For most of the last century, apigenin was a footnote — a yellow pigment in chamomile and parsley, studied mostly by people cataloguing the antioxidants in plants. In the last few years it has become one of the most-recommended compounds on the internet: the third ingredient in the famous sleep stack, a fixture in longevity protocols built around NAD+, and an addition to formulas aimed at cellular aging itself. But how does the evidence hold up?
IN THIS INVESTIGATION
•How a research program in Buenos Aires traced a calming reputation through three folk-sedative plants and landed on apigenin
•Why apigenin binds the same receptor site as Valium and Xanax, and what that does and doesn't mean
•What two controlled human trials actually found when they tested it for anxiety
•The 2013 Mayo Clinic discovery that made apigenin a longevity molecule, and the independent replication in Japan seven years later
•What CD38 is, why your cells use it to break down NAD+, and why that becomes a problem with age
•The single most important question nobody selling apigenin seems to ask
•How the doses that produced the animal results compare to what's in a capsule
•What happened the one time researchers tested it for sleep specifically
•Where the most serious research on this molecule is actually heading
•What the evidence supports if you're taking apigenin today, claim by claim
REFERENCES
The Mechanism — Calm
•Medina et al. Chrysin, a naturally-occurring ligand for benzodiazepine receptors, with anticonvulsant properties. Biochem Pharmacol, 1990. PMID 2173925
•Viola et al. Benzodiazepine receptor ligands from Tilia tomentosa. J Ethnopharmacol, 1994. PMID 7990504
•Viola et al. Apigenin, a component of Matricaria recutita flowers, is a central benzodiazepine receptor ligand with anxiolytic effects. Planta Med, 1995. PMID 7617761
The Human Trials
•Amsterdam et al. Chamomile extract therapy for generalized anxiety disorder. J Clin Psychopharmacol, 2009. PMID 19593179
•Mao et al. Long-term chamomile treatment for generalized anxiety disorder. Phytomedicine, 2016. PMID 27912875
•Zick et al. Standardized chamomile extract for chronic primary insomnia. BMC Complement Altern Med, 2011. PMID 21939549
The Mechanism — NAD+
•Escande et al. Apigenin is an inhibitor of the NAD+ase CD38. Diabetes, 2013. PMID 23172919
•Ogura et al. CD38 inhibition by apigenin restores the NAD+/NADH ratio and Sirt3 activity in diabetic rats. Aging, 2020. PMID 32507768
•Henderson et al. A systems approach to increase NAD+ in human participants. npj Aging, 2024. PMID 38302501
Dose, Safety, and Bioavailability
•Singh et al. Acute exposure of apigenin induces hepatotoxicity in Swiss mice. PLoS One, 2012. PMID 22359648
•Borges et al. Absorption, distribution, metabolism and excretion of apigenin in healthy adults. Free Radic Biol Med, 2022. PMID 35452808
•DeRango-Adem & Blay. Does oral apigenin have real potential for a therapeutic effect? Front Pharmacol, 2021. PMID 34084146
Where the Research Is Heading
•Wong et al. Synergistic sleep-promoting effects of magnesium and apigenin in mouse models. Food Funct, 2026. PMID 41701207
•Zhao et al. Neuroprotective and anti-amyloidogenic effects of apigenin in an Alzheimer's disease mouse model. Molecules, 2013. PMID 23966081
•Salehi et al. The therapeutic potential of apigenin. Int J Mol Sci, 2019. PMID 30875872
•Lotfi & Rassouli. Natural flavonoid apigenin against nervous system cancers. Mol Neurobiol, 2024. PMID 38206472
NOTE: This video is educational content. It is not medical advice.
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Apigenin for Sleep and NAD+: Does It Hold Up?