Frequently Asked Questions

Everything you need to know about our compounds, ordering, and compliance.

All products sold by Reta Blue are strictly for in-vitro laboratory research use only. They are not for human consumption, diagnostic, therapeutic, or veterinary applications.

Compliance & Legal

Are your products for human use?
No. All compounds are sold strictly for in-vitro laboratory research. They are not intended for human consumption, diagnosis, treatment, or prevention of any disease or condition. By ordering, you confirm the products will be used exclusively for legitimate research purposes.
Who is permitted to purchase?
Purchases are limited to qualified researchers, laboratories, and academic institutions. By completing checkout you represent that you are purchasing on behalf of such an entity and accept our research-use-only terms.
Is Retatrutide legal to purchase for research?
Retatrutide is not a controlled substance and may be lawfully sold and purchased in the United States for bona fide laboratory research. It is not FDA-approved for any use in humans or animals.

Products & Quality

How is purity verified?
Every production batch is analyzed by high-performance liquid chromatography (HPLC) and mass spectrometry (MS) to confirm identity and a purity of ≥99%.
Can I get a Certificate of Analysis (COA)?
Yes. A batch-specific COA is available for every product. Contact us with your lot number and we'll provide the documentation for your records.
What is the difference between the 10mg and 20mg vials?
Both contain identical research-grade Retatrutide — the only difference is the quantity of lyophilized peptide per vial. The 20mg vial offers the better value per milligram for higher-volume protocols.

Ordering & Payment

What payment methods do you accept?
All major payment methods offered at checkout are supported. Payments are processed securely — we never store your full payment details.
Can I modify or cancel an order?
Orders ship quickly, so contact us as soon as possible. If your order has not yet been dispatched we'll do our best to modify or cancel it.

Shipping & Delivery

Where do you ship?
We currently ship within the United States only. Orders placed Monday through Friday typically dispatch within 24 hours.
How is the product packaged?
Vials ship sealed in protective, discreet packaging. Cold-chain packaging is available to maintain lyophilized stability in extreme temperatures.
Will I get tracking information?
Yes — a tracking number is emailed automatically as soon as your order ships.

Storage & Handling

How should lyophilized vials be stored?
Store sealed vials at -20°C, protected from light. Properly stored lyophilized peptide remains stable long-term.
How should the peptide be reconstituted?
For laboratory applications, reconstitute with bacteriostatic water. After reconstitution, store at 2–8°C and avoid repeated freeze-thaw cycles.

Still have questions?

Our team is happy to help with product documentation, ordering, or compliance questions.

Contact Us