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Longevity

Work on biological aging, the tests that try to measure it, and how far those tests can be trusted.

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Longevity

A weight loss drug group scored younger on body age tests in a trial

Blood stored during a 32 week trial in 84 adults was run through three tools that estimate biological age. All three scored the drug group younger, in a question put to the data only after the trial had ended.

7 September 2026 · 5 min read · 4 sources

From the reference

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Epitalon

Epitalon is a four-amino-acid peptide copied from a substance the pineal gland, a small gland deep in the brain, makes on its own.

FOXO4-DRI

FOXO4-DRI is a laboratory-built peptide designed to clear out senescent cells, aging, damaged cells that pile up over time and send inflammatory signals out into the surrounding tissue.

Livagen

Livagen is a lab made peptide built from four amino acids, developed by a research team in St Petersburg, Russia, led by Vladimir Khavinson, as a synthetic version of a natural substance drawn from liver tissue.

NAD+

NAD+ is not a peptide but a coenzyme, a small helper molecule built from two joined nucleotide units, present inside every cell in the body.

SS-31

SS-31, known in the scientific literature as elamipretide, is a small lab-made peptide built to travel inside cells and reach the mitochondria, the structures that make a cell's energy.

Vesugen

Made in a lab from just three amino acids, Vesugen comes from the Russian bioregulator research program behind several other ultra-short peptides in this reference.

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