[LHN]

Longevity knowledge base

Plain-English guides to the compounds, tests, drugs, therapies and claims people are talking about.

Simple answer

The public knowledge base currently includes 110 source-reviewed pages across peptides, access and safety, longevity drugs, NAD, biological age, gene therapy, senolytics and basics. High-risk pages keep the no-protocol boundary visible.

Start with these

The most useful pages for readers arriving from search, social or AI answers.

New here?
LHN branded editorial cover for article: What is BPC-157?.

Question

What is BPC-157?

BPC-157 is a synthetic peptide promoted online for injury repair, gut health and recovery.

Evidence:Mostly lab/animalRisk:High risk

Updated Jun 27, 2026 · 9 sources

Read the simple answer

Start with the most asked

The pages most readers need before forums, clinic menus or social clips.

Peptides

What people claim, what evidence exists, what is approved and what not to assume.

LHN branded editorial cover for article: What is BPC-157?.

Question

What is BPC-157?

BPC-157 is a synthetic peptide promoted online for injury repair, gut health and recovery.

Evidence:Mostly lab/animalRisk:High risk

Updated Jun 27, 2026 · 9 sources

Read the simple answer
LHN branded editorial cover for article: What does BPC-157 do?.

Question

What does BPC-157 do?

In research settings, BPC-157 is discussed around tissue-repair, inflammation, blood-vessel and pain-related biology.

Evidence:Mostly lab/animalRisk:High risk

Updated Jun 27, 2026 · 9 sources

Read the simple answer
LHN branded editorial cover for article: What is TB-500?.

Question

What is TB-500?

TB-500 is a peptide name used in recovery marketing and often linked to thymosin beta-4 biology.

Evidence:Early theoryRisk:High risk

Updated Jun 27, 2026 · 6 sources

Read the simple answer
LHN branded editorial cover for article: What is MOTS-c?.

Question

What is MOTS-c?

MOTS-c is a mitochondrial-derived peptide discussed for metabolism, exercise biology and longevity.

Evidence:Mostly lab/animalRisk:Experimental

Updated Jun 27, 2026 · 3 sources

Read the simple answer
LHN branded editorial cover for article: What is Epitalon?.

Question

What is Epitalon?

Epitalon, also written Epithalon, is discussed for sleep, telomere and lifespan claims.

Evidence:Early theoryRisk:Experimental

Updated Jun 27, 2026 · 3 sources

Read the simple answer
LHN branded editorial cover for safety guide: What are peptide red flags?.

Safety guide

What are peptide red flags?

Red flags include miracle recovery claims, no clear approved use, research-use labels aimed at consumers, pressure to buy bundles, no adverse-event d...

Evidence:Commercial claimRisk:High risk

Updated Jun 27, 2026 · 3 sources

Read the simple answer

Longevity drugs

Real medicines discussed as geroprotectors, with approved-use and off-label context separated.

LHN branded editorial cover for article: What is rapamycin?.

Question

What is rapamycin?

Rapamycin, also known as sirolimus, is a real medicine approved for specific uses and a serious geroscience candidate.

Evidence:Human trial evidenceRisk:High risk

Updated Jun 27, 2026 · 2 sources

Read the simple answer
LHN branded editorial cover for article: What is metformin?.

Question

What is metformin?

Metformin is a widely used diabetes drug and a serious geroscience candidate. It is not proven to extend lifespan in healthy non-diabetic adults.

Evidence:Human observational evidenceRisk:Moderate risk

Updated Jun 27, 2026 · 3 sources

Read the simple answer

NAD and supplements

Biomarker claims, mitochondrial claims and supplement marketing translated into plain English.

LHN branded editorial cover for explainer: What is NAD?.

Mechanism

What is NAD?

NAD is a molecule involved in energy metabolism and repair pathways.

Evidence:Early theoryRisk:Lower risk

Updated Jun 27, 2026 · 2 sources

Read the simple answer
LHN branded editorial cover for article: Does NMN raise NAD?.

Question

Does NMN raise NAD?

Some human evidence suggests specific NMN formulations can raise circulating NAD-related measures.

Evidence:Human trial evidenceRisk:Moderate risk

Updated Jun 27, 2026 · 2 sources

Read the simple answer
LHN branded editorial cover for article: Does NR raise NAD?.

Question

Does NR raise NAD?

