Klotho Peptides

Preclinical only Anti-Aging & Longevity 3 sources

Klotho peptides are derived from the Klotho protein, a naturally occurring enzyme known for its profound anti-aging and renoprotective properties. Research suggests these peptides can mimic the effects of the full-length protein, potentially improving cognitive function, protecting against oxidative stress, and extending lifespan in animal models.

01Dosing reference

Amount

Unknown (Preclinical only)

Frequency

Unknown

Cycle

Unknown

Reference figures, not a recommendationThese values reflect amounts described in the literature and vendor documentation this database indexes. Use the reconstitution calculator to convert them into syringe units.

02Mechanism of action

FGF23 Coreceptor Activation

Klotho acts as an essential coreceptor for Fibroblast Growth Factor 23 (FGF23), facilitating its binding to FGF receptors.

Phosphate Homeostasis

This activation regulates phosphate and calcium metabolism, preventing vascular calcification and tissue damage.

Antioxidant and Anti-apoptotic Effects

Independent of FGF23, Klotho peptides suppress insulin/IGF-1 signaling and reduce oxidative stress, promoting cellular longevity.

03Human evidence

Lack of direct clinical trials on synthetic Klotho peptides

While circulating Klotho levels in humans are correlated with healthspan and cognitive function, direct administration of synthetic Klotho peptides has not yet been rigorously tested in human clinical trials.

04Preclinical evidence

Cognitive enhancement and neuroprotection

In mouse models of Alzheimer's disease and aging, systemic administration of Klotho fragments improved spatial learning and memory, and reduced neuroinflammation.

Renal protection and fibrosis reduction

Animal models of chronic kidney disease demonstrated that Klotho peptide administration mitigated renal fibrosis and preserved kidney function.

05What is known vs. unknown

Reasonably established

Klotho is a transmembrane protein whose extracellular domain is shed into circulation as soluble Klotho.
Higher levels of endogenous Klotho are associated with better cognitive function and longer lifespan.
Klotho peptides aim to deliver the therapeutic benefits of the large Klotho protein in a more bioavailable form.
Research indicates strong potential for neuroprotection and kidney health.

Unknowns & limits

The optimal sequence and stability of synthetic Klotho peptides for human use remain undetermined.
Long-term safety and potential off-target effects of chronic Klotho receptor activation are unknown.
Clinical efficacy in humans has yet to be established through controlled trials.

06Safety & regulatory context

Regulatory statusKlotho peptides are currently strictly for research purposes and are not approved by the FDA for human use. Because they are in the preclinical stage, their safety profile, potential side effects, and contraindications in humans are not well defined. Theoretical risks could involve disruptions in mineral metabolism (calcium and phosphate) due to their interaction with FGF23 pathways.

07Compared with Epitalon

Klotho Peptides vs. Epitalon

Key difference

Epitalon primarily targets telomerase activation and pineal gland function, whereas Klotho peptides directly influence FGF23 signaling and phosphate metabolism.

When researchers discuss each

Researchers discuss Epitalon when focusing on telomere lengthening and circadian rhythm restoration, and Klotho when addressing systemic anti-aging, cognitive decline, and renal protection.

08Glossary

FGF23

Fibroblast Growth Factor 23, a hormone that regulates phosphate concentration in plasma.

Renoprotective

Having the effect of protecting the kidneys from damage or disease.

Soluble Klotho

The circulating form of the Klotho protein that acts as an endocrine factor throughout the body.

09Knowledge check

Q1What is the primary hormone that Klotho interacts with as a coreceptor to regulate mineral metabolism?

Q2Which of the following is a major focus of preclinical research involving Klotho peptides?

Q3Which limitation described in the dossier most directly prevents confirmation that synthetic Klotho peptides improve health outcomes in humans?

Q4Compared with Epitalon, researchers studying Klotho peptides are most likely focusing on which biological context?

Q5Which statement best reflects the dossier's current safety and regulatory status for synthetic Klotho peptides?

10Sources

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Epitalon

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Epitalon is a synthetic tetrapeptide designed to mimic the effects of epithalamin, a natural polypeptide produced in the pineal gland. Research suggests it can activate telomerase, elongate telomeres, regulate melatonin production, and potentially extend lifespan in animal models.

5-10 mg/day

SS-31 (Elamipretide)

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SS-31, also known as elamipretide, is a mitochondria-targeted peptide that binds to cardiolipin in the inner mitochondrial membrane. It helps restore mitochondrial function, reduce oxidative stress, and improve cellular energy production. Research has heavily focused on its potential for treating heart failure, mitochondrial myopathies, and age-related cellular decline.

2-4 mg/day

FOXO4-DRI

Anti-Aging & Longevity

Preclinical only

FOXO4-DRI is an engineered peptide designed to selectively induce apoptosis (programmed cell death) in senescent cells. Research in animal models suggests it can clear these 'zombie cells' by disrupting the interaction between the FOXO4 and p53 proteins, potentially reversing signs of aging and restoring tissue function.

1-3 mg/day (theoretical research dose)

Research and educational use onlyNothing on this site is medical advice, a prescription, or a recommendation for human use. Compounds documented here are research chemicals. Consult a qualified clinician before making any health decision.