LongevityPreliminary grade

MOTS-c

A mitochondrial-derived “exercise mimetic” — promising and clinically advancing, but still emerging.

Verdict — C · Emerging / Mixed

Genuinely interesting mechanism with clinical momentum, but the human evidence and verified supply aren’t there yet. Emerging — for the experienced only.

PepScore / 100

CEmerging / Mixed

How we compute this →

Overview

MOTS-c is a mitochondrial-derived peptide that activates AMPK and acts as a metabolic “exercise mimetic,” with longevity and insulin-sensitivity interest. Clinical development is advancing, but human evidence and clean sourcing are still emerging.

PepScore Breakdown — the four axes

Evidence

35% weight

41/100

How strong is the published human science?

Human data depth10/40

Regulatory & registry status14/30

Reproducibility & consistency10/20

Mechanism characterized in humans7/10

Sourcing & COA

30% weightOur moat

59/100

Can a buyer obtain an independently-verified, high-purity version? — our proprietary layer.

Independent 3rd-party testing20/35

Verified purity %18/30

COA transparency & batch traceability12/20

Multi-vendor verified availability9/15

Safety & Risk

25% weight

72/100

What is the real-world harm potential?

Documented AEs / toxicity30/40

Contraindication breadth18/25

Regulatory warnings12/20

Therapeutic index / margin12/15

Practicality

10% weight

64/100

How easy is it to actually run a verified version?

Verified-source availability22/35

Cost / value per cycle15/25

Reconstitution & administration18/25

Storage & stability9/15

Sources & Citations

Every claim cites a primary source. Citations are machine-audited against NCBI — see methodology.

→MOTS-c — mitochondrial peptide & metabolism (PubMed)

Best-Sourced Vendor

Limitless Life Nootropics

Vendor 84 · A

Strong vendor grade (A) and the best verified supply right now for MOTS-c — batch-matched independent COA freshness 50%.

Visit Limitless Life Nootropics ↗

Ranked by Source Match = Vendor Grade × batch-COA freshness. Affiliate status is never an input to any grade, and a paying vendor never outranks a non-paying one on a tie.How this works →

PepScore56/100 · C

Last gradedJune 28, 2026

Next re-grade triggerPhase III readouts would materially lift Evidence and Registry.

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Educational only — not medical advice. PepScore is an educational research grade, not a prescription or dosing recommendation. Some vendor links are affiliate links — this never affects grades. Consult a licensed healthcare provider before using any compound.