SS-31 (Elamipretide)
A mitochondria-targeted tetrapeptide (elamipretide). FDA-approved as Forzinity for Barth syndrome only.
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This substance is approved by regulators as a medicine and is dispensed on prescription. The dose is chosen by a doctor. The calculator below converts a dose you have already been prescribed into syringe units — it does not replace a prescription.
The FDA granted accelerated approval in 2025 to elamipretide (Forzinity) — for Barth syndrome only, in patients weighing at least 30 kg. A vial labelled "SS-31" from a peptide supplier is not that medicine. Anti-aging and athletic-performance use has no evidence base.
Every figure on this page is a dose reported in published sources. It is reference information, not a recommendation and not a protocol to follow. Any decision about injecting is one to make with a doctor.
Medical disclaimerWhat is SS-31?
SS-31 (elamipretide) is a tetrapeptide that accumulates in the inner mitochondrial membrane and binds cardiolipin. That makes the respiratory chain run more efficiently: more ATP, fewer free radicals. In September 2025 elamipretide was approved by the FDA as FORZINITY — the first approved mitochondria-targeted therapeutic.
What follows is dosing arithmetic and numeric protocols drawn from published sources and clinical trials. It describes what those sources report; it is not medical advice and not instructions for use. This part of the page is meant for people aged 18 and over.
The confirmation is kept in this browser, and on the account for signed-in users. The peptide description and its regulatory status are available without it.
What follows is dosing arithmetic and numeric protocols drawn from published sources and clinical trials. It describes what those sources report; it is not medical advice and not instructions for use. This part of the page is meant for people aged 18 and over.
The confirmation is kept in this browser, and on the account for signed-in users. The peptide description and its regulatory status are available without it.
Tissue repair needs a caloric surplus. A calorie deficit slows it down.
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