Apigenin
A chamomile-derived flavonoid that supports relaxation through GABA
Quick Answer
Apigenin is a flavonoid found in chamomile that promotes relaxation by binding to GABA receptors, similar to benzodiazepines but without causing dependence or next-day grogginess. Research shows chamomile (rich in apigenin) reduces anxiety and improves sleep quality. Apigenin also inhibits CD38, potentially increasing NAD+ levels for anti-aging effects. Typical dose: 50-150mg before bed. Limited direct human studies on isolated apigenin, but promising animal data and chamomile research support its use.
Emerging
New research, promising but early
Safety: Generally safe at typical supplement doses. Limited long-term data.
What Is This?
Apigenin is a bioflavonoid, a natural plant compound, found in chamomile, parsley, celery, and various herbs. It's the main active compound responsible for chamomile's calming effects. While humans get about 1-4mg daily from diet, supplements provide much higher doses (typically 50mg).
Where it's found:
- Chamomile: About 0.8-1.2% apigenin by mass, the primary source
- Parsley, celery, thyme: Smaller amounts
- Various fruits and vegetables: Trace amounts
The NAD+ connection: Apigenin inhibits CD38, an enzyme that consumes NAD+. Since NAD+ declines with age and is important for cellular function, apigenin may have anti-aging benefits beyond sleep, though this is still being researched.
How It Works
Apigenin promotes relaxation through several mechanisms:
GABA Receptor Modulation: Apigenin binds to the benzodiazepine site on GABA-A receptors, enhancing GABA's calming effects. This quiets brain activity and produces anxiolytic (anti-anxiety) and mild sedative effects. Unlike pharmaceutical benzos, it doesn't appear to cause strong sedation or dependence.
Cortisol Reduction: In animal studies, apigenin reduced stress hormone levels, which may contribute to its calming effects and support sleep.
Serotonin Effects: Apigenin may increase serotonin, a neurotransmitter that promotes sleep and mood regulation.
Clinical Evidence:
Chamomile for Anxiety (Multiple Studies):
- A systematic review of 10 clinical trials found 9 concluded chamomile effectively reduces anxiety
- 1500mg chamomile extract reduced GAD symptoms; effects maintained over 26 weeks
- Chamomile was safe with only mild adverse events reported
Animal Studies:
- Apigenin induced sedative effects and reduced locomotor activity in mice and rats
- Positive impacts on both sleep and longevity in animal models
How to Start
Choose a quality apigenin supplement
Look for pure apigenin supplements, typically in 50mg capsules. Some products combine apigenin with other sleep-supporting ingredients like magnesium or theanine.
Tips:
- •50mg is the most common capsule size
- •Pure apigenin vs. chamomile extract, both work, but dosing differs
- •Third-party tested products are preferred for purity
Start with 50mg before bed
Take 50mg approximately 30-60 minutes before your intended sleep time. This allows time for absorption and the onset of relaxation effects.
Tips:
- •Take on an empty or light stomach for faster absorption
- •30-60 minutes before bed is typical
- •Some people notice effects the first night; others need several days
Adjust dose if needed
If 50mg isn't sufficient, you may increase to 100-150mg. Most people find their sweet spot in the 50-150mg range. Higher doses increase the risk of excessive drowsiness.
Tips:
- •Don't rush to increase, give each dose several nights
- •150mg is a common upper limit for nightly use
- •Higher doses may cause next-day grogginess
Combine with sleep hygiene
Apigenin works best as part of a comprehensive sleep routine, consistent schedule, dark room, no screens before bed, etc. It's a support, not a magic pill.
Tips:
- •Pairs well with magnesium glycinate
- •Some combine with L-theanine for additional calming
- •Won't overcome poor sleep habits
What to Expect
Subtle relaxation
Many people notice a gentle sense of calm within 30-60 minutes. It's subtle, don't expect to feel sedated or "knocked out." Some notice nothing initially.
Easier unwinding
With consistent use, many report finding it easier to mentally "wind down" before bed. Racing thoughts may quiet more easily. Sleep onset may improve.
Sleep quality improvements
Subjective sleep quality often improves. You may wake feeling more refreshed. The anxiolytic effects typically become more apparent with continued use.
Maintained effects
Unlike some sleep aids, apigenin doesn't appear to cause tolerance. Continued use maintains benefits. No withdrawal effects reported if you stop.
