Goal guide
Best compounds
for longevity
Longevity is not one mechanism - it is five. This guide covers the compounds with the best evidence across each biological pillar, organized by what they actually address.
The honest baseline
Compounds slow decline. They do not stop it.
Exercise, sleep, diet, and stress management remain the primary drivers of healthspan. These compounds address biological mechanisms that lifestyle alone cannot fully reach - particularly after 40.
~15%
Decline in nocturnal GH pulse per decade after age 30
5 pillars
No single compound covers all of them
Pillar 01
GH and sleep is the highest-leverage starting point for most people over 35
Pillar 01 · GH & Sleep Architecture
The nightly reset your body is built around
Growth hormone governs tissue repair, fat metabolism, immune function, and cognitive restoration - driven by a GH pulse in the first 90 minutes of deep sleep. After 30, this pulse declines roughly 15% per decade. These compounds restore it without replacing the pituitary's natural rhythm.
MK-677
BeginnerOral · No injectionIbutamoren · oral entry point · ghrelin receptor agonist
Restores the nocturnal GH pulse with dramatic sleep improvement within 3–7 days for most users. The only oral GH secretagogue with meaningful clinical evidence. Best starting point for anyone new to GH optimization - no injection required.
Ipamorelin
IntermediateCleanest GH pulseClean injectable · pulsatile GH release · no cortisol or hunger spike
Amplifies the nocturnal GH pulse in the most physiological pattern available. Unlike GHRP-2 or GHRP-6, it produces no cortisol elevation and no hunger spike - important distinctions for long-term use and metabolic health.
Sermorelin
IntermediatePrescriptionPituitary-preservingMost medically legitimate · pituitary-stimulating · self-limiting
Stimulates your pituitary to produce its own GH rather than introducing exogenous hormone. Self-limiting via natural feedback - cannot produce supraphysiological levels. The prescription pathway makes this the most medically defensible GH option available.
Pillar 02 · Cellular & Telomere Health
Addressing aging at the chromosomal level
Telomeres - the protective caps on your chromosomes - shorten with every cell division and function as a biological aging clock. The rate of this shortening is modifiable. Epithalon is the only known compound demonstrated to activate telomerase in human somatic cells.
Epithalon
IntermediatePulse cycle onlyTetrapeptide · telomerase activator · unique mechanism
The only known compound to activate telomerase in human somatic cells - a mechanism no supplement or lifestyle intervention replicates. Also restores melatonin production via the pineal gland, with downstream effects on sleep quality and circadian rhythm.
GHK-Cu
BeginnerTopical or injectableCopper tripeptide · tissue maintenance signal · collagen synthesis
Modulates over 4,000 genes and declines sharply with age - from ~200 ng/mL at 20 to under 80 ng/mL by 60. Activates collagen synthesis, antioxidant defense, and wound healing. Available topically, which makes it the lowest-friction entry point in the cellular aging pillar.
Pillar 03 · Metabolic & Mitochondrial Health
How your cells produce energy is how fast you age
Metabolic flexibility - the ability to switch efficiently between fuel sources - declines with age and is tightly coupled to mitochondrial function. AMPK activation is the primary longevity-relevant metabolic target. Both compounds here address it through different mechanisms.
Berberine
BeginnerOTC · No Rx neededOral AMPK activator · most accessible longevity compound on this page
Activates the same AMPK pathway as metformin without a prescription. Clinically documented improvements in insulin sensitivity, fasting glucose, and LDL cholesterol. The most evidence-dense oral longevity compound available OTC, and the clearest starting point for the metabolic pillar.
MOTS-c
IntermediateMitochondria-derivedMitochondria-derived signal · AMPK activator · exercise mimetic
Encoded within mitochondrial DNA itself - a fundamentally different origin than any synthetic compound. Activates AMPK, improves metabolic flexibility and fat oxidation, and extended lifespan in aged mouse models. No oral compound produces this mechanism. Earlier in the research curve than berberine but a unique biological angle.
Pillar 04 · Immune System Aging
Immunosenescence is one of the least-discussed aging mechanisms
T-cell number and function decline significantly after 50 in a process called immunosenescence. This is not just about catching colds more often - immune surveillance of cancer cells, inflammatory regulation, and tissue homeostasis all depend on a functional adaptive immune system.
