>99%

Purity HPLC

U.S.

Manufactured

Lab-Tested Peptides, Backed by Science

A smarter, more personalized approach to recovery, performance, and longevity

Shop now Peptide calculator

Delivered in 48 hours

>99%

Purity HPLC

U.S.

Manufactured

Lab-Tested Peptides, Backed by Science

A smarter, more personalized approach to recovery, performance, and longevity

Shop now Peptide calculator

Delivered in 48 hours

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

Quality Assurance

The proof ships
with every order.

99%+Purity

5QC Steps

COAEvery Order

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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 us

No. 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.