NMN (Nicotinamide Mononucleotide) vs SS-31 (Elamipretide)

A side-by-side comparison from PeptideSciences101, the open peptide reference.

Overview

NMN (Nicotinamide Mononucleotide) is primarily a anti-aging & longevity peptide, while SS-31 (Elamipretide) is used for anti-aging & longevity.

This page compares NMN (Nicotinamide Mononucleotide) and SS-31 (Elamipretide) across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.

Side-by-side comparison

NMN (Nicotinamide Mononucleotide)SS-31 (Elamipretide)
CategoryAnti-aging & LongevityAnti-aging & Longevity
Regulatory status (US)Research use onlyResearch use only
Typical dosage250-500 mgClinical trials ongoing
FrequencyDaily oral or subQresearch
Reported benefitsNAD+ repletion, mitochondrial biogenesis, sirtuin activation, DNA repair.Enhanced mitochondrial function, reduced oxidative stress, potential heart failure treatment
Reported side effectsGenerally well-tolerated; rare GI discomfort.Clinical trials. Side effects under study

Key differences

Primary use. NMN (Nicotinamide Mononucleotide) is categorised under Anti-aging & Longevity, while SS-31 (Elamipretide) falls under Anti-aging & Longevity. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.

Regulatory status. NMN (Nicotinamide Mononucleotide): not FDA-approved; treated as a research compound. SS-31 (Elamipretide): not FDA-approved; treated as a research compound.

Dosing. NMN (Nicotinamide Mononucleotide) is typically dosed at 250-500 mg (Daily oral or subQ). SS-31 (Elamipretide) is typically dosed at Clinical trials ongoing (research).

Can you stack them?

Some protocols combine peptides, but stacking NMN (Nicotinamide Mononucleotide) and SS-31 (Elamipretide) has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.

Frequently asked questions

What is the difference between NMN (Nicotinamide Mononucleotide) and SS-31 (Elamipretide)?
NMN (Nicotinamide Mononucleotide) is primarily a anti-aging & longevity peptide, while SS-31 (Elamipretide) is used for anti-aging & longevity. NMN (Nicotinamide Mononucleotide) is not FDA-approved; generally classified as a research compound, whereas SS-31 (Elamipretide) is not FDA-approved; generally classified as a research compound.
What is NMN (Nicotinamide Mononucleotide) used for?
NAD+ direct precursor nucleotide; key longevity compound.
What is SS-31 (Elamipretide) used for?
Mitochondrial optimization.
Can you take NMN (Nicotinamide Mononucleotide) and SS-31 (Elamipretide) together?
Some users combine peptides within a single protocol, but stacking NMN (Nicotinamide Mononucleotide) and SS-31 (Elamipretide) has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
Is NMN (Nicotinamide Mononucleotide) or SS-31 (Elamipretide) FDA-approved?
NMN (Nicotinamide Mononucleotide) is not FDA-approved; generally classified as a research compound. SS-31 (Elamipretide) is not FDA-approved; generally classified as a research compound.

Read the full articles

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