against neurodegeneration

why it works

⚠️ THE OVERLAP WITH THE MITOCHONDRIAL STACKS IS DELIBERATE AND THE DISTINCTION IS REAL. Those are about energy production; this one is about damage accumulating faster than it is repaired. PQQ sits in both because mitochondria are where the two stories meet, and CMS-121 and J-147 are sibling compounds from the same Salk Institute programme, so the family resemblance is genuine rather than coincidental.

CMS-121 is a fisetin-derived candidate targeting lipid peroxidation via fatty acid synthase. ⚠️ ITS EVIDENCE CARRIES TWO FLAGS THAT ARE LIVE ON ITS OWN ENTRY and this write-up will not be more confident than the entry is: one of its key sources is a preprint with no published journal version, and another is sponsor-authored by the company developing it. Neither of those makes the work wrong; both mean it has not been through the filter that published independent work has.

⚠️ THE NAD ITEM NEEDS SAYING PLAINLY. NAD+ itself is poorly absorbed when taken orally; it is a large charged molecule and does not cross membranes intact. What people actually take, and what this roster links, is a precursor: nicotinamide mononucleotide. Nicotinamide riboside is the other common one. The distinction matters because the marketing in this corner routinely uses NAD+ to mean any of the three.

PQQ drives mitochondrial biogenesis via PGC-1alpha, which in this stack is the replacement half of a damage-and-replacement cycle rather than an energy lever.

Resveratrol is marked optional for the same reason it is optional in the mitochondrial stack: poor bioavailability, a human literature much weaker than its reputation, and several unreplicated high-profile findings in the sirtuin field.

how they work together

The organising idea is damage rather than output, and the items line up against three different kinds of it.

CMS-121 targets lipid peroxidation through fatty acid synthase, which is a specific and unusual mechanism: rather than scavenging radicals after they form, it reduces the rate at which membrane lipids are oxidised in the first place. Lipid peroxidation is the damage mode that matters most in neurons, because neuronal membranes are unusually rich in polyunsaturated fatty acids and are therefore unusually oxidisable.

The NAD precursor addresses a different failure: NAD+ declines with age, and it is the substrate for sirtuins and for PARP-mediated DNA repair, so a shortfall limits repair capacity rather than energy capacity directly. PQQ's biogenesis contribution is where the two stories meet, since replacing damaged mitochondria is both a damage response and an energy one.

Resveratrol is a sirtuin and AMPK signal and is marked optional because it overlaps the NAD precursor's downstream target while carrying markedly weaker human evidence than anything else here.

what it feels like

Nothing, reliably, and this is the stack where saying so matters most. A protective intervention aimed at damage accumulation has no sensation attached, over any timescale a person can perceive.

The practical risk is that someone concludes it is not working and escalates. There is no dose at which lipid peroxidation becomes noticeable.

NAD precursors are the only items here people commonly report something from, and those reports are inconsistent enough that the honest position is that they may be expectation.