Frequently Asked Questions
From ReVia
Getting Started
What are research peptides?
Research peptides are synthetic chains of amino acids used in laboratory research to study biological processes. Every ReVia compound is labeled For Research Use Only (RUO). They're not for human or animal consumption, and not for diagnosing, treating, or preventing any disease.
Products & Quality
Are your peptides third-party tested?
Yes. An independent lab tests every lot, and the lot-specific Certificate of Analysis reports identity, quantity, purity, and heavy metals.
What purity level are your peptides?
Every compound is made to a purity spec of greater than 98%, verified by RP-HPLC with UV detection. The Certificate of Analysis shows the actual measured number for the lot you have.
How should I store my peptides?
Keep lyophilized peptides at 2–8°C, away from light and moisture. Once reconstituted, keep them refrigerated and use within 30 days. For long-term storage, −20°C.
What is the shelf life?
Stored properly, lyophilized peptides stay stable for 18 to 24 months. Reconstituted peptides should be used within 30 days.
What’s the difference between lyophilized and reconstituted?
Lyophilized is freeze-dried powder, the stable form the compound ships and stores in. Reconstituted means it's been dissolved in a solvent like bacteriostatic water, after which it should be used within 30 days. Don't reconstitute until you're ready to start.
Stacks & Blends
What is a peptide stack?
A stack is a blend: two or more complementary compounds combined in one vial at fixed ratios instead of shipped as separate vials. You reconstitute it once and draw it as one solution.
Why use a blend instead of separate vials?
The ratio between compounds is fixed when the vial is blended, so it isn't something you have to get right at the bench. And there's one reconstitution instead of several. The vial is built around one line of research.
Research & Safety
Are your products FDA approved?
No. These are research chemicals for laboratory use only. They're not FDA approved, not for human or animal consumption, and not for diagnosing, treating, curing, or preventing any disease.
What is used to reconstitute a peptide?
Bacteriostatic water, usually. A few compounds need acetic acid instead.