Pillar 05 · Cognitive Longevity
A longer life is only worth extending if your mind comes with it
Cognitive decline reflects declining BDNF, mitochondrial energy production in neurons, and chronic low-grade neuroinflammation - not simply age. These compounds address the underlying biology. Both are available as nasal spray and cause no sedation or dependence.
Semax
BeginnerNasal spraySynthetic ACTH analog · BDNF upregulator · nasal spray available
Meaningfully increases BDNF - the primary neurotrophin for neuronal health, learning, and memory consolidation. Fast-acting within 30–60 minutes via nasal delivery. No sedation, no dependence potential. The most direct pharmacological lever for BDNF that does not require injectable administration.
Selank
BeginnerNo tolerance or dependenceAnti-anxiety peptide · cortisol modulator · no dependence potential
Reduces cortisol without sedation or addiction risk. This matters for longevity specifically: chronic stress and elevated cortisol are independent predictors of hippocampal atrophy and accelerated cognitive aging. Selank addresses the neuroinflammatory environment, not just the symptom.
Start here: the oral stack
Before adding any injectable peptide, run this stack for 8 weeks. These three compounds are oral or topical, cover three of the five pillars, and have the strongest OTC evidence base on this page. If you have not maxed this out, you are not ready for the more complex options.
Longevity foundation stack
Berberine: 500 mg × 3 daily with meals
MK-677: 10–25 mg nightly (oral)
GHK-Cu: 1–3% serum applied topically, daily
100% oral or topical · No injection · No PCT · ~$60–80/month
Protocol structure
How to cycle your compounds
Not all longevity compounds run on the same schedule. Stacking everything daily is unnecessary and ignores how each compound works.
Daily, ongoing
No known accumulation risk at recommended doses. Run continuously.
Daily · 8-week check-in
Check IGF-1 and fasting glucose at 8 weeks. Some protocols cycle 5 days on, 2 days off to preserve receptor sensitivity.
Weekly · cycle 8–12 weeks
Run for a defined cycle, then assess bloodwork and symptoms before continuing. No established long-term continuous-use data yet.
1–2 pulse cycles per year
10–20 consecutive days per cycle. Best scheduled between your other protocols rather than stacked on top of them.
What goes wrong
Common mistakes on a longevity protocol
Skipping bloodwork before GH secretagogues
IGF-1 and fasting glucose must be baselined before MK-677 or Ipamorelin. GH elevation impairs insulin sensitivity - you need a before number to know if the protocol is working or causing metabolic harm.
Running Epithalon continuously
Epithalon is a pulse-cycle compound: 10–20 days on, months off. Running it daily provides no additional benefit and generates unnecessary peptide load. One or two cycles per year is the established protocol.
Adding injectables before mastering the orals
Berberine, MK-677, and topical GHK-Cu cover three pillars with no injection. Run these for 8 weeks and assess. Most people see meaningful changes before they need to consider needles.
Stacking multiple GH secretagogues simultaneously
Combining MK-677 with Ipamorelin or Sermorelin is not additive - GH feedback limits the ceiling. Pick one per protocol period. Stacking increases cost, complexity, and side effect exposure without proportional benefit.
Treating longevity compounds as a substitute for lifestyle
These compounds address mechanisms lifestyle cannot fully reach - not mechanisms you have not yet tried. Sleep, training, and dietary quality determine the baseline these compounds modify. Without that baseline, the ceiling is very low.
Bloodwork markers to watch
IGF-1
Target: 200–300 ng/mL
Primary GH axis marker. Baseline before starting any GH secretagogue, retest at 8–12 weeks.
Fasting glucose
Target: < 100 mg/dL
GH elevation impairs insulin sensitivity. Monitor quarterly on MK-677 especially.
HbA1c
Target: < 5.7%
Longer-term metabolic health. Especially relevant for Berberine and MOTS-c efficacy monitoring.
hsCRP
Target: < 1 mg/L
Systemic inflammation marker. Useful baseline for Thymosin Alpha-1 immune protocols.
Total Testosterone
Target: Age-appropriate
Relevant for GH axis compounds that interact with the androgen environment, particularly in men over 40.
DHEA-S
Target: Age-appropriate
Declines sharply with age and is an independent longevity biomarker. Useful reference point for overall hormonal age.
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