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>99%
Purity HPLC
U.S.
Manufactured
Lab-Tested Peptides, Backed by Science
A smarter, more personalized approach to recovery, performance, and longevity
Delivered in 48 hours✓ U.S. manufactured✓ 3rd-party tested — every batch✓ 99%+ purity guaranteed✓ Free COA with every order✓ Cold-chain packaging standard✓ No subscription required✓ 2-day expedited shipping available✓ U.S. manufactured✓ 3rd-party tested — every batch✓ 99%+ purity guaranteed✓ Free COA with every order✓ Cold-chain packaging standard✓ No subscription required✓ 2-day expedited shipping available
Research-backed sourcing
Built on the literature,
not the hype.
Every compound we carry is selected for documented research protocols and verified purity. Real rigor, no shortcuts.
[1]Sourced from GMP-audited suppliers
[2]Third-party COA verified on every batch
[3]Formulated to match published research specifications
[4]Formulated for research use — no fillers, no shortcuts
[5]Full batch transparency available on request
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U.S. manufactured — 2-day expedited shipping available
2-day expedited shipping available
Quality Assurance
The proof ships
with every order.
Free Certificate of Analysis included with every order
Independent Verification
Tested by Vanguard Laboratory.
Cielo doesn't grade its own homework. Every batch is analyzed by Vanguard Laboratory, an independent third-party lab — purity and identity verified before anything ships, with the certificate of analysis included in every order.
Browse Tested Products
99%+
Purity verified
HPLC
Plus mass spec
COA
Every order
FAQ
Common questions,
straight answers.
Everything researchers ask us before their first order.
Still have questions? Email usNo. All Cielo products are strictly for laboratory and research purposes only. They are not intended for human or animal consumption, and are sold only to verified research professionals aged 21+.
Every batch is independently tested by accredited U.S. labs using HPLC and mass spectrometry. A Certificate of Analysis (COA) is included with every order — no request needed.
We offer 2-day expedited shipping, Monday through Friday (excluding holidays). You'll receive a tracking number as soon as your order is fulfilled.
All peptides are synthesized exclusively in credentialed U.S. facilities operating under strict quality management systems. We do not source from overseas.
Due to the nature of research chemicals, all sales are final once shipped. If your order arrives damaged or incorrect, contact us at info@cielocrew.com within 48 hours.
Yes. Contact us directly at info@cielocrew.com for bulk pricing, custom sequences, or white-label research supply inquiries.
Not sure which peptide fits your protocol?
Our team responds within one business day — tell us your research goal and we'll point you to the right compound, dosage, and format.
No sales pitch. Just answers.
Ask a specialistNew peptides sell out fast.
Get restock alerts, new sequence drops, and protocol guides — before they go public.
No spam. Unsubscribe any time.
Join the Cielo crew now.
Order tracking, saved wishlists, referral rewards — and first access when limited batches restock.
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