Inside
ARC
Six bioavailable ingredients working together to support deep sleep, lower stress and help your body actually recover overnight. Nothing to hide.
How it works
Formulated to work
while you sleep
ARC uses a time-aware formula. Click any ingredient to see exactly what it does, when it activates, and the science behind it.
Ashwagandha KSM-66
300mgLowers cortisol and calms neural activity within 30 minutes. The most clinically studied form of ashwagandha, shown to reduce serum cortisol by 27% in a randomised controlled trial.
Magnesium Glycinate
200mgThe most bioavailable form of magnesium. Activates GABA receptors to reduce neural excitability and support slow-wave sleep — the phase where physical recovery actually happens.
L-Theanine
300mgPromotes alpha brain wave activity — the calm, relaxed state that eases the transition into sleep without any sedation or grogginess.
Apigenin
200mgA natural flavonoid that binds to GABA-A receptors in the brain. Produces mild sedation and reduces anxiety without the dependency risk of pharmaceutical alternatives.
P5P (Vitamin B6)
10mgThe active form of B6. Supports your body’s own melatonin and serotonin synthesis overnight — so you wake up sharp without ever needing exogenous melatonin.
The overnight cycle
Three phases. One formula.
Wind down
L-Theanine and Ashwagandha lower cortisol and calm neural activity within 30 minutes. Your nervous system starts to shift from alert to restful.
Deep sleep
Apigenin and Magnesium Glycinate support slow-wave sleep — the phase where physical and cognitive recovery actually happens. This is where ARC does its most important work.
Morning clarity
P5P supports neurotransmitter production in the final hours of sleep so you wake up mentally sharp, not running on caffeine to get started.
Sleep architecture
Where each ingredient
activates through the night
ARC ingredients are timed to each phase of your sleep cycle, not just the moment you close your eyes.
Wind down phase
Deep sleep phase
Morning restoration
The science
Cortisol is the enemy of deep sleep.
Ashwagandha KSM-66
Clinically proven cortisol reduction
High evening cortisol keeps your nervous system active when it should be winding down. KSM-66 is the most researched form of ashwagandha for exactly this reason.
–27%
Reduction in serum cortisol — RCT
Why no melatonin?
because your body already knows how to make it.
Supplementing melatonin directly suppresses your body's own production over time. P5P supports your natural synthesis pathway instead.
0mg
Exogenous melatonin in ARC
The science
Research behind the formula
RCT
Ashwagandha KSM-66 and cortisol reduction
Randomised, double-blind, placebo-controlled study. Significant reductions in serum cortisol and stress scores over 60 days.
Clinical study
Magnesium and sleep efficiency
Clinical research shows magnesium improves objective sleep efficiency and reduces early morning awakening.
EEG study
L-Theanine and alpha wave activity
EEG studies confirm 200mg L-theanine promotes alpha brain wave generation — calm alertness without sedation.
Mechanistic
Apigenin and GABA receptor binding
Apigenin acts as a benzodiazepine receptor ligand producing anxiolytic effects via GABA-A receptor modulation.
ARC Neurosynergy Complex
60 capsules · 30-day supply · Take 2 capsules 30 minutes before sleep
Most popular
Subscribe & save
Delivered every 30 days. Skip or cancel anytime.
€27.99
/mo
Save 20% vs one-time
Common questions
How long before I notice a difference?
Most people notice improved sleep quality within 7 to 14 days of consistent use. For stress and cognitive benefits, allow 3 to 4 weeks for the adaptogens to build properly.
Can I take ARC if I'm already on medication?
Always speak to your GP before adding any supplement to your routine, particularly if you take prescription medication.
Is the subscription easy to cancel?
Yes. Pause, skip, or cancel at any time directly from your account. No emails, no hoops.
Are the capsules suitable for vegans?
Yes. ARC capsules are fully vegan and free from artificial fillers, binders, and preservatives.