilizedReconstitutedExamples
GLP-1 / GIP agonists-20°C, 2+ years2-8°C, 4 weeksRetatrutida, Tesamorelin
Growth factors-20°C, 2 years2-8°C, 2-3 weeksIGF-1, HGH
Cognitive peptides-20°C, 2 years2-8°C, 4-6 weeksSemax, Selank
Signaling peptides-20°C, 2+ years2-8°C, 4 weeksBPC-157, TB-500

Need storage supplies?

Bacteriostatic water, insulin syringes and everything your peptides need

Estabilidad por temperatura

Vida útil estimada según la temperatura de almacenamiento y el estado del vial. El congelador ofrece el mayor margen; la temperatura ambiente solo se justifica durante el transporte.

Reconstitución paso a paso

Reconstituir es una secuencia: cada paso protege la potencia del péptido antes y después de añadir el solvente.

Referencia por familia

Guía orientativa por tipo de péptido. Consulta siempre las condiciones específicas del compuesto.