Why Are My Peptides in Powder Form? What Do I Do With This?

Why Peptides Arrive in Powder Form

Opened the box and found powder? That’s exactly right — here’s why.

Peptides are shipped as a freeze-dried powder (also called lyophilized) to preserve their purity, stability and effectiveness. That powder must be reconstituted using bacteriostatic water before injection.

All Pep Hub products are for laboratory research use only.

What You Need to Do

First time working with peptides? No stress — we’ve made it easy. Start by reading the three instructional guides below. Each one also includes a video tutorial at the bottom of the article.

How to Store Your Peptides
How To Reconstitute Your Peptides
How To Inject Your Peptides

Recommended Supplies: To make things even easier, we offer a Pep Hub Starter Kit that includes everything you need to reconstitute and inject your peptides safely and correctly.

Starter Kit Available Here: Pep Hub Starter Kit

Use discount code StarterKit25 at checkout for 25% off your first kit.

Notes

Always follow proper sterile handling procedures.
Store unused dry/lyophilized peptides in the freezer after arrival for best stability. They can tolerate short shipping windows at room temperature, but should not be left at room temperature for routine storage.
Once reconstituted with bacteriostatic water, peptides should be stored in the refrigerator and used within 45 days unless the product label or protocol says otherwise.
Let us know if you need help or have questions about mixing or storage.

Need Help Calculating Your Dose?

Our online dosage calculator makes it easy to prepare accurate peptide doses — you’ll find it in the Pep Hub Help Center.

Helpful Guides

Check the Pep Hub Help Center for the full set of guides, look up lab results in The Receipts, and confirm your lot with Check Your Vial.