What peptides are studied for longevity?

The longevity peptide research space spans several distinct mechanisms: telomere/epigenetic (epitalon, studied for telomerase activation in rodent lifespan models), mitochondrial (SS-31/elamipretide, MOTS-c), immune senescence (thymosin alpha-1), GH-axis restoration (CJC-1295, ipamorelin — for age-related GH decline, not lifespan per se), tissue repair (BPC-157, TB-500), and cognitive neuroprotection (Semax, Selank/BDNF). Of these, only GH secretagogues, BPC-157, TB-500, and nootropic peptides have meaningful human research; the others are mostly animal or cell models. All are research-use-only compounds, and none has FDA approval for a longevity or anti-aging indication.

Does epitalon actually extend lifespan?

In animal models: yes, in the rodent data. Anisimov and colleagues published a series of studies showing 13–14% lifespan extension in outbred mice and reduced spontaneous tumor incidence. The mechanism studied is telomerase activation in somatic cells and pineal/melatonin modulation. The honest qualification is critical: these are rodent studies from one research group, and there are no large-scale controlled human trials measuring longevity outcomes. 'The animal data are interesting' and 'it extends human lifespan' are very different claims. Research use only.

What's the difference between peptides for longevity and peptides for anti-aging?

In practice the two search terms overlap heavily — both describe research into compounds that might slow, reverse, or counteract age-related biological changes. The distinction worth keeping is mechanism: some peptides target cellular lifespan (telomerase, mitochondrial biogenesis), others target functional decline (GH restoration, tissue repair, cognitive neuroprotection). The former has weaker human evidence; the latter has more direct human data but for a more limited biological endpoint than 'extending life.' A GH secretagogue does not make you live longer in any trial; it does restore measurably depleted GH levels, which has its own clinical relevance.

Which longevity peptides does Titan actually stock?

Titan's in-stock SKUs with longevity-adjacent research context: CJC-1295 + Ipamorelin Blend $119.99 (GH-axis restoration studies), BPC-157 vial $54.99 (tissue repair research), TB-500 vial $89.99 (repair/reepithelialization), Semax nasal spray $59.99 (BDNF/neuroprotection), Selank nasal spray $59.99 (BDNF/anxiolytic), DSIP nasal spray $62.99 (circadian/sleep research). Titan does not stock epitalon, MOTS-c, SS-31, thymosin alpha-1, GHK-Cu, NAD+, or LL-37.

Is there a human-tested peptide for anti-aging?

The closest thing to an approved human-tested compound in this space is thymosin alpha-1 (Zadaxin) — approved in 37+ countries for hepatitis B/C and HIV-associated immune reconstitution, and studied for immune senescence. SS-31 (elamipretide) has FDA approval for Barth syndrome and multiple Phase III trials in other mitochondrial diseases. CJC-1295 and ipamorelin have human pharmacokinetic and GH-response data in healthy adults. None has an FDA anti-aging indication, and none should be used for any human health purpose outside a licensed clinical research setting. Research use only.

peptides for longevity · anti-aging research · research use only

Peptides for longevity: what the research actually studies.

If you search for 'peptides for longevity,' you will encounter several overlapping research categories that are often mixed together: telomere biology (epitalon), mitochondrial function (SS-31, MOTS-c), immune regulation (thymosin alpha-1), growth-hormone-axis restoration (CJC-1295, ipamorelin), and tissue repair (BPC-157, TB-500). These are not interchangeable — they target distinct biological mechanisms, have very different evidence bases, and are at completely different stages of human research. The compound with the most-discussed longevity data — epitalon, a synthetic tetrapeptide studied for telomerase activation — has its most striking results in animal models (Anisimov et al. found a 13–14% lifespan extension in mice and reduced spontaneous tumor incidence in rodent models; Neuroendocrinol Lett 2003). Growth-hormone secretagogues like CJC-1295 and ipamorelin have stronger human data, but for a different mechanism: restoring age-related GH decline, not extending lifespan per se. This page reproduces the published research as a reference. It is strictly research-use-only material — not medical advice, not anti-aging therapy guidance, and not a recommendation to use any peptide for any health purpose. Titan Peptide Lab notes which compounds it stocks and which it does not; we will not pretend to stock what we do not carry.

CJC-1295 + Ipamorelin — $119.99 Recovery Research Starter Bundle

Epitalon: the telomere-focused tetrapeptide

Epitalon (Ala-Glu-Asp-Gly, also written Epithalon) is the peptide most frequently cited in longevity-focused research. The core finding is from Anisimov and colleagues at the N.N. Petrov Research Institute of Oncology: in a series of rodent studies, epitalon reduced spontaneous tumor incidence and extended mean lifespan by 13–14% in outbred mice. The proposed mechanism is telomerase activation in somatic cells and modulation of melatonin production by the pineal gland. The honest qualification: these are animal data; controlled human trials measuring lifespan or telomere length are absent, and this is preclinical research only. Titan does not stock epitalon — see where-to-buy-epitalon for sourcing context. The evidence merits monitoring; it does not support clinical claims.

