Apigenin is a flavonoid found in chamomile, parsley, and celery that acts as a positive allosteric modulator of GABA-A receptors — producing anxiolytic and sleep-promoting effects without the addiction risk of benzodiazepines. Andrew Huberman's popularization of 50mg apigenin for sleep drove massive consumer interest, though our research shows the clinical evidence base is thinner than the hype. The strongest data comes from chamomile extract trials (standardized to apigenin), where anxiety reduction reached 50% in one 8-week RCT.
Apigenin binds to the benzodiazepine site on GABA-A receptors, but as a partial agonist rather than the full agonist that drugs like Xanax are. This means it calms without the heavy sedation, memory impairment, or addiction potential. It also inhibits CD38 — an enzyme that degrades NAD+ — which is why it appears in longevity stacks alongside NMN or NR. The dual GABA + NAD+ mechanism makes it uniquely positioned at the intersection of sleep and aging science.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.