What we know — and what we don't.

The longevity supplement market has a science problem. Most brands either over-claim — citing single studies as if they proved cause-and-effect across all humans — or under-cite, leaving customers to guess what the research actually says.

We've chosen a third path. On every CELLSHE product page, we tell you exactly what each ingredient is studied for, in what doses, with what limits. We use structure/function claims — language permitted by the FDA — and mark every one with an asterisk linking to the standard FDA disclaimer. We don't say "treats." We don't say "cures." We don't say "reverses aging." Because the science doesn't support those words.

What the science does support is more interesting: a growing body of research on cellular pathways involved in healthy aging, much of it focused on NAD+ metabolism, sirtuin activity, and oxidative balance. The compounds in our products — NMN, NAD+, and Resveratrol — are among the most-studied in this field. Not because they're miracles. Because they're mechanically interesting and well-characterized.

This page collects what we've found most useful in understanding that science. It's an evolving resource. We add to it as new research is published, and we mark clearly what's emerging vs. what's well-established. If you have questions or research recommendations, email hello@cellshe.com — we read everything.