What Happens If You Miss a Peptide Dose?
What to do when you miss a peptide dose — for weekly GLP-1s and daily peptides.
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What’s the Best Time of Day to Take Peptides?
The best time to take peptides depends on which one you’re using. Here’s a simple guide.
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How to Read a COA Without a Science Degree
How to read a Certificate of Analysis and spot fakes — no science background needed.
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What Happens If Your Order Gets Seized by Customs (Our Policy)
Our customs guarantee explained — if your order is seized, we reship for free. No questions asked.
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What Is a COA for Peptides?
A COA (Certificate of Analysis) for peptides is a document from an analytical laboratory that verifies the identity, purity, and quality of a peptide batch using HPLC and mass spectrometry.
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What Is Bacteriostatic Water?
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a preservative, used to reconstitute lyophilized peptides and other compounds while preventing bacterial growth.
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How to Reconstitute a Peptide Vial
To reconstitute a peptide vial, draw bacteriostatic water into a syringe, inject it slowly along the vial wall, and gently swirl until the powder dissolves completely.
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What Is Peptide Purity?
Peptide purity is the percentage of the target peptide in a sample versus impurities like truncated sequences, deletion peptides, and residual solvents, measured by HPLC analysis.
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How to Read a Certificate of Analysis (COA) for Peptides
A practical guide to reading and evaluating Certificates of Analysis for research peptides — covering HPLC purity, mass spectrometry, endotoxin testing, and red flags to watch for.
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How Long Do Peptides Last in the Fridge?
Lyophilized (freeze-dried) peptides last 12-24 months refrigerated at 2-8°C. Once reconstituted, most peptides remain stable for 14-30 days in the fridge.