SLU-PP-332 vs SS-31
Which should you choose? Here's what you need to know.
The short answer
SLU-PP-332 and SS-31 are both metabolic / longevity peptides, but they work differently. An ERR (Estrogen-Related Receptor) agonist studied as an exercise mimetic. Early research suggests it may replicate some metabolic benefits of exercise. A mitochondria-targeted peptide (also known as Elamipretide) that stabilizes cardiolipin in the inner mitochondrial membrane. Studied for mitochondrial dysfunction. Compare vendor pricing and availability below.
On 20 Sep 2026 Peptide Compare tracked 20 vendors selling SLU-PP-332, cheapest in stock $7.50 per mg at Nextech Labs, and 28 selling SS-31, cheapest $2.30 per mg at Nextech Labs.
SLU-PP-332
Metabolic / LongevityAn ERR (Estrogen-Related Receptor) agonist studied as an exercise mimetic. Early research suggests it may replicate some metabolic benefits of exercise.
SS-31
Metabolic / LongevityA mitochondria-targeted peptide (also known as Elamipretide) that stabilizes cardiolipin in the inner mitochondrial membrane. Studied for mitochondrial dysfunction.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 20, 2026.
SLU-PP-332
SS-31
$44.99
Starting from
$35.00
$158.60
Avg. price per mg
$6.43
20
Vendors selling it
28
27 options
In stock now
33 options
9.0/10
Top trust score
9.1/10
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.