Function hub
Longevity-research peptides (UK overview)
Longevity-research peptides target mechanisms believed to slow biological ageing: mitochondrial function (MOTS-c, SS-31), telomere and pineal regulation (Epitalon), copper-driven skin and tissue maintenance (GHK-Cu), and NNMT inhibition (5-Amino-1MQ). All are research-tier in the UK.
The longevity-peptide research lane sits at the intersection of mitochondrial biology, copper-driven repair, and pineal regulation. None of these compounds is a UK-licensed longevity medicine. The body of evidence is preclinical, animal-model, and in some cases historical Russian research that has not been replicated in modern Western trials.
MOTS-c is a 16-amino-acid peptide encoded within the mitochondrial 12S rRNA gene. Discovered in 2015, it is the best-characterised mitochondrial-derived peptide. Preclinical literature reports effects on insulin sensitivity, exercise capacity, and metabolic ageing markers in rodent models. The compound is widely stocked across UK research peptide retailers, typically priced from around £40 to £55 per 5mg vial.
Epitalon (also spelled Epithalon) is a tetrapeptide developed by Russian researcher Vladimir Khavinson at the St Petersburg Institute of Bioregulation. Russian research lineage spans four decades and includes claims of life-extension effects in mice and elderly human cohorts. The Russian research has not been independently replicated in Western trials. UK retailers stock Epitalon typically as 10mg vials.
GHK-Cu (Copper Tripeptide-1) is a glycine-histidine-lysine sequence bound to copper. Originally identified in human plasma where its concentration declines with age (from around 200ng/ml in young adults to around 80ng/ml at age 60), it has both cosmetic-skincare and longevity-research applications. The cosmetic-peptide lane sells topical GHK-Cu under licensed skincare framing. The research-peptide lane sells injectable GHK-Cu under research-use-only framing.
5-Amino-1MQ is a small-molecule inhibitor of NNMT (nicotinamide N-methyltransferase), an enzyme that depletes the NAD+ precursor pool. Preclinical work suggests NNMT inhibition supports fat loss, muscle preservation, and metabolic ageing markers. UK availability is research-tier.
SS-31 (Elamipretide) is a cardiolipin-binding peptide developed by Stealth Biotherapeutics. It has reached phase 3 clinical trials for rare mitochondrial diseases. UK availability is research-tier outside of clinical trial enrolment.
Pricing in this category sits at the higher end of the research peptide segment. Per-batch third-party CoA documentation is again the key trust signal, particularly for less common compounds like SS-31 and Epitalon where counterfeit risk is meaningfully higher than for BPC-157 or TB-500.
Compounds in this category
MOTS-c
Mitochondrial-derived 16-residue peptide. Preclinical evidence for insulin sensitivity and exercise capacity in rodent models.
Read the encyclopedia entryEpitalon
Russian-research tetrapeptide. Four decades of preclinical lineage from the St Petersburg Institute of Bioregulation.
Read the encyclopedia entryGHK-Cu (injectable)
Copper-tripeptide. Cosmetic lane uses topical, research lane uses injectable. Same molecule, different framing.
Read the encyclopedia entry5-Amino-1MQ
Encyclopedia buildingSmall-molecule NNMT inhibitor. NAD+ precursor preservation. Encyclopedia entry building.
SS-31 (Elamipretide)
Encyclopedia buildingCardiolipin-binding peptide. Phase 3 trials for rare mitochondrial disease. Encyclopedia entry building.
UK retailers stocking this category
See CoA Trust Index →Ranked by CoA Trust tier (strong, partial, weak). Editorial commentary based on publicly available information. We earn a referral fee when readers click through and convert.
Researchers wanting named-stack bundles (Wolverine, KLOW, Glow) and CoAs that can be QR-verified to a named third-party lab.
Research peptide retailer · Wolverine Stack £29.99, BPC-157 single from £14.99
Nottingham-based research peptide retailer (Bio Research Ltd, since 2024). Bundles and stacks are the hero SKU (Wolverine BPC-157 + TB-500, Tesamorelin + Ipamorelin 3:1, KLOW, Glow). Janoshik third-party CoAs published per batch with QR-code verification. 10-vial bulk packs alongside singles. Wholesale tier above 11 vials.
Best for per-batch CoA library
Research peptide retailer · BPC-157 5mg £13.99, TB-500 5mg £36
Long-established UK research peptide supplier. 12 years trading, 15,000+ customers. Operates a public CoA subdomain (coa.purepeptidesuk.com) with downloadable per-batch certificates linked from every PDP. Dual-tier purity (Standard vs Premium with endotoxin LAL + heavy-metal testing on Premium).
Researchers who want transparent third-party HPLC batch documents and a less hyped brand voice.
Research peptide retailer · Per peptide, varies
UK research peptide retailer with third-party HPLC plus transparent batch documentation. Plays the credibility lane alongside Pure Peptides UK and Tide Labs.
Researchers who weight UKAS lab accreditation specifically and want the loudest external-verification claim in the segment.
Research peptide retailer · Per peptide, varies
UK research peptide retailer leaning on UKAS-verified HPLC as the sole-in-UK trust claim. Narrower catalogue than UKPeptides or Pure Peptides UK but the lab-verification angle is the loudest in the segment.
Best for classic peptides catalogue
Research peptide retailer · Per peptide, varies
Long-trading UK research peptide retailer (2012). Heavy on classic compounds (BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, MOTS-c). No GLP-1, no cosmetic line. CoA gated via on-site contact form (request lab report per product). On-site CusRev reviews 5.0 average, not Trustpilot. Reconstitution calculator on-site.
Frequently asked questions
Is Epitalon evidence-based?
There is a substantial body of Russian-research literature spanning four decades from the St Petersburg Institute of Bioregulation. That work has not been independently replicated in modern Western trials, so the evidence base is regarded as preliminary by mainstream Western longevity research. UK retailers sell Epitalon as a research-use-only compound.
What is the difference between cosmetic GHK-Cu and research GHK-Cu?
Same molecule, different framing and form. Cosmetic GHK-Cu is sold as topical serums under licensed skincare regulation (we cover this on the cosmetic peptides page). Research GHK-Cu is sold as injectable lyophilised vials under research-use-only framing.
Are longevity peptides legal in the UK?
They are not licensed medicines. Research peptide retailers sell them under research-use-only framing. They are not part of NHS or private clinical UK practice.
How do I sense-check a longevity peptide retailer?
CoA Trust Index. Especially in this category where counterfeit risk is higher than for BPC-157 or TB-500, demanding a per-batch third-party Certificate of Analysis from a named laboratory is the right trust threshold.
Related on PeptideClear
Editorial position
PeptideClear is a comparison and information service. We do not sell, dispense, prescribe, or recommend a specific product or medication for a specific person. Every page is editorial commentary. Every CTA leads off-site to a verified UK partner. Read our full methodology.