Epitalon sourcing guide →

GH secretagogues: the age-related GH-decline angle

Growth hormone and its downstream signal IGF-1 decline measurably with age — this is well-established physiology, not a hypothesis. CJC-1295 and ipamorelin are two research peptides studied for their ability to stimulate GH secretion. Teichman et al. (JCEM 2006;91:799-805, PMID 16352683) found CJC-1295 elevated GH 2–10× and IGF-1 1.5–3× in healthy adults across several days after a single dose; Raun et al. (Eur J Endocrinol 1998;139:552-561, PMID 9849822) found ipamorelin was a selective GH secretagogue without the cortisol or prolactin elevation seen with other GHRPs. The longevity relevance: this is not 'extending lifespan data' but 'restoring a measurably depleted hormonal signal to youthful levels in research settings.' A different and more defensible framing. Titan stocks CJC-1295 + Ipamorelin Blend at $119.99.

CJC-1295 + Ipamorelin — $119.99 →

Mitochondrial peptides: SS-31 and MOTS-c

Mitochondrial dysfunction is one of the recognized hallmarks of cellular aging (López-Otín et al. Cell 2013). SS-31 (Elamipretide) is a mitochondria-targeted peptide that concentrates in the inner mitochondrial membrane and is studied for its effects on electron transport chain efficiency. MOTS-c is a mitochondrial-derived peptide investigated for metabolic regulation and insulin sensitivity. Neither is a Titan SKU. The evidence is stronger in animal and cell models than in large human trials; SS-31 has the most mature clinical pipeline, with FDA approval in Barth syndrome (a mitochondrial cardiomyopathy) and ongoing Phase III work. Research context, not a longevity treatment recommendation.

SS-31 sourcing guide →

Tissue-repair peptides: BPC-157 and TB-500

BPC-157 (Body Protection Compound) and TB-500 (thymosin beta-4 fragment) are the most-studied repair-oriented research peptides with the most direct tendon, muscle, and vascular data. They do not extend lifespan directly in the research literature, but they appear repeatedly in discussions of maintaining tissue function under stress — tendons, gut lining, vascular tone — which is adjacently relevant to functional longevity. Chang et al. (J Appl Physiol 2011;110:774-780, PMID 21030672) is the anchor BPC-157 tendon study; Malinda et al. (J Invest Dermatol 1999;113:364-368, PMID 10469335) anchors TB-500/Tβ4 reepithelialization data. Titan stocks both: BPC-157 vial at $54.99, TB-500 vial at $89.99, or the Recovery Research Starter Bundle at $127.99.

Recovery peptide guide →

Cognitive longevity: Semax and Selank

Cognitive decline is a defining feature of biological aging. Two peptides studied in the Russian clinical literature for neuroprotection and cognitive support are Semax (a synthetic ACTH 4-7 analogue) and Selank (a synthetic tuftsin analogue). Semax upregulates BDNF and NGF mRNA in hippocampal and cortical tissue (Dolotov et al. 2006, PMID 16996037; Agapova 2008, PMID 18756821); Selank shows anxiolytic effects while also increasing BDNF (Kolik 2019, PMID 31625062). The honest qualification: most studies are small, older, and conducted primarily in Russian research settings, and neither is FDA-approved. The longevity angle is neuroprotective-pathway research, not a clinical intervention for cognitive decline. Titan stocks both as nasal sprays at $59.99 each.

Nootropic peptide research guide →

What Titan actually stocks

Titan's in-stock SKUs for the longevity-adjacent research space: CJC-1295 + Ipamorelin Blend $119.99 (GH-axis restoration), BPC-157 vial $54.99 and TB-500 vial $89.99 (tissue repair), Semax nasal spray $59.99 and Selank nasal spray $59.99 (neuroprotective/cognitive), and DSIP nasal spray $62.99 (sleep-circadian research). What Titan does not stock: epitalon, MOTS-c, SS-31, thymosin alpha-1, GHK-Cu, NAD+, LL-37. The where-to-buy pages on this site for those compounds provide sourcing context and COA guidance but are not Titan product pages.

Full Titan catalog →

The detail, in plain terms

Longevity peptide research — evidence at a glance.

Compounds below are grouped by mechanism, not by efficacy claim. Evidence column reflects the strongest published data; human evidence column flags the reality check. Research use only.