Dosing Information
Recommended Dose
50-100mg before bed
Range
50-150mg daily
- •Most supplements come in 50mg capsules
- •Start at 50mg; increase if needed
- •150mg is a reasonable upper limit for nightly use
- •Higher doses increase drowsiness risk without proven additional benefit
May interact with blood thinners and sedatives. Consult a healthcare provider if on medications.
Practical Details
Timing
Take 30-60 minutes before bed. This allows absorption time and lets relaxation effects onset before you want to sleep.
Duration
Can be used nightly as needed. No tolerance or dependence reported. Can also be used situationally when you need extra relaxation support.
Cost
$15-30/month
Apigenin supplements are relatively affordable. A bottle of 50mg capsules typically lasts 1-2 months.
Risks & Considerations
Potential Risks
- •Limited long-term human data for isolated apigenin supplementation
- •High doses may cause excessive drowsiness
- •Potential drug interactions (blood thinners, sedatives, diabetes meds)
- •Allergic reactions possible if sensitive to chamomile
Possible Side Effects
- •Generally well-tolerated
- •High doses: excessive drowsiness, grogginess
- •Rare: upset stomach
- •Rare: allergic reactions (especially if chamomile-allergic)
Who Should Avoid This
- •Chamomile or ragweed allergy
- •Concurrent use of blood thinners (may enhance effects)
- •Concurrent use of sedatives or sleep medications (additive effects)
- •Pregnancy/breastfeeding (insufficient safety data)
Key Research
Apigenin: Sleep and Aging
Frontiers in Nutrition, 2024
Review article examining apigenin's effects on sleep and aging. Found dietary apigenin intake positively correlates with sleep quality in large cohorts. Apigenin acts via GABA receptors and inhibits CD38 (increasing NAD+).
View StudyChamomile for anxiety: Systematic review
Clinical Nutrition Research, 2024
Systematic review of 10 clinical trials found 9 studies concluded chamomile (rich in apigenin) effectively reduces anxiety. Meta-analysis showed significant improvement in generalized anxiety disorder.
View StudyLong-term chamomile (Matricaria chamomilla L.) treatment for generalized anxiety disorder: A randomized clinical trial
Phytomedicine, 2016
26-week RCT found chamomile maintained significantly lower GAD symptoms than placebo, with significant reductions in body weight and blood pressure. Safe with low adverse event rates.
View StudyFrequently Asked Questions
How does apigenin compare to melatonin for sleep?
They work differently. Melatonin signals to your body that it's time to sleep (circadian regulation). Apigenin promotes relaxation through GABA receptors (calming the mind). Melatonin is better for circadian issues (jet lag, shift work); apigenin is better for racing thoughts or anxiety keeping you awake. Many people use both.
Will apigenin make me feel groggy the next day?
Unlike stronger sleep aids, apigenin typically doesn't cause next-day grogginess at standard doses (50-100mg). However, higher doses (200mg+) may cause some residual drowsiness. Start low to find your optimal dose.
Can I just drink chamomile tea instead?
Chamomile tea provides apigenin but in much smaller amounts, roughly 3-10mg per cup versus 50mg in a typical supplement. You'd need many cups to match supplement doses. Tea is a gentler option; supplements provide concentrated, consistent doses.
Is apigenin the same as Andrew Huberman's sleep stack?
Apigenin is one component of the sleep protocol popularized by neuroscientist Andrew Huberman, typically combined with magnesium threonate and L-theanine. Each component has different mechanisms. Apigenin alone can be effective, but the combination may work synergistically.
Does apigenin really increase NAD+ levels?
In laboratory and animal studies, apigenin inhibits CD38, an enzyme that consumes NAD+. This leads to increased NAD+ levels. Whether this translates to meaningful anti-aging benefits in humans at typical supplement doses is still being researched.
Is apigenin safe long-term?
Chamomile has been used safely for centuries. However, high-dose isolated apigenin supplementation is relatively new, and long-term studies are lacking. At typical doses (50-150mg), no significant safety concerns have emerged, but it's wise to exercise caution with indefinite high-dose use.
Sources
Related Interventions
Disclaimer: This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider before starting any new health practice or supplement. Evidence levels and recommendations can change, this content was last updated December 2025.