Klotho (Klotho Protein)
A longevity-associated protein named after the Greek Fate who spins the thread of life. Higher Klotho levels are linked to slower aging, better cognition, and kidney and cardiovascular health. Studied for neuroprotection and age-related decline.
How it works
Exists in membrane-bound and soluble forms. Soluble Klotho acts as a circulating hormone that modulates FGF23 signaling, regulates phosphate/vitamin D balance, suppresses certain growth and oxidative-stress pathways, and supports synaptic and cognitive function.
Key facts
- Molecular weight: ~130 kDa (full protein; fragments studied)
- Half-life: Not well established for therapeutic forms
- Bioavailability: Injectable in research; large protein with limited oral absorption
- Storage: Protein material kept frozen/refrigerated per supplier guidance; avoid freeze-thaw cycles.
Dosing overview
- Typical dose: No established human dose
- Frequency: Unknown
- Duration: Unknown
- Route: Injection (research)
Protocol notes
- No validated human protocol exists; data are largely preclinical.
- Animal studies have used injected soluble Klotho or fragments.
- Any human use should be considered experimental.
Reported benefits
- Associated with longevity and slower aging
- Neuroprotection and improved cognition (preclinical)
- Supports kidney and cardiovascular health
- Regulates phosphate and mineral balance
Possible side effects
- Human safety unknown
- No established side-effect profile
- Mineral/phosphate regulation effects are unstudied in supplementation
Research
- Klotho and cognitive enhancement (2014): Elevating Klotho improved synaptic function and cognition in mouse models.
- Klotho as a longevity hormone (2018): Reviewed associations between higher Klotho and reduced age-related disease and mortality.
Community reviews of Klotho
- lab_notes_tom rated it 5/5 - Genuinely effective after 4 months: Been using Klotho for about 4 months and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
- cycle_sage rated it 4/5 - Noticed clear benefits within weeks: Added Klotho to my protocol about 6 weeks ago and it has earned its place. The benefits became noticeable around week 2-3 and have been consistent since. What I appreciate about this compound is the predictability. It does what the research suggests it should do, at roughly the timeline you would expect. No surprises, no dramatic swings, just steady improvement. No notable side effects to report at my dose. Sourcing is always the challenge with research compounds, insist on third-party testing. Storage and reconstitution per standard protocols. Plan to continue.
- bio_optimal rated it 5/5 - Worth adding to the protocol: Klotho has been a worthwhile addition. I am data-driven and tracked relevant markers before, during, and after. The improvement is measurable and correlates with the intervention timeline. What sets this apart from some compounds I have tried is the consistency. Benefits did not fluctuate wildly or disappear. They built up and maintained. That gives me confidence in the mechanism. Tolerance has been excellent. Nothing in my bloodwork or subjective experience raised any flags. This is the kind of compound that does its job quietly without causing problems. Exactly what you want.
- dose_diary_alex rated it 5/5 - Solid compound with real results: Been using Klotho for about 6 weeks and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
Compare Klotho
Research and educational reference only. Not medical advice.