NR has human-study interest as an NAD precursor, but raising NAD-related markers does not automatically prove longevity benefit.

Evidence:Human trial evidenceRisk:Moderate risk

Updated Jun 27, 2026 · 3 sources

Read the simple answer
LHN branded editorial cover for article: What is MOTS-c?.

Question

What is MOTS-c?

MOTS-c is a mitochondrial-derived peptide discussed for metabolism, exercise biology and longevity.

Evidence:Mostly lab/animalRisk:Experimental

Updated Jun 27, 2026 · 3 sources

Read the simple answer

Biological age and biomarkers

What tests and biomarkers can tell you, and where the interpretation gets too confident.

LHN branded editorial cover for article: Best biomarkers for longevity beginners.

Question

Best biomarkers for longevity beginners

Beginners usually get more value from clinically grounded markers such as blood pressure, ApoB, glucose-related markers, fitness, body composition, s...

Evidence:Human observational evidenceRisk:Lower risk

Updated Jun 27, 2026 · 2 sources

Read the simple answer
LHN branded editorial cover for article: VO2 max and longevity.

Question

VO2 max and longevity

VO2 max is a measure of cardiorespiratory fitness and is strongly relevant to longevity discussions.

Evidence:Human observational evidenceRisk:Lower risk

Updated Jun 27, 2026 · 1 sources

Read the simple answer
LHN branded editorial cover for article: What is an OATS or OAT test?.

Question

What is an OATS or OAT test?

An organic-acid test measures metabolites in urine and can be useful in specific clinical-laboratory contexts.

Evidence:Human observational evidenceRisk:Lower risk

Updated Jun 27, 2026 · 1 sources

Read the simple answer

Gene therapy and frontier science

Approved medical uses, experimental frontier work and age-reversal claims kept separate.

LHN branded editorial cover for explainer: What is gene therapy?.

Mechanism

What is gene therapy?

Gene therapy changes or delivers genetic material to treat a specific disease or biological target.

Evidence:Regulatory watchRisk:Experimental

Updated Jun 27, 2026 · 1 sources

Read the simple answer

Questions people are actually asking

Community-style search questions answered safely, without protocols, sourcing or hype.

LHN branded editorial cover for article: What is MOTS-c?.

Question

What is MOTS-c?

MOTS-c is a mitochondrial-derived peptide discussed for metabolism, exercise biology and longevity.

Evidence:Mostly lab/animalRisk:Experimental

Updated Jun 27, 2026 · 3 sources

Read the simple answer
LHN branded editorial cover for article: What are bioregulators?.

Question

What are bioregulators?

Bioregulator is a broad term used in some peptide and longevity communities, often around short peptide complexes and organ-system claims.

Evidence:Early theoryRisk:High risk

Updated Jun 27, 2026 · 3 sources

Read the simple answer
LHN branded editorial cover for article: What is Epitalon?.

Question

What is Epitalon?

Epitalon, also written Epithalon, is discussed for sleep, telomere and lifespan claims.

Evidence:Early theoryRisk:Experimental

Updated Jun 27, 2026 · 3 sources

Read the simple answer

Senolytics and basics

Cellular aging, senolytic claims and the less glamorous basics with stronger human relevance.

LHN branded editorial cover for knowledge guide: Longevity basics that actually matter.

Guide

Longevity basics that actually matter

The strongest longevity basics are not exotic: do not smoke, maintain cardiovascular and metabolic health, build fitness and strength, sleep enough,...

Evidence:Human observational evidenceRisk:Lower risk

Updated Jun 27, 2026 · 1 sources

Read the simple answer
LHN branded editorial cover for article: Zone 2 training and longevity.

Question

Zone 2 training and longevity

Zone 2 training can be a useful way to build aerobic capacity, but the longevity target is broader cardiorespiratory fitness and consistency, not wor...

Evidence:Human observational evidenceRisk:Lower risk

Updated Jun 27, 2026 · 1 sources

Read the simple answer
Browse every public guide

This keeps the curated page calm while giving readers and crawlers a complete internal path to every published knowledge guide.

