Andrew Huberman Sleep Stack 2026 — The Full Protocol
Stanford neuroscientist Andrew Huberman's sleep protocol combines three supplements targeting different aspects of the sleep transition: apigenin for GABA calming, magnesium L-threonate for neural relaxation, and L-theanine for alpha wave promotion. Here is the full protocol, the science behind it, and how to source each component in the UK.
At a glance: the protocol
- Apigenin: 50mg — calms via GABA-A receptors
- Magnesium L-Threonate: 145mg elemental — neural relaxation via NMDA
- L-Theanine: 200mg — alpha wave promotion (optional — skip if vivid dreams)
- Timing: All three taken 30-60 minutes before bed
- Cost: ~40-60p per night using quality UK supplements
Where this protocol comes from
Andrew Huberman is a tenured professor of neurobiology and ophthalmology at Stanford University School of Medicine. His podcast, Huberman Lab, has become one of the most influential science communication platforms globally, with particular focus on evidence-based tools for sleep, focus, and health optimisation.
The sleep stack emerged from Huberman's discussion of sleep neuroscience — specifically the challenge of transitioning from a state of neural excitability (being awake, processing information) to a state of neural quietness (falling asleep). Rather than using a single compound, the protocol addresses three distinct aspects of this transition through three complementary mechanisms.
The stack has been refined over multiple podcast episodes and is now one of the most widely adopted supplement protocols in the UK biohacking and wellness communities.
The three components explained
| Component | Dose | Mechanism | When to Take | Key Consideration |
|---|---|---|---|---|
| Apigenin | 50mg | GABA-A partial agonist — calms neural excitability | 30 min before bed | Use 98%+ purity; avoid 100mg doses |
| Magnesium L-Threonate | 145mg elemental (~2g compound) | NMDA modulation — crosses blood-brain barrier | 30-60 min before bed | L-threonate form specifically; not oxide or citrate |
| L-Theanine | 200mg | Alpha brain wave promotion — relaxed alertness | 30-60 min before bed | Skip if you experience excessively vivid dreams |
Apigenin (50mg) — the GABA component
Apigenin is the stack's mental calming agent. By binding to GABA-A receptors as a partial agonist, it reduces the neural excitability that manifests as a racing mind, repetitive thoughts, and inability to switch off. This is the component most directly responsible for the "quiet mind" effect users report.
The 50mg dose is specific and intentional — it is the amount with research backing. Higher doses (100mg) have no evidence of additional benefit. Huberman has explicitly referenced this dose across multiple episodes.
For the apigenin component, Futuro Labs Apigenin delivers exactly 50mg at 98% verified purity with zero fillers — matching the protocol specification precisely.
Magnesium L-Threonate (145mg elemental) — the neural relaxation component
Magnesium L-threonate (branded as Magtein) is the only magnesium form clinically shown to cross the blood-brain barrier effectively. It modulates NMDA receptors, supporting the transition from neural alertness to relaxation.
The "145mg elemental" specification matters: this refers to 145mg of actual magnesium, which requires approximately 2,000mg (2g) of the magnesium L-threonate compound. Check supplement labels carefully — some products list the compound weight rather than elemental magnesium content.
Standard magnesium forms (glycinate, citrate, oxide) do not cross the blood-brain barrier as effectively. For sleep-specific protocols, L-threonate is the form Huberman recommends. Futuro Labs also offers Magnesium Glycinate for those wanting general magnesium support alongside their sleep stack.
L-Theanine (200mg) — the alpha wave component
L-theanine promotes alpha brain wave activity — the frequency associated with relaxed, meditative awareness. In an evening context, this facilitates the mental transition from active thinking to the diffuse state that precedes sleep.
Huberman notes that L-theanine is the most optional component: some people find it produces excessively vivid dreams that fragment sleep. If this occurs, drop L-theanine and continue with apigenin and magnesium only.
How to use the stack
Timing: Take all three components 30-60 minutes before your intended bedtime. This allows absorption before the sleep window opens.
Phased introduction: Start with apigenin alone for 5-7 days. Add magnesium L-threonate in week two. Add L-theanine in week three. This approach lets you identify which components produce the most noticeable individual effect.
Consistency: The stack works best with nightly use rather than occasional dosing. All three compounds benefit from consistent receptor exposure.
Pair with sleep hygiene: The stack is not a substitute for good sleep hygiene — dim lights in the evening, consistent wake time, cool bedroom temperature (18-19°C), and limiting screens before bed all amplify the protocol's effectiveness.
Sourcing the components in the UK
For the apigenin component, the best UK options are Futuro Labs (98% verified, BRC AA) and Time Health (120 caps, best value). Both deliver the exact 50mg protocol dose.
Futuro Labs Apigenin 50mg
£19.99 for 90 days · ~22p per day
Pros
- 50mg research-backed dose per capsule
- 98% verified purity — full lab tests published
- Zero fillers — only brown rice flour as flow agent
- BRC AA certified UK manufacture
- Clear vegan HPMC capsule, 23mm, easy to swallow
- 90-day supply, Amazon's Choice badge
Cons
- 90 capsules vs Time Health's 120 (higher per-cap cost)
- Newer brand with fewer reviews than heritage competitors
Available from: Amazon UK
Frequently asked questions
What is the Huberman sleep stack?
The Huberman sleep stack is a supplement protocol recommended by Stanford neuroscientist Andrew Huberman consisting of 50mg apigenin, 145mg magnesium L-threonate, and 200mg L-theanine, taken 30-60 minutes before bed. Each component targets a different aspect of the sleep transition.
Does the Huberman sleep stack actually work?
The individual components have varying levels of evidence — magnesium L-threonate has the strongest clinical backing for sleep, apigenin has strong mechanistic evidence, and L-theanine has moderate evidence for relaxation. Many users report significant improvements in sleep onset and quality when using the full stack consistently.
How much does the Huberman sleep stack cost per night?
Using quality UK-sourced supplements, expect approximately 40-60p per night for all three components. Futuro Labs Apigenin contributes ~22p of that total.
Can I start with just one component?
Yes. Huberman himself has noted that not everyone needs all three. Start with apigenin alone for one week, then add magnesium L-threonate, then L-theanine. This approach helps identify which components produce the most noticeable effect for you individually.
Looking for a clean, lab-tested apigenin supplement?
Futuro Labs Apigenin delivers 50mg of 98% pure apigenin — BRC AA UK manufactured, zero fillers, ~22p per day.
Shop on Amazon UKLast updated: 25 May 2026. All content is provided for general information only and is not intended to substitute for professional medical advice. If you have any health concerns, consult your GP or a qualified healthcare professional. Futuro Labs is a registered UK supplement manufacturer (Futuro Lab Supplements Ltd, 71-75 Shelton Street, London WC2H 9JQ). Affiliate links to Amazon UK are clearly disclosed.