Apigenin
The active compound that makes chamomile tea calming. Apigenin works on your brain's GABA and anxiety systems — and in supplement form, it's stronger than a cup of tea.
Apigenin is a flavonoid found naturally in chamomile, parsley, and celery. It binds to benzodiazepine sites on GABA-A receptors — the same targets that anti-anxiety drugs hit — but much more gently. In supplement form (50–100 mg), it provides stronger calming than chamomile tea without drowsiness or dependence.
Good for you if: You want a gentle, non-drowsy calming supplement for bedtime, deal with racing thoughts, or want to stack something with magnesium and glycine for better sleep.
Dive deeper into the researchCommon side effects
- Almost no reported side effects
- Mild muscle relaxation at higher doses
- Theoretical concern for drug metabolism (CYP enzymes)
What does apigenin do?
When you drink chamomile tea and feel calmer, that's apigenin at work. It binds to the same receptor sites on your brain's GABA neurons that anti-anxiety drugs target — specifically, the benzodiazepine binding site on GABA-A receptors. But unlike benzodiazepines, apigenin is a partial agonist, meaning it activates the receptor gently without the heavy sedation, cognitive impairment, or addiction risk.
It also inhibits an enzyme called CD38, which breaks down NAD+ (a molecule critical for cellular energy and repair). This is why apigenin shows up in longevity protocols — preserving NAD+ levels supports mitochondrial function and healthy ageing.
What can you expect?
- Easier time falling asleep — gentle calming without heavy sedation
- Reduced anxious thoughts — quiets the mental chatter at bedtime
- Muscle relaxation — mild but noticeable physical unwinding
- No hangover — wake up clear-headed, unlike many sleep aids
How to take it
50 mg about 30 minutes before bed. This is the dose popularised by neuroscientist Andrew Huberman. Some people go up to 100 mg. Beyond that, more isn't necessarily better.
Stacks well with magnesium threonate (200 mg) and glycine (3 g) for a comprehensive sleep protocol.
How long to take it: Works the first night. Safe for daily use. No tolerance build-up.
Which form to buy?
| Form | Dose | Notes |
|---|---|---|
| Apigenin capsules | 50 mg | Standard dose; widely available |
| Chamomile extract (standardised) | 250–500 mg (1.2% apigenin) | Lower apigenin per capsule; additional compounds |
Available from Swanson, NOW Foods, and Nootropics Depot via Amazon India and iHerb. ₹800–1200 for 60 capsules. Chamomile extracts are cheaper but contain less apigenin per capsule.
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Get early accessFrequently Asked Questions
Is apigenin the same as chamomile?
Apigenin is the primary active compound in chamomile, but chamomile contains many other flavonoids and terpenes too. A cup of chamomile tea has roughly 3–5 mg of apigenin. A 50 mg supplement is 10–15x more concentrated than a cup of tea.
Can apigenin help with testosterone?
There's preliminary evidence that apigenin may mildly support testosterone by inhibiting aromatase (the enzyme that converts testosterone to estrogen). The effect is likely modest at standard doses. It's not a primary testosterone-boosting supplement.
Does apigenin preserve NAD+ levels?
Yes. Apigenin inhibits CD38, an enzyme that degrades NAD+. Since NAD+ declines with age and is critical for cellular energy and repair, this is one reason apigenin appears in longevity protocols alongside NMN or NR.
Is apigenin safe to take every night?
At 50–100 mg, yes. It's a naturally occurring flavonoid found in common foods. No tolerance, dependence, or withdrawal. The main theoretical concern is its effect on CYP drug-metabolising enzymes — if you're on medication, check with your doctor.
How it works in your body
Apigenin is a partial agonist at the benzodiazepine binding site of GABA-A receptors. This means it enhances GABA's calming effects — but more gently than pharmaceutical benzodiazepines. The partial agonism is why you get anxiolysis without heavy sedation or cognitive impairment.
Its CD38 inhibition preserves NAD+ levels, supporting mitochondrial function and sirtuin activity — both key pathways in cellular repair and healthy ageing. Apigenin also has anti-inflammatory properties, inhibiting COX-2 and modulating NF-κB signalling.
What the studies show
- Anxiety: Chamomile extract (containing apigenin) reduced anxiety scores comparably to buspirone in a 12-week trial
- Sleep: Improved sleep quality in elderly subjects taking chamomile extract
- CD38 inhibition: Preserved NAD+ levels in cell and animal studies
- Anti-inflammatory: Reduced inflammatory markers in multiple preclinical models
- Aromatase: Mild aromatase inhibition demonstrated in cell studies
Side effects & safety
- Almost none reported at 50–100 mg doses.
- Muscle relaxation — some people notice a physical relaxation effect, especially at higher doses.
- Drug metabolism — Apigenin may affect CYP1A2 and CYP3A4 enzyme activity. If you're on medications metabolised by these enzymes, consult your doctor.
- Pregnancy — Insufficient data at supplement doses. Chamomile tea in moderation is generally considered safe.
Which labs to check
- No specific labs needed for sleep use
- NAD+ levels — if using for longevity (specialised testing)
- Morning cortisol — general stress physiology context
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