Frequently asked questions
Documentation, shipping, storage and research-use requirements.
Are your products for human use?
No. Every Sunbelt product is sold strictly for in-vitro laboratory research and analytical use. They are not drugs, supplements or cosmetics and are not for human or veterinary use. We do not provide dosing or usage guidance.
Do you provide a certificate of analysis?
Yes. Each vial carries a lot number tied to an independent third-party report covering identity (mass spectrometry) and chromatographic purity (HPLC). Email us your lot number and we will send the report; an online COA library is being added.
How much is shipping?
U.S. orders of $199 or more ship free. Orders under $199 ship for a flat $12.99. Every order includes tracking and ships in a plain outer carton.
How do volume savings work?
Savings apply automatically in your cart: 5% off when you have 3–5 vials and 10% off at 6 or more, across any mix of compounds and sizes. Lab supplies such as bacteriostatic water do not count toward the vial total.
What form do the peptides arrive in?
Peptides ship as lyophilized (freeze-dried) powder in crimp-sealed glass vials. Lyophilized material is stable for shipping; store at −20 °C on arrival.
How should vials be stored?
Keep lyophilized vials at −20 °C, away from light and moisture. Once reconstituted, refrigerate at 2–8 °C and follow your laboratory protocol for stability windows.
Do you ship internationally?
We currently ship to U.S. addresses only.
What payment methods do you accept?
Checkout is being finalized with a payment processor that supports research compounds. Orders placed today receive a secure payment link by email before shipping.
Can I return a product?
Because research compounds are temperature-sensitive, opened or unsealed vials cannot be returned. If an order arrives damaged or incorrect, contact us within 7 days of delivery with photos and we will replace it. See Shipping & returns.
Why are some compounds listed under codes like SB-3R?
Several metabolic research compounds are catalogued under Sunbelt codes. The full compound name appears directly beneath each code on the product page and label.
Who can purchase?
Purchasers must be 21 or older and acknowledge at checkout that products are for research use only. We may cancel any order where we believe products are intended for human or animal use.
Still have a question?
We reply within one business day.