Les meilleurs compléments de longévité, classés selon les preuves

A direct precursor to NAD+, a coenzyme central to cellular energy and repair whose levels fall with age.

A naturally occurring polyamine found in wheat germ, aged cheese, mushrooms and soy, studied as an oral supplement for its role in autophagy — the cell's internal recycling process, which declines with age.

The intact coenzyme itself, delivered by IV infusion or injection rather than taken as an oral precursor — sold both as a 'research use only' vial and, more visibly, as an IV drip at wellness clinics marketed for energy, anti-aging, hangovers and addiction recovery, with a much thinner direct-administration evidence base than the marketing implies.

A sulphur-containing amino acid the body makes and also obtains from food, present in high concentrations in muscle, heart and retina.