Research guide
Best Peptides for Longevity Research
Longevity and aging research is a broad field spanning telomere biology, mitochondrial function, cellular senescence, and immune regulation. Several peptides and compounds have emerged as key tools in these research areas, each addressing a different axis of the aging process. This page compares five compounds commonly used in longevity-oriented laboratory research, with their mechanisms, research applications, and how to choose between them. All products are supplied as lyophilised research compounds for in-vitro laboratory use only.
At a glance
Quick comparison of the compounds covered on this page.
| Compound | Key research areas | Product page |
|---|---|---|
| Epitalon | Telomere length and telomerase activity, Pineal gland function and melatonin | View |
| GHK-Cu | Skin aging and wound-healing research, Gene-expression profiling studies | View |
| MOTS-c | Mitochondrial function and bioenergetics, AMPK pathway and metabolic signalling | View |
| NAD+ | Sirtuin and PARP substrate research, DNA repair and genomic stability | View |
| Thymosin Alpha-1 | Immunosenescence and thymic function, Dendritic cell maturation | View |
1. Epitalon
Mechanism and research context
Epitalon (Epithalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) studied as a bioregulator in telomere and pineal-gland research. Laboratory models have examined its relationship to telomerase activity and melatonin production. It is one of the most-cited peptides in the bioregulation literature originating from Russian gerontology research.
Key research areas
Purity and supply
Supplied as a lyophilised research compound against a batch specification of at least 98% HPLC purity. Selected lots are independently tested by Janoshik Analytical, with each report published in the COA Vault and verifiable on Janoshik's own portal. CertaPeptides is a reseller -- we supply Epitalon as provided by our supplier.
2. GHK-Cu
Mechanism and research context
GHK-Cu is the copper-bound form of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine. It is widely used in skin, wound-healing, and cosmetic-formulation research. Studies have examined its gene-expression effects, suggesting it may modulate hundreds of genes involved in tissue remodelling and inflammation, making it a compound of interest in aging research.
Key research areas
Purity and supply
Supplied as a lyophilised research compound against a batch specification of at least 98% HPLC purity. Selected lots are independently tested by Janoshik Analytical, with each report published in the COA Vault and verifiable on Janoshik's own portal. CertaPeptides is a reseller -- we supply GHK-Cu as provided by our supplier.
3. MOTS-c
Mechanism and research context
MOTS-c is a mitochondrial-derived peptide encoded within the mitochondrial genome. It is studied in metabolic and longevity research for its role in cellular energy signalling, particularly through AMPK pathway activation. Research has examined its effects on metabolic homeostasis and exercise-mimetic activity in laboratory models.
Key research areas
Purity and supply
Supplied as a lyophilised research compound against a batch specification of at least 98% HPLC purity. Selected lots are independently tested by Janoshik Analytical, with each report published in the COA Vault and verifiable on Janoshik's own portal. CertaPeptides is a reseller -- we supply MOTS-c as provided by our supplier.
4. NAD+
Mechanism and research context
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme central to cellular energy metabolism and redox biology. It serves as a substrate for sirtuins and PARPs, enzymes implicated in DNA repair and cellular stress responses. Declining NAD+ levels are a hallmark of aging studied across multiple model organisms.
Key research areas
Purity and supply
Supplied as a lyophilised research compound against a batch specification of at least 98% HPLC purity. Selected lots are independently tested by Janoshik Analytical, with each report published in the COA Vault and verifiable on Janoshik's own portal. CertaPeptides is a reseller -- we supply NAD+ as provided by our supplier.
5. Thymosin Alpha-1
Mechanism and research context
Thymosin Alpha-1 (Ta1) is a 28-amino-acid peptide derived from thymosin fraction 5, studied extensively in immunology research. Its immunomodulatory activity has been examined in the context of immune aging (immunosenescence), where declining thymic function contributes to age-related immune dysfunction.
Key research areas
Purity and supply
Supplied as a lyophilised research compound against a batch specification of at least 98% HPLC purity. Selected lots are independently tested by Janoshik Analytical, with each report published in the COA Vault and verifiable on Janoshik's own portal. CertaPeptides is a reseller -- we supply Thymosin Alpha-1 as provided by our supplier.
How to choose
The choice depends on the specific aging axis under investigation. For telomere-focused research, Epitalon is the primary reference compound. For skin and tissue remodelling, GHK-Cu has the deepest literature. Mitochondrial and metabolic aging research typically uses MOTS-c, while NAD+ is the standard substrate for sirtuin and PARP research. Thymosin Alpha-1 addresses the immune-aging axis. These compounds target non-overlapping mechanisms, so researchers studying multiple aging pathways may use several in parallel rather than choosing one over another.
Further reading
All products sold by CertaPeptides are intended for laboratory research use only and are not for human or animal consumption. CertaPeptides (CERTALAB S.R.L.) is a reseller, not a manufacturer -- we supply each compound as provided by our supplier and do not make any medical, therapeutic, or efficacy claims. The research areas described on this page reflect topics covered in the published scientific literature and do not constitute recommendations for any specific application.