Research Applications: Cellular Function & Healthspan

The cellular-function side of the catalog is where most of the current healthspan literature sits — sirtuin and NAD+ work, mitochondrial peptides, telomere research, immune senescence. The compound has to be what the label says, every lot, especially in study designs running over weeks or months where compounded purity drift is the kind of variable that quietly invalidates a result. Below is what we carry, how each compound is studied, and what to verify on a COA before you commit to a vendor.

What this page is for

Cellular-function research has expanded faster than almost any other corner of the research-peptide literature over the last several years. The catalog at most research-supply vendors reflects that: NAD+ and its precursors, mitochondrial-targeted peptides, telomere-related compounds, and the immune-senescence and antioxidant pathways that intersect with longer-running healthspan study designs.

This page is the short version of what’s in CoMo’s cellular-function catalog, what each compound is studied for in research contexts, and what to check on a COA before you commit to a vendor. It’s not a buying guide — it’s a reference for a researcher deciding which catalog to work from.

For broader context, the Quality Promise covers our operational floor, and How to read a COA covers the document side. Both apply to everything below.

Cellular-function compounds at a glance

The cellular-function side of the catalog spans several distinct mechanism classes. A few notes that save time when reading vendor catalogs:

Sirtuin / NAD+ axis. NAD+ is the canonical research substrate for sirtuin-pathway work. The cofactor itself, not a precursor — distinct from NMN or NR research designs.
Mitochondrial peptides. MOTS-c is a mitochondrial-derived peptide; SS-31 is a mitochondrial-targeted peptide of distinct origin. Both appear in bioenergetics and mitochondrial-function literature but address different upstream questions.
Telomere / pineal research. Epitalon is the most-cited compound in this space, with a published research history spanning decades of Russian and international work on pineal-axis and telomere-related models.
Immune-senescence and thymus-derived. Thymosin Alpha-1 is the most-studied compound here; appears in research designs where age-related immune decline intersects with healthspan outcomes.
Copper peptides. GHK-Cu shows up in cellular-function literature on extracellular matrix and skin-aging models, distinct from its tissue-repair applications.
Antioxidant cofactors. Glutathione is the canonical research antioxidant for redox-balance studies.
GH-axis / somatopause. CJC-1295 (no DAC) is a short-half-life GHRH analog studied in research designs investigating age-related decline in GH pulsatility.

Different vendors use slightly different naming conventions, and a few of these compounds appear in multiple research contexts (GHK-Cu, Thymosin Alpha-1) where the cellular-function literature overlaps with tissue-repair work. Always check the COA against the molecule’s calculated mass — at any vendor.

CoMo’s cellular-function research catalog

Every compound listed here is in current stock. Click through for sizes, current pricing, and the per-batch COA.

NAD+ — Nicotinamide adenine dinucleotide. The canonical research substrate for sirtuin-pathway and mitochondrial-bioenergetics work. Most-cited compound in current healthspan literature on the cellular side.

MOTS-c — Mitochondrial-derived peptide encoded within the mtDNA. Studied in research models examining mitochondrial-nuclear signaling, metabolic homeostasis, and exercise-mimetic pathways.

Epitalon — Synthetic tetrapeptide originally derived from epithalamin. Decades of published research on pineal-axis signaling and telomere-related models, with continued interest in aging-research applications.

SS-31 — Mitochondrial-targeted tetrapeptide (also known as elamipretide in some research contexts). Studied in research designs investigating cardiolipin binding, mitochondrial-membrane stabilization, and ischemia-reperfusion models. Distinct mechanism from MOTS-c despite both being categorized as “mitochondrial peptides.”

Thymosin Alpha-1 — Naturally-occurring 28-amino-acid peptide derived from prothymosin α. Most-cited in immune-modulation and immune-senescence research; appears in healthspan literature on age-related immune decline.

GHK-Cu (Copper) — Tripeptide bound to copper. In cellular-function contexts, studied in extracellular matrix, gene-expression, and skin-aging models. Mechanism is well-characterized; the research overlap with tissue-repair work is substantial.

Glutathione — Tripeptide antioxidant (γ-glutamylcysteinylglycine). The canonical research substrate for redox-balance, oxidative-stress, and cellular-antioxidant studies.

CJC-1295 (no DAC) — Short-half-life GHRH (growth hormone-releasing hormone) analog. Studied in research models investigating age-related changes in GH pulsatility and the somatopause hypothesis. Distinct from the DAC-modified variant of the same molecule.

If you’d rather see the whole cellular-function slice of the catalog in grid form, the Cellular Function chip on /shop/ filters down to this set.

The Cellular Function Bundle

If you’re running a study that draws from the NAD+ axis, the mitochondrial-peptide side, and telomere-related research at the same time, the Cellular Function Bundle groups three of the most-cited compounds at a 10% discount versus buying them individually:

NAD+
MOTS-c
Epitalon

The bundle composition pairs the NAD+ axis with one mitochondrial peptide and one telomere/pineal-axis compound — the three mechanism families that show up together most often in current cellular-function study designs. As with any bundle, it’s a convenience for the way the catalog actually moves, not a recommendation about how anyone should design a study.

Why purity is the variable that matters in cellular-function research

The cellular-function compounds are mechanically diverse, and several of them — Epitalon, SS-31, MOTS-c — have shorter or less-standardized synthesis routes than the BPC-family or GLP-family compounds. That makes per-lot QC the variable that quietly differentiates serious research-supply vendors from the rest.

Two specific things to look at on a COA in this class:

Identity confirmation via mass spectrometry. Each compound has a well-characterized theoretical mass. The observed mass on the COA should match within a small tolerance. For research designs that run over weeks or months, you want this confirmed per-lot, not assumed.
HPLC purity threshold and methodology. ≥98% is the modern research-supply baseline. For longer-running cellular-function study designs in particular, batch-to-batch consistency matters as much as the absolute purity number on any one lot.

For the full read on what a COA should show, see How to read a COA. That page is vendor-agnostic; the standards there apply to any peptide supplier, including us.

How CoMo handles this

The same operational floor that applies to everything in the catalog applies to the cellular-function line:

Every batch is HPLC-tested at ≥98% purity by a third-party lab.
Every batch gets a per-lot COA, retrievable by SKU at /certificates-of-analysis/.
The lot number on the COA matches what ships — useful for any longer-running study design where you’ll want to verify back to a specific batch months later.
If a vial fails purity testing, we don’t sell the batch.

Beyond that, the rest of the CoMo Quality Promise — same-day shipping, 12-hour email response, vial-integrity replacement — applies the same way it does for the rest of the catalog.

We’re family-owned, based in Columbia, MO. We carry these compounds because the research community we work with asked us to. We’re not the only vendor doing this honestly. We just want you to be able to verify it for yourself rather than take our word for it.

Note: All CoMo Peptides products are intended for research purposes only and are not approved for human or animal consumption. All products are shipped in lyophilized form and must be reconstituted to a liquid for research and testing. We are unable to provide any dosing instructions. All products should be considered pharmaceutical grade. Per-mg or size-normalized information shown on any product page is a size-normalized value comparison only — not a dosing recommendation.