Boost cellular energy and slow the aging process from within.




Trusted by 50,000+ health-focused customers
Brain & Focus – Cognitive Performance Stack
SAVE
Sharpen memory, focus, and mental endurance with three nootropic-grade ingredients designed for sustained cognitive output.
Sharpens focus and mental clarity
Supports memory and neuroplasticity
Powers sustained mental endurance
Reduces brain fog and decision fatigue
What You Get

Mushroom Boost 10x
Lion's mane and functional mushrooms for memory

B12 Complex
Neurotransmitter synthesis support

Omega 3
Structural DHA for brain function
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect cleaner energy and sharper focus during deep work. By week two, memory and recall improve. By day 30, most users report sustained mental endurance, less afternoon fog, and clearer thinking under pressure — without caffeine.
WHAT'S INCLUDED
Mushroom Boost 10x, B12 Complex, and Omega 3 — three nootropic-grade ingredients for memory, neurotransmitters, and brain structure.
HOW DOES IT WORK
Lion's mane and functional mushrooms support nerve growth factor and neuroplasticity. B12 fuels neurotransmitter synthesis for clear thinking. DHA from omega-3s is the structural fat your brain is built from. Together, they cover memory, signaling, and structure.
INGREDIENTS
10x concentrated functional mushroom blend (lion's mane, cordyceps, reishi), methylated B-vitamin complex with B12, and triglyceride-form Omega 3 with concentrated DHA.
The Cognition Stack that delivered
Thousands of professionals, students, and biohackers use Brain & Focus to think clearer, focus longer, and replace the caffeine crash with sustained mental energy.
"Replaced my afternoon coffee"
"I used to crash hard at 2pm. This stack keeps me sharp through the whole afternoon, no jitters."
— Renata C.
Verified Customer
"Memory noticeably better"
"I'm in grad school and my recall has gotten better. Names, facts, study material — it's all sharper."
— Tariq H.
Verified Customer
"Deep work for hours"
"I can sit and focus for three hours straight without losing it. That used to be impossible without coffee."
— Brandon F.
Verified Customer
"Brain fog is gone"
"I had constant fog that I blamed on age. Turns out my brain just needed the right inputs. Huge difference."
— Yuki H.
Verified Customer
One Simple Kit, Three Powerful Phases
30 days to sharpen cognition and rebuild mental endurance.
Days 1–10
PHASE 1:
Clear the Fog
B12 fuels neurotransmitter synthesis. Mental clarity returns within days.
Days 11–20
Build Brain Structure
DHA and lion's mane support neural structure and plasticity. Focus deepens.
Days 21–30
PHASE 3:
Lock In the Edge
Memory, focus, and endurance compound. Cognitive performance stabilizes.
The Real Problem Isn't Willpower. It's Brain Inputs.
You can't out-discipline an undernourished brain. Cognitive performance depends on the raw materials your brain runs on.
Brain Fog
B-vitamin gaps and depleted neurotransmitters cause the foggy, scattered thinking that ruins productivity.
Caffeine Dependency
Coffee gives a spike, then a crash. It's not real cognitive support — just a borrow against tomorrow.
Memory Slipping
Without nerve growth factor and structural support, memory and recall slowly decline.
Decision Fatigue
Mental endurance collapses by mid-afternoon when your brain is running on empty.
A Complete System for Cognitive Performance
Three products that cover the three layers of brain function: structure, signaling, and adaptation.
Memory and Neuroplasticity
Lion's mane supports nerve growth factor — the molecular basis of memory and learning.
Sharper Neurotransmitters
B12 and B-complex fuel the neurotransmitter synthesis that drives clear, focused thinking.
Structural Brain Support
DHA is the most abundant fat in your brain. Adequate DHA equals better signaling and resilience.
Sustained Endurance
Real cognitive support that doesn't crash. Deep work for hours, not bursts.
What Makes Makes Brain & Focus Different
A serious nootropic stack without the gimmicks of typical 'focus' products.
Formulated by Nathaly Marcus — Trusted by Millions
Nathaly Marcus is a functional medicine practitioner and supplement formulator trusted by millions for her evidence-based, no-BS approach to health.
She created the Sugar Reset Program after seeing countless people struggle with cravings and metabolic dysfunction, not from lack of willpower, but from broken biology.
Every FortCore formula is built to her exact standards: clinical doses, third-party testing, and ingredients she uses herself.
When you choose this program, you're getting a system designed by someone who refuses to compromise on quality or results.
✨ Sharper, longer, deeper. Three products to power real cognitive performance without caffeine.




Trusted by 50,000+ health-focused customers
Brain & Focus – Cognitive Performance Stack
SAVE
Sharpen memory, focus, and mental endurance with three nootropic-grade ingredients designed for sustained cognitive output.
Sharpens focus and mental clarity
Supports memory and neuroplasticity
Powers sustained mental endurance
Reduces brain fog and decision fatigue
What You Get

Mushroom Boost 10x
Lion's mane and functional mushrooms for memory

B12 Complex
Neurotransmitter synthesis support

Omega 3
Structural DHA for brain function
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect cleaner energy and sharper focus during deep work. By week two, memory and recall improve. By day 30, most users report sustained mental endurance, less afternoon fog, and clearer thinking under pressure — without caffeine.
WHAT'S INCLUDED
Mushroom Boost 10x, B12 Complex, and Omega 3 — three nootropic-grade ingredients for memory, neurotransmitters, and brain structure.
HOW DOES IT WORK
Lion's mane and functional mushrooms support nerve growth factor and neuroplasticity. B12 fuels neurotransmitter synthesis for clear thinking. DHA from omega-3s is the structural fat your brain is built from. Together, they cover memory, signaling, and structure.
INGREDIENTS
10x concentrated functional mushroom blend (lion's mane, cordyceps, reishi), methylated B-vitamin complex with B12, and triglyceride-form Omega 3 with concentrated DHA.
