NeuraLegend Core bottle

NeuraLegend™ Core

$99.00
Sale price  $99.00 Regular price 
Skip to product information
NeuraLegend Core bottle
  • Brain health support
  • Cognitive resilience

NeuraLegend™ Core

  • Brain health support
  • Cognitive resilience

NeuraLegend™ Core

Plan

Quantity

Renews at $79/month until you cancel. Cancel anytime online at tnutra.com/account.

Free standard US shipping · Plus tax · Subscription terms

Provides the daily base for long-term cognitive performance.

30-day money-back guarantee. If it doesn’t work for you, we refund your first order — no return needed. Details

  • Every lot tested twice, ingredients and finished capsules
  • NSF/ANSI 455-2 certified facility, Wisconsin
  • ISO/IEC 17025 accredited labs
  • Six branded ingredients at full research doses
See the test reports
Details, ingredients and how to use

Pillar 1: The Foundation

Provides the raw materials to support neural foundation.

Core is the structural foundation of the system. Supporting the body's natural neurological signaling pathways, maintenance of healthy neural structure, focus, memory, and long-term cognitive resilience. 

The Ingredient

  • ErinaPrime™ Lion's Mane Mycelium: 100% pure Lion's Mane mycelium standardized to 1% Erinacine A (10mg per gram) — with no grain fillers and no starch dilution. Erinacine A is a rare, research-backed bioactive compound produced in the mycelium of Lion's Mane.
  • Precision Fermentation: Produced by Grape King Bio through a state-of-the-art submerged liquid fermentation process and freeze-dried into a pure mycelium powder, ensuring every serving delivers a clean, targeted profile of Erinacine A.

How to Use

Take one serving daily, with or without food. Designed as the foundational base of the stack — pair with A.M. Formula for daytime ignition and P.M. Formula for overnight recovery.


*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with a qualified healthcare professional before starting any new supplement, especially if you are pregnant, nursing, taking medication, or have a medical condition.

What's inside

  • ErinaPrime™ Lion's Mane mycelium500 mg1% erinacine A · Grape King Bio, TaiwanStudied in healthy adults over 55 at 3.44 mg erinacine A/day for 8 weeks (Cernelič Bizjak 2024)

No proprietary blends. Every amount, brand and source is listed. Ingredients & sourcing

Clinical research

  • Standardization1% erinacine A — twice the standard used in the clinical research
  • Serving5 mg per capsule · 10 mg erinacine A at two capsules
  • MaterialLiquid culture, freeze-dried. Not grain-grown biomass.
  • ManufacturerGrape King Bio, Taiwan — the manufacturer whose mycelium the clinical trials used

Erinacine A-enriched Hericium erinaceus mycelium has been studied in double-blind, placebo-controlled clinical trials at 5.25 mg and 10 mg erinacine A per day. ErinaPrime is standardized to 1%, twice the concentration those trials used. Read the research

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Grain Free

Meat & Fish Free

GMO FREE

Who is NeuraLegend™ For?

NeuraLegend is engineered for the "Cognitive Maximalist"—individuals who recognize that peak cognitive performance requires a 24-hour approach to brain health.

NeuraLegend is for you if:

Energy icon

You require high-output cognitive function

You are a professional, student, or high-performer who needs consistent focus during the day and restorative recovery at night.

Layered formula icon

You are looking for a complete system

You understand that brain health is a circadian event—requiring support for ignition, structural building, and metabolic clearance.

Science icon

You value rigorously sourced ingredients

You know input quality determines output quality. That's why you demand actives sourced from elite biotech hubs. Never the cheapest.

Lab testing icon

You demand transparency

You are tired of "proprietary blends" and want to know exactly what is in your supplement, who made it, and where it came from.

Quality icon

You want proof, not promises

Third-party testing reports for AM, Core and PM are linked on this page. Read them before you order.

You view cognition as longevity

You see mental sharpness as a lifelong asset. Something to protect and compound across decades. Thinking clearly at 35 and clearly at 65.

NeuraLegend™ AM

Ignite

Daily spark for focused cognition. Caffeine-free.

  • FOCUS
  • ATTENTION
  • SUSTAINED ENERGY

NeuraLegend™ AM

NeuraLegend™ AM

$99.00
Sale price  $99.00 Regular price 
NeuraLegend™ Core

Build

Provides the daily base for long-term cognitive performance.

  • Brain health support
  • Cognitive resilience

NeuraLegend™ Core

NeuraLegend™ Core

$99.00
Sale price  $99.00 Regular price 
NeuraLegend™ PM

Restore

Supports Natural Recovery & Refreshed Morning.

  • Restful Sleep & Recovery
  • Melatonin-free

NeuraLegend™ PM

NeuraLegend™ PM

$99.00
Sale price  $99.00 Regular price 

BEST VALUE

Try the full NeuraLegend™ System - $129 first month, then $189

AM Focus + Erinaprime + PM Restore. Full 24-hour cognitive cycle.

Customer Reviews

Frequently Asked Questions

What is ErinaPrime?

ErinaPrime is 100% Lion's Mane mycelium, standardized to 1% erinacine A. It is not a fruiting-body powder, and it is grain-free. Core is for healthy neural structure and long-term cognitive resilience.

What does 1% erinacine A mean?

10 mg of erinacine A per gram of mycelium. A 500 mg serving delivers 5 mg of erinacine A.

How do I take it?

One serving, with or without food.