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We only publish what our customers actually said.

4.8/5

customer reviews

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We have chosen not to publish reviews until we have real feedback from real purchases. No seeded reviews, no incentivised posts. When reviews appear here, they will be from verified customers.

CW

Cameron Webb

NutraWebb founder

Recensies

Based on 6 reviews
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I'm an amateur ultra-endurance trail runner, which means I spend a lot of hours training on top of having a full-time job in charge of the communication for an organisation in the EU Bubble and being a single dad to a 7-year-old daughter.
As you can imagine, there are a lot of stressors in my day-to-day life, and for quite a while they've affected my cortisol levels, often causing me to wake up in the middle of the night and struggle to get back to sleep.
ARC got in touch after seeing some of the inspirational content I share on Instagram (@binaural_trails) and offered me the chance to try their product.
I've been taking one dose every night for the past three weeks. With Val d'Aran by UTMB coming up in two weeks and Gauja by UTMB in August, I was really keen to do whatever I could to improve my sleep.
Since I started taking ARC, I've been sleeping right through the night and feeling much more relaxed overall. I'll keep sharing updates on how I'm feeling, but so far I'm really happy with the results.
So if you're an endurance athlete like me and you're trying to balance training with work, family, friends, and everything else life throws at you, this product could definitely be worth a try.

Ik beveel al deze ingrediënten aan mijn klanten aan. Dit is een goede formule.

Ik gebruik dit nu al een paar weken en hoewel ik niet veel slaapproblemen heb, word ik wel rustiger en uitgeruster wakker. Een aanrader!

Great product, I feel a lot calmer the last couple of weeks since taking ARC! Thank you!!

"Three weeks in and I'm sleeping better and feeling more relaxed — even through one of my busiest weeks of the year."

Pere V. — Brussles

"I recommend every one of these ingredients to my clients. This is a seriously good formula"

Des B. — Rotterdam

"It's not often that the people behind a supplement actually know what they're talking about"

Nienke G. — Kapellen

"Three weeks in and I'm waking up before my alarm. That hasn't happened in years."

James R. — Amsterdam

"I am generally a good sleep but I have had great deep sleeps since starting  with my watch also agreeing."

Geke B. - Nijmegan

"Three weeks in and I'm waking up before my alarm. That hasn't happened in years."

James R. — Amsterdam

"Three weeks in and I'm waking up before my alarm. That hasn't happened in years."

James R. — Amsterdam

"Three weeks in and I'm waking up before my alarm. That hasn't happened in years."

James R. — Amsterdam

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ARC Neurosynergy Complex

60 capsules · 30-day supply · Take 2 capsules 30 minutes before sleep

One-time purchase

No subscription. Backed by our 30-day guarantee.

€36.99

30-day money-back guarantee. It works or we refund you. Simple.

Common questions

  • How long before I notice a difference?

    It depends on the ingredient. Apigenin and L-theanine work quickly and most people notice a difference within the first few days. Magnesium and P5P build over 1–2 weeks. Ashwagandha takes 3–4 weeks to fully establish. Give ARC one complete 30-day cycle.

  • Why no melatonin?

    Melatonin tells your body what time it is — it doesn't improve how you sleep. Nightly supplementation can dampen your own production over time. ARC works differently.

  • Can I take ARC if I'm already on medication?

    Always speak to your doctor or pharmacist before taking ARC alongside prescription medication — particularly thyroid medications, immunosuppressants, or sedatives.

  • Can I take ARC during pregnancy or breastfeeding?

    We don't recommend ARC during pregnancy or breastfeeding as ashwagandha has limited safety data in pregnancy. Please speak to your doctor or pharmacist before use.

  • Are the capsules suitable for vegans?

    Yes. HPMC capsule shell, rice flour as a flow agent. That's the entire inactive ingredient list.