Frequently Asked Questions
Everything you need to know about ordering research compounds from Pepta Labs.
Quality & Testing
What purity are your research compounds?
All Pepta Labs research compounds are manufactured to a minimum of ≥99% HPLC purity. Every batch is independently tested by a third-party laboratory using high-performance liquid chromatography (HPLC) and electrospray mass spectrometry (MS) for molecular weight confirmation. Typical purity results range from 99.1% to 99.6%.
Are your research compounds third-party tested?
Yes — every single batch. We do not rely on internal-only testing. Each lot is sent to an independent analytical laboratory for HPLC purity testing and mass spectrometry verification. The resulting Certificate of Analysis (COA) is available upon request and can be requested via support@peptalabs.com.
How should I store research compounds after receiving them?
Lyophilized (freeze-dried) compounds should be stored at -20°C for long-term storage. Short-term storage at 2–8°C (standard refrigerator) is acceptable for several weeks. Keep vials sealed and protected from light and moisture. Avoid repeated freeze-thaw cycles.
Ordering & Payment
Is there a minimum order?
No. There is no minimum order amount. You can order a single vial. Free shipping is included on all US orders regardless of size.
Do you offer bulk or multi-vial discounts?
Yes. Most products offer
3-vial and 5-vial packs with per-unit savings of up to 25%. We also offer curated
research bundles that pair complementary peptides at additional discounts. Volume pricing is shown on each product page.
Shipping & Delivery
Orders placed before 2 PM EST are processed and shipped the same business day. Standard shipping is free on all US orders and typically arrives within 2–5 business days. Expedited options are available at checkout.
Do you ship internationally?
We currently ship to US addresses only. International orders cannot be processed at this time. Sign up for our mailing list to be notified when international shipping becomes available.
Products & Research
Are these research compounds for human use?
No. All Pepta Labs products are sold strictly for in-vitro laboratory research purposes only. They are not approved by the FDA for human or animal consumption, medical treatment, or diagnostic use. By purchasing, you confirm you are 21+ and acknowledge these products are for research use only.
Where does the research information on product pages come from?
All research information on our product pages is sourced from published peer-reviewed literature. Each study citation includes the title, journal name, authors, and a PubMed ID (PMID) link for direct verification. These findings are provided for informational purposes only and do not represent claims about our products.