Peptide storage is essential to ensure quality is maintained at the highest level possible. We always suggest storing peptides in a fridge of freezer, but they are stable at room temperature for up to a month, depending sequence length, etc.

Below are the our suggested storage guidelines:

Vials must be stored in the refrigerator (2 to 8 degrees Celsius) Expiry Use within 3-8 weeks of mixing. (Sequence dependent)

In powder (lyophilized) form vials can be stored frozen (0 to -20 degrees Celsius). Expiry Will remain stable up to 48 months (4 years) in the freezer. We recommend using within 18 months of purchase. Unmixed vials can be stored in the freezer for a period of up to 48 months (4 years); however, if you are going to use the vials within 1-3 months then you can store them in the refrigerator as repeated freeze-thaw cycles can cause damage to the peptide.

For best possible storage conditions, store your peptides in a sealed container away from UV light, away from oxygen and moisture. You can add moisture absorption packages and oxygen absorption packets while packing at room temperate. Then store following the procedure above. Vacuum storage containers are another alternative we recommend.

Peptides are simply short strings of amino acids typically compromising of 2–50 amino acids.

Amino acids are the building blocks of proteins. Peptides are easier for the body to absorb than proteins because they are smaller and can be broken down more than proteins. Different amino acid sequences make up the different peptides and give that specific peptide the ability to derive various benefits. Peptides have been used in mainstream medicine, supplementation and research for over 50 years.

One of the most common peptides in mainstream medicine is Insulin for type 1 diabetes. Because peptides can be replicated quickly, many of them never make mainstream medicine or become registered products on the pharmacy shelf. This is why trust peptides supply the finest of peptides to be researched for scientific progress.

Peptides are increasingly gaining traction in various research fields. To achieve the best outcomes, it’s crucial to understand the ins and outs of peptide storage and reconstitution. This comprehensive guide will walk you through essential tips for maintaining the highest quality and effectiveness of peptides.

Proper storage is vital for maintaining the stability and potency of peptides. Peptides in their lyophilised (freeze-dried) form are safe for transport as they are protected from UV light and remain stable in a freeze-dried state. However, we recommend refrigerating them as soon as possible upon arrival to ensure proper storage and extend their longevity.

At PEPTAGENIX, we take storage seriously. We maintain peptides in a controlled environment with a temperature-controlled walk-in freezer and three medical fridges, all closely monitored for optimal temperature stability. Peptides stored at -20°C in a freezer will remain stable for up to 48 months, making this ideal for long-term storage. When you receive peptides, it’s best to store them immediately in your refrigerator (2-8°C) or freezer (-20°C) for extended preservation. For added protection, you can also purchase one of our storage cases.

Note: Peptides degrade gradually over time, and degradation doesn’t mean reduced potency initially. However, as peptides break down, they can lose their structure and charge, leading to fragmentation and eventual loss of effectiveness.

Below is a table summarising ideal storage durations for different types of peptides:

Peptides are typically supplied in lyophilised powder form, requiring reconstitution. For best results, allow the peptide vial and the mixing solution (e.g., bacteriostatic water) to reach room temperature before mixing. This helps avoid issues like cloudiness that may occur when cold solutions are combined.

When reconstituting, it’s essential to equalise the pressure in the vial. Due to the drying process, some vials may have a vacuum, while others could have positive pressure. To balance this, insert a syringe half-filled with air into the vial’s rubber stopper. The syringe will either pull in or release air, stabilising the pressure. This prevents solution loss once it’s added, as excess pressure may cause peptides to spray out through the stopper.

Bacteriostatic water is commonly used for reconstitution, although some peptides may require acetic acid for complete dissolution. For hydrophobic peptides, a 50% aqueous acetic acid solution can be helpful. Create a stock solution at a higher concentration than necessary, allowing for later dilution with the assay buffer.

Mixing: Gently swirl the vial until the peptide is fully dissolved. Avoid vigorous shaking, as this can damage the peptide structure.

Adding too much solution can fragment and break down peptides. Use between 1 to 2.5 ml of solution for reconstitution unless specific studies confirm that a higher volume is safe. Excessive dilution can compromise peptide integrity, potentially reducing effectiveness.

Understanding proper peptide storage and reconstitution techniques is essential for preserving their quality, stability, and effectiveness. By following the guidelines in this guide, you’ll be well-prepared to handle peptides in your research or personal health endeavours with confidence and precision.