BPC-157: what it is, what people claim and what the evidence saysTB-500: what it is, what people claim and what the evidence saysThymosin beta-4: what it is, what people claim and what the evidence saysWhat is BPC-157?What does BPC-157 do?How do people take BPC-157? The safe answer before you copy the internetWhere do people get BPC-157? Legal routes, grey markets and what to avoidWhat doctors prescribe BPC-157? How to think about clinicians, indications and red flagsIs BPC-157 FDA-approved?Is BPC-157 legal?BPC-157 side effects and risks: what is actually known?BPC-157 for gut health: what evidence exists?BPC-157 for tendon and ligament injuries: why the evidence gap mattersBPC-157 vs TB-500: what is the difference?BPC-157: research chemical vs compounded productBPC-157 for athletes: WADA and USADA riskWhy is BPC-157 everywhere online?What is TB-500?What is thymosin beta-4?TB-500 vs thymosin beta-4: what is the difference?What does TB-500 do?How do people take TB-500? The safe answerWhere do people get TB-500? Legal and safety contextIs TB-500 FDA-approved?Is TB-500 legal?TB-500 side effects and risksTB-500 for injury recovery: why the claim runs ahead of evidenceTB-500 and wound healing: what regulators are actually reviewingWhy TB-500 recovery claims run ahead of evidencePeptides, explained simply: approved medicines, clinic claims and research chemicalsWhat is peptide therapy?Are peptides legal?Are compounded peptides FDA-approved?What is a research peptide?What does 'for research use only' mean?Where do people get peptides? Legal routes, grey markets and risksWhat doctors prescribe peptides?What is a compounding pharmacy?How do compounding pharmacies differ from FDA-approved drug manufacturers?Why peptide purity, identity and sterility matterWhat questions should I ask before considering peptide therapy?What are peptide red flags?What does FDA Category 2 mean for peptides?What is the FDA 503A bulk substances list?FDA peptide review: what the July 2026 meeting actually coversWhy internet peptide claims may not match regulatory reviewPeptides and athletes: WADA, USADA and anti-doping riskPeptide stacks: why LHN does not provide stack adviceAre oral peptides different from injectable peptides?If peptides are not approved for anti-aging, how are people getting them?Research chemicals, compounding pharmacies and clinics: the differenceDIY peptide injections and why doctors are worriedLongevity drugs, explained simplyWhat is rapamycin?Why is rapamycin discussed for longevity?What did the PEARL rapamycin trial show?Rapamycin risks and side effectsRapamycin and mTOR, explained simplyWhy rapamycin is off-label for longevityWhat to ask a doctor about rapamycinWhat is metformin?Metformin risks and side effectsMetformin vs rapamycin for longevity claimsNAD and supplements, explained simplyWhat is NAD?NMN vs NR: what is the difference?Does NMN raise NAD?Does NR raise NAD?NAD IV drips: evidence and risksWhy raising a biomarker is not the same as extending lifespanBiological age and biomarkers, explained simplyChronological age vs biological ageWhat is an epigenetic clock?What is DunedinPACE?Do biological age tests tell you how long you will live?Can you reverse your biological age score?Best biomarkers for longevity beginnersVO2 max and longevityGene therapy and age reversal, explained simplyWhat is gene therapy?Approved gene therapies vs anti-aging gene therapyWhat is partial reprogramming?What are OSK factors?What is CRISPR?Telomerase therapy and cancer-risk questionsStem cells, exosomes and longevitySenolytics and cellular aging, explained simplyWhat are senescent cells?What are senolytics?Does fisetin clear senescent cells in humans?Dasatinib plus quercetin: research therapy, not a DIY protocolAutophagy, explained simplyAMPK, explained simplyLongevity basics that actually matterWhat actually works in longevity before experimental interventions?Exercise and longevity, explained simplyZone 2 training and longevitySemaglutide vs tirzepatide vs retatrutide: the safe plain-English comparisonDo GLP-1 drugs cause muscle loss?Protein, leucine and BCAAs on GLP-1s: what is evidence and what is gym lore?Where do people get peptides? The safe answer before you copy the internetWhat is MOTS-c?What is red light therapy?Semax vs Selank: what is the difference?What are bioregulators?What is Epitalon?What is an OATS or OAT test?DNA testing, MTHFR and longevity claimsGHK-Cu for skin and hair: what is realistic?Klotho gene therapy claims: why frontier does not mean proven

Get the weekly longevity evidence briefing.

One plain-English email on the claims, studies and regulatory updates worth knowing - without protocols, hype or miracle claims.

No protocols. No miracle claims. No spam.

Choose your interests