Finally, something that actually works
"My neurologist told me 400mg of B2 — but every brand split the dose across 4–6 pills. NeuroShield gives me the full clinical dose in just 2 capsules. After 6 weeks, the difference is undeniable."
Recommended Dose · Neurologist Backed
Stop Migraines Before They Start.
The 400mg clinical dose of Riboflavin (B2) that neurologists recommend for migraine frequency reduction in just 2 capsules a day. No prescription. No side effects. Just science.
- 400mg clinical dose — the exact amount studied in peer-reviewed research
- 4-month supply — 240 vegan capsules in every bottle
- Just $0.58/day — less than a cup of coffee for real relief
- 30-day money-back guarantee — feel the difference or pay nothing
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4.9/5 (1,247)
4.9/5
· 1,247 reviews
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Americans trust ZARKS
Clinical doses
· Research-backed
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shipping · 30-day guarantee
247 customers
ordered NeuroShield B2 this week
★ Our Products
Two Ways to Take Back Control
Daily prevention with NeuroShield B2. Instant relief with CryoCalm. Both research-backed. Both drug-free. Both designed to give you your life back.
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NeuroShield™
Daily PreventionThe 400mg clinical Riboflavin dose neurologists recommend, engineered for daily migraine support and neurological resilience.
- 400mg clinical dose · 2 capsules daily
- 240 capsules · 4-month supply
- Vegan · Non-GMO · GMP certified
$69.99
$89.99
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$0.58/day · 4-month supply
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CryoCalm™
Instant Relief360° cold compression therapy for on-demand migraine relief. Drug-free, reusable, and ready to use the moment you feel one coming.
- Relief in under 10 minutes
- 360° coverage · stays cold for hours
- Reusable 500+ times
$59.99
$79.99
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$0.14/use · 500+ uses
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★ Complete System
The Smart Way to Fight Migraines
Daily prevention plus instant relief — the complete defense system that 73% of our customers choose. Save $40 vs buying separately.
BEST VALUE — SAVE $40
The ZARKS Wellness Bundle
NeuroShield B2 (240 caps, 4 month supply) + CryoCalm 360° cold therapy cap, daily prevention meets on-demand relief.
- NeuroShield B2 - full 4 month supply
- CryoCalm - 360° cold therapy cap
- Save $40 vs buying separately
- Free US shipping
$99.00
$139.98
Save $40
That's just $0.82/day for total migraine defense
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★ How It Works
Relief in 3 Simple Steps
No prescriptions. No appointments. No more wondering when the next migraine will strike.
1
Order Today
Choose your product or the complete bundle. Free shipping.
2
Take 2 Capsules Daily
One in the morning, one at night. That's it. No complicated routines, no doctor visits.
3
Feel The Difference
Most customers notice meaningful change within 4–6 weeks.
★ Common Questions
Everything You Need to Know
The questions our customers ask most — answered honestly.
How long until I notice a difference?
Most customers report meaningful change in 4 to 6 weeks of consistent daily use. Riboflavin (B2) works by supporting mitochondrial energy production in brain cells, it's a building process, not a switch. That's why we include a 30-day money-back guarantee: try it risk-free, and if you're not feeling the difference, we'll refund every cent.
Why 400mg? Isn't that a lot?
400mg is the clinical dose studied in peer-reviewed migraine research and it's the amount neurologists most commonly recommend. Riboflavin is water-soluble: your body absorbs what it needs and excretes the rest. Most generic B-complex vitamins contain just 10 – 25mg nowhere near the research backed dose.
Can I take this with my current medication?
Riboflavin is generally considered safe alongside most medications and has no known major interactions. That said, we always recommend talking to your doctor before adding any new supplement especially if you're currently taking prescription migraine medication.
What if it doesn't work for me?
Email us within 30 days, send back what's left, we'll refund 100% of your purchase. No questions, no forms, no "are you sure?" calls. We can stand behind a guarantee that strong because the science backs the product.
How does CryoCalm compare to a regular ice pack?
Three differences. One: 360° coverage, it wraps around your entire head, including the temples and base of skull where most migraine pain originates. Two: Stays cold for hours, not minutes. Three: Reusable 500+ times. One CryoCalm replaces every disposable cold pack you'd buy in a year.
When will my order arrive?
We take 3-5 business days for processing and 5-7 business days for shipping the product!
Still have questions? Our team is here to help.
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