Spermidine is a polyamine the body makes in small amounts on its own, and it also occurs naturally in foods like wheat germ and aged cheese.
Most of the research interest is in autophagy — the process cells use to clear out and recycle worn components — though the evidence base is still developing.
It's the newest ingredient in the formula and the one the brand leans on hardest for its cellular-renewal claims, distinct from the fiber and blood-sugar ingredients.
In the BrainLive formula: Plant-Derived Spermidine is one of five named actives — see the full mechanism on how BrainLive works.