Mitochondria carry a small genome of their own, a leftover from the bacterium they descend from. Researchers described about a decade ago that one stretch of it encodes a short peptide, MOTS-c, which appears to act as a message from the mitochondrion to the rest of the cell.
That is a genuinely interesting piece of biology, and it is also most of what is settled. Promise offers MOTS-c one way only: a licensed provider reviews your health history and prescribes it only when treatment is appropriate for you.