Epitalon (AEDG): Telomerase activation + pineal/melatonin modulation. Strongest data: 13–14% lifespan extension + reduced tumor incidence in mice (Anisimov, Neuroendocrinol Lett 2003). Human data: absent at scale. Titan: NOT stocked.
CJC-1295 + Ipamorelin: GH secretagogues studied for age-related GH decline restoration. Human data: GH 2–10×, IGF-1 1.5–3× (Teichman JCEM 2006). Selective GH release, no cortisol/prolactin spike (Raun 1998). Titan: IN STOCK $119.99.
SS-31 (Elamipretide): Inner mitochondrial membrane targeting, electron transport chain efficiency. Phase III data in Barth syndrome (FDA-approved indication). Animal longevity data strong; human lifespan data absent. Titan: NOT stocked.
MOTS-c: Mitochondrial-derived peptide; metabolic regulation, insulin sensitivity. Mostly preclinical (mouse exercise endurance, metabolic syndrome models). Human data early. Titan: NOT stocked.
BPC-157 vial: Tissue repair; tendon fibroblast outgrowth/FAK-paxillin (Chang 2011); angiogenesis via VEGFR2-Akt-eNOS (Hsieh 2017). Animal/cell data; no large human RCT. Category 2 delist Apr 2026 / PCAC Jul 2026. Titan: IN STOCK $54.99.
TB-500 (Tβ4 fragment): Thymosin beta-4 derived; reepithelialization (Malinda 1999; 42→61% vs control) + actin polymerization. Animal/cell data dominant. Titan: IN STOCK $89.99.
Semax (ACTH 4-7 Pro-Gly-Pro): BDNF/NGF upregulation hippocampal/cortical; rapid 20–90 min gene dynamics (Agapova 2008). Small Russian studies; not FDA-approved. Neuroprotection angle. Titan: IN STOCK $59.99.
Thymosin alpha-1: 28-mer N-acetylated immune modulator; FDA-approved as Zadaxin in 37 countries for hepatitis B/C; studied for immune senescence. Not stocked by Titan — see sourcing guide.

Questions researchers ask

Before you order.

What peptides are studied for longevity?: The longevity peptide research space spans several distinct mechanisms: telomere/epigenetic (epitalon, studied for telomerase activation in rodent lifespan models), mitochondrial (SS-31/elamipretide, MOTS-c), immune senescence (thymosin alpha-1), GH-axis restoration (CJC-1295, ipamorelin — for age-related GH decline, not lifespan per se), tissue repair (BPC-157, TB-500), and cognitive neuroprotection (Semax, Selank/BDNF). Of these, only GH secretagogues, BPC-157, TB-500, and nootropic peptides have meaningful human research; the others are mostly animal or cell models. All are research-use-only compounds, and none has FDA approval for a longevity or anti-aging indication.
Does epitalon actually extend lifespan?: In animal models: yes, in the rodent data. Anisimov and colleagues published a series of studies showing 13–14% lifespan extension in outbred mice and reduced spontaneous tumor incidence. The mechanism studied is telomerase activation in somatic cells and pineal/melatonin modulation. The honest qualification is critical: these are rodent studies from one research group, and there are no large-scale controlled human trials measuring longevity outcomes. 'The animal data are interesting' and 'it extends human lifespan' are very different claims. Research use only.
What's the difference between peptides for longevity and peptides for anti-aging?: In practice the two search terms overlap heavily — both describe research into compounds that might slow, reverse, or counteract age-related biological changes. The distinction worth keeping is mechanism: some peptides target cellular lifespan (telomerase, mitochondrial biogenesis), others target functional decline (GH restoration, tissue repair, cognitive neuroprotection). The former has weaker human evidence; the latter has more direct human data but for a more limited biological endpoint than 'extending life.' A GH secretagogue does not make you live longer in any trial; it does restore measurably depleted GH levels, which has its own clinical relevance.
Which longevity peptides does Titan actually stock?: Titan's in-stock SKUs with longevity-adjacent research context: CJC-1295 + Ipamorelin Blend $119.99 (GH-axis restoration studies), BPC-157 vial $54.99 (tissue repair research), TB-500 vial $89.99 (repair/reepithelialization), Semax nasal spray $59.99 (BDNF/neuroprotection), Selank nasal spray $59.99 (BDNF/anxiolytic), DSIP nasal spray $62.99 (circadian/sleep research). Titan does not stock epitalon, MOTS-c, SS-31, thymosin alpha-1, GHK-Cu, NAD+, or LL-37.
Is there a human-tested peptide for anti-aging?: The closest thing to an approved human-tested compound in this space is thymosin alpha-1 (Zadaxin) — approved in 37+ countries for hepatitis B/C and HIV-associated immune reconstitution, and studied for immune senescence. SS-31 (elamipretide) has FDA approval for Barth syndrome and multiple Phase III trials in other mitochondrial diseases. CJC-1295 and ipamorelin have human pharmacokinetic and GH-response data in healthy adults. None has an FDA anti-aging indication, and none should be used for any human health purpose outside a licensed clinical research setting. Research use only.