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Side-by-side comparison

MOTS-c

Metabolic PeptideSafety 7/10

Mitochondrial research

vs

SS-31

Mitochondrial PeptideSafety 8/10

Mitochondrial research

MOTS-c
SS-31
Cheapest price
$25.55 /10mg
$139.00 /50mg
Vendors stocking
33
12
Safety rating
7/10
8/10
Mol. weight
2,174.6 g/mol
639.79 g/mol
Administration
Subcutaneous injection
Subcutaneous injection

Price Comparison — 2026

MOTS-c

VendorPrice
Alpha Peptides$25.55 /10mgBuy →
Puratek Peptides$26.96 /10mgBuy →
Hydro Research$28.00 /10mgBuy →
Liv Pure Wellness$30.00 /10mgBuy →
Ascension Peptides$30.00 /10mgBuy →
Novatherix Laboratories$31.50 /10mgBuy →
+27 more vendors →

SS-31

VendorPrice
Peptira$139.00 /50mgBuy →
Evolve Peptides$144.41 /50mgBuy →
Alpha Peptides$170.51 /50mgBuy →
Ascension Peptides$187.50 /50mgBuy →
Polar Peptides$215.99 /50mgBuy →
SomaChems$219.96 /50mgBuy →
+6 more vendors →

Vendors Carrying Both

12 vendors stock both MOTS-c and SS-31 — convenient if you want to bundle an order.

PeptiraMOTS-c: $34.75SS-31: $139.00Visit →
Evolve PeptidesMOTS-c: $51.00SS-31: $144.41Visit →
Alpha PeptidesMOTS-c: $25.55SS-31: $170.51Visit →
Ascension PeptidesMOTS-c: $30.00SS-31: $187.50Visit →
Polar PeptidesMOTS-c: $36.00SS-31: $215.99Visit →
SomaChemsMOTS-c: $43.99SS-31: $219.96Visit →
Licensed PeptidesMOTS-c: $42.50SS-31: $244.99Visit →
Midwest PeptideMOTS-c: $40.49SS-31: $269.96Visit →
LeoLab RxMOTS-c: $105.00SS-31: $295.00Visit →
Pinnacle Peptide LabsMOTS-c: $59.49SS-31: $297.46Visit →
Novatherix LaboratoriesMOTS-c: $31.50SS-31: $404.95Visit →
PeptuviaMOTS-c: $70.00SS-31: $455.00Visit →

Safety Notes

MOTS-c

FDA: Not FDA-approved

Endogenous mitochondrial peptide; human study showed safety in metabolic syndrome; promising early data

SS-31

FDA: FDA-approved (Barth Syndrome)

FDA-approved Sept 2025; 600+ patients in trials; injection site reactions main AE; well-tolerated

Explore Further

MOTS-c

Full profile →Cheapest deals →

SS-31

Full profile →Cheapest deals →
All current deals →Browse all peptides →
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