Great Northern Peptides FAQs
Your trusted source for clear answers about shipping, testing, and how to buy peptides in Canada.
We created this page to help you find honest information about our products, quality standards, and Canadian delivery.
Every answer reflects our commitment to transparency, safety, and verified peptide quality.
What are peptides?
Peptides are short chains of amino acids, the same building blocks that form proteins in the body. They play an important role in supporting functions like muscle growth, recovery, metabolism, and healthy skin.
How do peptides work?
Peptides are short chains of amino acids that act as signaling molecules in the body. They bind to specific receptors on cells, sending instructions that can trigger biological processes like hormone release, tissue repair, fat metabolism, or muscle growth. Because they’re highly specific, peptides can target particular systems with fewer side effects compared to broader drugs. In simple terms, they work like “messengers,” telling the body to start, stop, or adjust certain functions.
How do I store my Peptides?
Peptides should be stored in a cool, dry place away from direct sunlight. Great Northern Peptides always recommends to keep them in the refrigerator to maintain stability. Once reconstituted with bacteriostatic water, they must be refrigerated and used within the recommended timeframe.
Are peptides safe for human consumption?
Peptides are intended for research purposes only and are not approved for human consumption. Always consult with a healthcare professional before about there use.
Do peptides come in liquid form?
No, peptides are sold in lyophilized powder form and must be reconstituted with bacteriostatic water before use.
How do your reconstitute peptides?
Supplies You’ll Need:
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Peptide Vial: Ensure it is properly sealed and stored before use.
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Bacteriostatic or Sterile Water: Used to dissolve the peptide, depending on the type.
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Alcohol Swabs: For cleaning vial tops and injection sites.
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Syringe and Needle: Typically a 1 ml syringe with a 29–31 gauge needle.
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Insulin Syringe: For accurate dosing after reconstitution.
Step-by-Step Reconstitution:
1. Preparation:
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Wash your hands thoroughly and clean your workspace.
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Gather all supplies before starting.
2. Sanitize:
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Wipe the rubber stoppers on both the peptide vial and the water vial with an alcohol swab.
3. Draw the Water:
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Using a syringe, draw the recommended amount of water (usually 1–2 ml, depending on dosing needs).
4. Add Water to the Peptide:
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Insert the needle into the peptide vial at an angle to reduce bubbles.
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Slowly inject the water down the side of the vial to help the peptide dissolve evenly.
5. Dissolve the Peptide:
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Gently swirl the vial until the peptide is fully dissolved.
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Do not shake, as this can damage the peptide.
6. Storage:
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Keep the reconstituted peptide in the refrigerator.
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Peptides remain stable for months when stored in a refrigerator.
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Label the vial with the reconstitution date for reference.
Tips for Accurate Dosing:
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Use an insulin syringe for precise measurement.
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Know your peptide concentration. For example, if 10 mg of peptide is dissolved in 2 ml of water, each 0.1 ml contains 500 mcg.
Why does the peptide puck in the vial look broken?
It’s normal for the peptide “puck” (the solid powder at the bottom of the vial) to appear cracked, broken, or uneven. This happens during manufacturing, shipping, or handling and does not affect the quality, potency, or safety of the peptide. As long as the vial is properly stored and the peptide dissolves completely during reconstitution, it is safe to use for your research.
Why does the 20mg peptide look the same size at the 10mg peptide?
The size of the peptide powder doesn’t necessarily change with the amount of peptide in the vial. A 20 mg vial may look similar to a 10 mg vial because peptide powders are very light and fluffy. The difference in weight isn’t always visible to the eye, but the vial still contains the correct amount of peptide.
Why does my peptide look cloudy after reconstitution?
A cloudy appearance after reconstitution is usually normal and can happen with some peptides. It often occurs if the peptide hasn’t fully dissolved or if tiny air bubbles are present. Gently swirling the vial (do not shake) usually clears it up.
What size vials do peptides come in?
Peptides come in 3ml sterile, vacuum-sealed vials with factory seals. NAD+ comes in 10ml vial formats. Please look for these notations on the product pages.
Do you offer recommendations on how to use peptides?
We do not provide guidance or information on peptide use. Peptides are intended strictly for research purposes. They are not for human consumption.
Where can I find a peptide calculator?
This website has an excellent peptide calculator to help you with your research…
