Side-by-Side Comparison · 2026

FOXO4-DRI vs Klotho

FOXO4-DRI vs Klotho — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

FOXO4-DRI
Longevity & Anti-Aging

FOXO4-DRI is a D-retro-inverso peptide that selectively disrupts the interaction between FOXO4 and p53 in senescent cells. In normal cycling cells, p53 is free to trigger apoptosis when needed....

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Klotho
Longevity & Anti-Aging

Klotho is an anti-aging protein encoded by the KL gene, named after the Greek Fate who spins the thread of life. α-Klotho exists as a transmembrane protein primarily in the kidney and choroid plexus, and is shed as a soluble circulating form (sKL)....

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Key Parameters
Parameter FOXO4-DRI Klotho
Category Longevity & Anti-Aging Longevity & Anti-Aging
Research Preclinical Preclinical
Half-Life - Hours (shed fragment in serum)
Typical Dose 5 mg/kg (animal models) -
Frequency 3x weekly (research cycles) -
Route Intraperitoneal / Subcutaneous (research) IV / Subcutaneous (research)
FDA Status Not Approved Not Approved

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Use ASCEND's free reconstitution calculator to get exact syringe draw amounts for your vial.

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Frequently Asked Questions
What is the difference between FOXO4-DRI and Klotho?
FOXO4-DRI: FOXO4-DRI is a D-retro-inverso peptide that selectively disrupts the interaction between FOXO4 and p53 in senescent cells. In normal cycling cells, p53 is free to trigger apoptosis when needed.... Klotho: Klotho is an anti-aging protein encoded by the KL gene, named after the Greek Fate who spins the thread of life. α-Klotho exists as a transmembrane protein primarily in the kidney and choroid plexus, ...
Which has a longer half-life, FOXO4-DRI or Klotho?
FOXO4-DRI half-life: unknown. Klotho half-life: Hours (shed fragment in serum).
Can you stack FOXO4-DRI and Klotho?
FOXO4-DRI and Klotho are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.