FOXO4 10mg
♢ Research use only Class-level spec; selected lots Janoshik-tested
Original price was: €206.49.€185.99Current price is: €185.99.
Free standard EU shipping on orders over €200
If a product doesn't match the specification on its published COA, contact us with your batch number: we investigate against the lot's report and replace any product that fails it, at no cost to you.
Contact us within 48 hours of delivery with photos of the outer box, inner packing, and any affected vials with labels legible. Confirmed transit damage is replaced at no cost to you.
Returns policy →Shipping estimate for EU
3–7 days most of the EU · 10–14 Nordics/Baltics. Dispatched within 1–2 business days. Check destination rates at checkout.
Full shipping informationResearch-grade FOXO4. Class-level specification ≥98%. Lyophilized powder in sealed glass vial. For research purposes only. Not for human consumption.
Description
About FOXO4 10mg
What is FOXO4-DRI?
Senescent cells — the ones that have stopped dividing but refuse to die — stay alive by sequestering p53 in the nucleus through a FOXO4-p53 interaction. FOXO4-DRI disrupts that interaction. When the partnership breaks, p53 is free to do what it normally does in damaged cells: trigger apoptosis. The senescent cell dies. The healthy cell next door, which does not depend on FOXO4-p53 for survival, is unaffected.
Peter de Keizer at Erasmus University published this mechanism in 2017. It was the first peptide-based senolytic — a compound that selectively kills senescent cells.
Mechanism of Action
The D-retro-inverso trick
DRI stands for D-retro-inverso. All the amino acids are D-form (mirror image of natural L-amino acids) and the sequence runs backwards. This makes the peptide invisible to proteases — enzymes that normally chop up peptides cannot recognize D-amino acid substrates. So FOXO4-DRI has the binding specificity of the natural FOXO4 sequence but the metabolic stability that natural peptides lack.
Mechanism
Competes with endogenous FOXO4 for p53 binding. In senescent cells, FOXO4 keeps p53 trapped in the nucleus and away from the mitochondria where it would trigger apoptosis. FOXO4-DRI outcompetes this interaction, releasing p53. Free p53 translocates to mitochondria and initiates the intrinsic apoptosis pathway. Only cells that depend on FOXO4-p53 for survival are affected — which is specifically senescent cells.
Research Overview
Storage
Lyophilized at -20°C. Reconstituted: 2-8°C, use within 4 weeks.
Quality
Class-level specification ≥98%. Sold and shipped from the EU by CERTALAB S.R.L.
Product Specifications
- Molecular weight: ~5,500 Da
- Purity: ≥98% (class-level specification)
- Form: Lyophilized powder
- SKU: CP-F410
Independent reports, where on record, are searchable by batch or report code. View reports →
For research purposes only. Not for human consumption.
Consult the published report for lot-specific measured results.
No independent report is currently published for this product. A class-level specification is not an independent lot test.
Follow the storage conditions on the product label and its published documentation. Handle only in an appropriately equipped laboratory.
Peptide Reconstitution Calculator →Researcher Confidence
Why researchers choose CertaPeptides
Who actually tests this?
Selected lots are independently verified by Janoshik Analytical (Czech Republic) and published on the Janoshik public portal. Other lots ship with the supplier's batch specification. See /coa for the published wall.
View COAs →What if I get the wrong batch?
Every vial label carries a code. Look it up on our Verify page: it shows what CertaPeptides publishes for that code and, for a withdrawn lot, that the lot was withdrawn and why. If yours is withdrawn, or if the code on your label finds nothing, email us that code.
View COAs →Where does it ship from?
Romania (EU). We are CERTALAB SRL, CUI 54169956, VAT-registered. Sameday for Romania, GLS for most EU destinations, TCE Worldwide for the remaining cross-border EU and non-EU markets (UK, Switzerland). Delivery 1–15 business days depending on destination — exact window shown at checkout.
Shipping details →What if there's a problem?
You have a 14-day withdrawal right under OUG 34/2014 (Romanian/EU consumer law), with escalation to ANPC and alternative dispute resolution (SAL) available. Contact us at support@chinapeptideshop.com.
Returns policy →Product Information
This product is intended for scientific research and development purposes only. It is a chemical substance that shall not be used as a drug, medicine, active substance, or ingredient in any product intended for human or animal consumption. Researchers must handle this compound in accordance with their institutional biosafety guidelines. Use only in properly equipped laboratory settings with appropriate personal protective equipment.
Peptides in lyophilized (freeze-dried) form are shipped in sealed glass vials using standard delivery methods and do not require refrigeration during transit. Lyophilized peptides are highly stable at ambient temperatures for the duration of standard shipping (typical transit windows are shown at checkout). Once received, transfer the product to refrigerated storage (2–8°C) promptly.
Frequently Asked
Research peptides are supplied in lyophilized (freeze-dried) form. The amount of material is typically only a few milligrams — appearing as a very thin film or small pellet at the bottom of the vial, often nearly invisible. This is completely normal.
Unlike some suppliers who add bulk fillers (such as Mannitol), CertaPeptides provides pure peptide without unnecessary additives.
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