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Guide

Storage & Shelf Life

Here's how to store your research peptides correctly — for maximum stability and effectiveness.

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-20 °C
Long-term storage
Powder (lyophilisate)
Up to 24 months
❄️
2–8 °C
Refrigerator
Powder short-term
Reconstituted: 14–28 days
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≤ 25 °C
Room temperature
Only briefly
Use within a few hours
⚠️
Avoid
Harmful to peptides
Direct sunlight · Humidity
Repeated freezing
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Storage as a powder (lyophilisate)

Unopened vials in original condition

01
Temperature: Ideally at -20 °C for long-term storage or 2–8 °C for short-term use.
02
Store in a dry place: Moisture is the biggest enemy of peptide powders. Keep the original packaging closed until ready to use.
03
Sun protection: Store vials in their original packaging or in opaque containers.
04
Temperature control: Bring to room temperature before opening and wait for the condensation to clear — only then pierce the stopper.
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After the reconstitution

Dissolved peptide in BAC water

01
Always use BAC Water: Use only sterile bacteriostatic water (0.9 % benzyl alcohol) for reconstitution — not tap water or ordinary distilled water.
02
Refrigerator (2–8 °C): Reconstituted peptides must be stored in the refrigerator. Shelf life: typically 14–28 days.
03
Note the date: Write the reconstitution date on the vial to keep track of its shelf life.
04
Do not freeze: Freezing destroys the peptide structure. Dissolved peptides must never be frozen.
Best Practices

6 important storage tips

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Use BAC Water

Sterile bacteriostatic water prevents bacterial growth and significantly extends the shelf life after reconstitution.

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Disinfect the septum

Wipe the rubber septum with an alcohol swab before each sampling — this prevents contamination during multiple sampling.

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Maintain the cold chain

Temperature fluctuations drastically reduce shelf life. The recommended temperature must be maintained at a constant temperature.

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Avoid light

Many peptides are light-sensitive and degrade under UV radiation. Store in dark containers or the original packaging.

❄️

Do not freeze repeatedly

Each thawing/freezing cycle damages the peptide structure. Freezing is only suitable for undissolved powder.

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Label date

Write the reconstitution date on the vial. This way you can keep track of the expiration date and batch sequence.

Frequently asked questions about storage

Yes — Lyophilized peptide powder can be stored at −20 °C. Important: When thawing, wait for condensation to dissipate before opening the vial.
Typically 14–28 days in the refrigerator (2–8 °C). This depends on the peptide type and the purity of the water used.
Exclusively sterile BAC Water (Bacteriostatic water with 0.9% benzyl alcohol). Not tap water, not regular distilled water.
Yes — many peptides are light-sensitive and degrade under UV radiation. Always store in the original packaging or in opaque containers.
Short interruptions (a few hours at room temperature) are tolerable. Prolonged exposure to heat or temperatures above 30 °C significantly accelerates the degradation.
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Buy accessories

BAC water, syringes, sterile empty vials for portioning and alcohol swabs are available directly in the shop.

Accessories
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Still questions?

Our team will gladly help you with proper storage.

Get in touch