How to Reconstitute Peptides - Step-by-Step Mixing Guide

8 min read

What is Reconstitution?

Reconstitution is the process of adding a liquid solvent (typically bacteriostatic water) to lyophilized (freeze-dried) peptide powder to create an injectable solution. This is a critical step that directly affects the accuracy of your dosing.

What You'll Need

Important: Always use bacteriostatic water, not sterile water. BAC water contains a preservative that prevents bacterial growth and extends the shelf life of your reconstituted peptide.

Step-by-Step Instructions

Step 1: Prepare Your Workspace

Clean your workspace and wash your hands thoroughly. Gather all supplies before beginning. Allow refrigerated peptides and BAC water to reach room temperature (15-30 minutes) before mixing.

Step 2: Clean the Vial Tops

Use an alcohol swab to clean the rubber stopper on both the peptide vial and bacteriostatic water vial. Let them air dry for 30 seconds.

Step 3: Draw Bacteriostatic Water

Using a clean syringe, draw the desired amount of bacteriostatic water. Common amounts: 5mg vial: 1-2ml of BAC water; 10mg vial: 2-3ml of BAC water. More water = lower concentration = easier to measure small doses. Use our calculator to determine the optimal amount for your peptide.

Step 4: Add Water to Peptide

Insert the needle into the peptide vial at a slight angle. Slowly inject the water against the side of the vial, letting it run down gently. Do NOT spray directly onto the powder - this can damage delicate peptide molecules.

Step 5: Let it Dissolve

Do not shake! Shaking can denature (damage) the peptide. Let the vial sit for 5-10 minutes. Gently swirl if needed (rotate the vial slowly). Continue until all powder is completely dissolved.

Step 6: Store Properly

Once reconstituted, immediately refrigerate at 2-8 degrees C (36-46 degrees F). Most peptides remain stable for 3-4 weeks after mixing.

Common Mistakes to Avoid

Now that your peptide is reconstituted, use our free calculator to determine exactly how many units to inject for your desired dose.


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