ARA 290

ARA 290 is a research-grade cibinetide research peptide (erythropoietin analog) available at For Peptides with ~99% HPLC purity, independent 3rd-party lab testing, and >90% fill volume. Every vial ships from our USA facility and is intended strictly for in vitro laboratory research — not for human or veterinary use. Explore other recovery research peptides in our recovery research collection.

ARA-290 (Cibinetide) is an 11 amino-acid peptide derived from the helix B region of erythropoietin. Unlike full-length EPO, ARA-290 binds selectively to the innate repair receptor (IRR), a heteromer of the EPO receptor and the common beta subunit (CD131), without stimulating erythropoiesis. This makes it a widely-studied tool for investigating tissue-protective signaling without hematocrit effects.

ARA-290 is investigated in preclinical models of neuropathic pain, sarcoidosis, diabetic complications, and anti-inflammatory tissue protection. It has been studied specifically for its ability to modulate inflammatory cytokine cascades.

Technical Specifications

• Molecular Formula: C55H89N17O21
• Molecular Weight: 1256.39 g/mol
• Sequence: Gln-Glu-Gln-Leu-Glu-Arg-Ala-Leu-Asn-Ser-Ser
• Appearance: White lyophilized powder
• Amount per Vial: 16 mg

Handling & Storage

• Lyophilized powder: Store at -20°C for long-term stability.
• After reconstitution: Store at 2-8°C and use within 30 days.
• Reconstitution: Use bacteriostatic water or sterile water for injection.
• Avoid: Repeated freeze-thaw cycles and direct light exposure.

Quality & Testing

• Purity: ~99% by HPLC
• Testing: Third-party independent laboratory analysis
• Fill Volume: >90% guaranteed
• Shipping: Cold-chain compatible, ships from USA

Frequently Asked Questions

What is ARA-290?
ARA-290 is a short EPO-derived peptide that selectively activates the innate repair receptor without triggering red blood cell production.

Does ARA-290 affect hematocrit in research?
No. Its design specifically avoids the classical EPO receptor, which is why it is studied for tissue protection without hematologic effects.

What is its purity?
~99% HPLC purity, verified by an independent third-party laboratory.

Why Researchers Choose For Peptides ARA 290

• ~99% HPLC purity verified via high-performance liquid chromatography on every batch
• Independent 3rd-party lab testing with Certificate of Analysis (COA) available on request
• >90% fill volume guarantee — you get the peptide mass you paid for
• Ships from USA — fast domestic fulfillment, no international customs delays
• Real scientific support — questions answered by researchers, not a call center

Browse related research peptides in our recovery research collection, or view all our best-selling research peptides. For questions about ARA 290 purity, COAs, or bulk research orders, call 1-877-336-7737 or start a live chat.

Related research terms: ARA-290, cibinetide, EPO helix-B analog, ARA 290 HPLC purity, ARA 290 COA, buy ARA 290 research peptide USA, ARA 290 lab tested.

Free Shipping on Orders Over $250