Storage & reconstitution reference
Lyophilized (freeze-dried) peptides arrive as a powder and must be mixed with a sterile diluent before use. This page covers the standard handling practices found in compounding-pharmacy reference guides: storage temperatures, the mixing process, and the microgram-to- milligram conversion table.
SmartPeptide does not prescribe, diagnose, or treat, and does not tell you whether to use any peptide. This page documents standard laboratory and pharmacy handling practice so you can understand what proper storage and preparation involve. Many research peptides are not FDA-approved for human use. Sterile technique matters — contamination and dosing errors carry real risk. Work with a licensed clinician.
Before reconstitution
Storing the lyophilized powder.
Generally stable, but not the preferred long-term option.
The standard choice for medium-term storage.
Maximum stability for extended storage.
Store in a dark, dry place in airtight vials. UV and humidity degrade peptides.
After reconstitution
Once the powder is mixed into solution.
Reconstituted peptides must stay cold to maintain potency.
Freezing after reconstitution causes degradation.
Some peptides (AOD-9604, TB-500) can normally look cloudy or viscous. Discard on unexpected particulates, discoloration, or odor.
Write the reconstitution date on every vial.
The reconstitution process
Standard pharmacy handling practiceBacteriostatic water contains 0.9% benzyl alcohol, which suppresses bacterial growth and supports peptide stability across multiple draws. Sterile water without a preservative is single-use only.
Push roughly 1 mL of air into the vial before adding diluent. This equalizes the negative pressure inside the lyophilized vial, making the liquid easier to withdraw later.
Aim the stream at the inside wall of the vial rather than directly onto the powder. This minimizes foaming and mechanical stress. Peptides are fragile — vigorous mixing damages their structure.
Do not shake. Allow the powder to go into solution naturally; gently roll or invert the vial if needed. Some peptides dissolve within seconds, others take several minutes.
Write the reconstitution date on the vial and store at 4°C. Inspect for clarity before each draw.
Microgram ↔ milligram conversion
1,000 µg = 1 mgPeptide doses are quoted in both units, which is a common source of 100× and 1,000× dosing errors. µg (microgram, sometimes written “mcg”) is one thousandth of a mg (milligram).
Doses-per-vial stability guardrail
Compounding-pharmacy references commonly advise against reconstituting at a concentration that yields more than roughly six doses per vial for a single individual. The reasoning: each needle entry through the stopper is an opportunity for contamination, and the bacteriostatic preservative loses effectiveness over an extended draw window. Vials holding many small doses are typically a clinical-setting pattern, not a home-use one.
Run the numbers
Enter a vial size, water volume, and target dose to get mL to draw and insulin-syringe units. Pure arithmetic, no recommendations.
Educational only — not medical advice. SmartPeptide does not prescribe, diagnose, or treat. Always consult a licensed healthcare provider before using any peptide, supplement, medication, or protocol.