ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2026 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ

No image available

Nootropic

FOUR KINGS

#Energy Booster
58
Safety55
Efficacy60
Transparency80
Based on Examine, Wikipedia, and 23 other sources

Overview

While this nootropic blend features several well-known cognitive-enhancing ingredients, the overall effectiveness is compromised by the underdosing of many of its core components, such as Alpha-GPC, Uridine Monophosphate, and Acetyl L-Carnitine. Some ingredients, like Ashwagandha and L-Theanine, are present in amounts that may offer some benefits for stress reduction and relaxation. However, the specific form of Bacopa is unclear, and the presence of Noopept, an ingredient with regulatory concerns, further muddies the product's profile. Consequently, the product is unlikely to deliver comprehensive nootropic benefits as effectively as higher-dosed or more targeted formulations.

The Good

Inclusion of BioPerine® for potential enhanced absorption of other ingredients.

Contains recognized adaptogens and calming agents like Ashwagandha (KSM-66®) and L-Theanine, which may support stress reduction and relaxation.

Transparent Ingredient Dosing: All ingredient amounts are clearly listed, avoiding proprietary blends.

The Bad

Suboptimal Dosing of Several Key Nootropics: Many ingredients, including Alpha-GPC, Uridine Monophosphate, ALCAR, Huperzine A, and L-Tyrosine, are dosed below clinically effective ranges.

Noopept is not permitted for use in dietary supplements by the FDA.

Potential for Neurotransmitter Overload: Combining multiple tyrosine forms and other cholinergic ingredients might lead to an imbalance in neurotransmitter levels for some individuals.

Is it for you?

Best For: Individuals seeking to enhance cognitive function, focus, memory, and mental energy.

Skip If: You are sensitive to caffeine, pregnant, nursing, or have pre-existing medical conditions without consulting a doctor.

Ingredients Analysis

N-Acetyl L-Tyrosine

250 mg

Alpha-GPC (50%)

200 mg

L-Tyrosine

200 mg

Uridine Monophosphate

200 mg

L-Theanine

150 mg

Bacopa Rosa (3% Rosavins, Salidrosides)

150 mg

Ashwagandha (KSM 66®)

150 mg

Acetyl L-Carnitine (ALCAR)

40 mg

Noopept

30 mg

BioPerine® (Black Pepper Extract, 95%)

20 mg

Vitamin B6 (Pyridoxal-5-Phosphate)

400 mcg

Huperzine A

400 mcg

How to Use

Take 2 capsules daily, preferably with a meal, or as directed by a healthcare professional.

Frequency:

Daily

Best Time:

Morning or early afternoon

When:

Preferably with food to minimize potential stomach upset, or as directed.

Who Should Use This

Best For:

Individuals seeking to enhance cognitive function, focus, memory, and mental energy.

Recommended Articles

Boost Brain Health: Key Ingredients for Aging

Boost Brain Health: Key Ingredients for Aging

Omega-3 fatty acids, Vitamin E, and curcumin are key ingredients that support cognitive function in aging, alongside the Mediterranean and MIND diets.

Cycling Supplements: What to Cycle & Why

Cycling Supplements: What to Cycle & Why

Cycling supplements is crucial for efficacy and safety, particularly with nootropics and performance enhancers.

Boost Focus with Top Ingredients & Foods

Boost Focus with Top Ingredients & Foods

Omega-3, antioxidants, flavonoids, and specific diets like the Mediterranean diet enhance cognitive function and focus.

Top Nootropics for Memory: 2024-2025 Guide

Top Nootropics for Memory: 2024-2025 Guide

Specific nootropics have shown to significantly enhance memory in healthy adults, with emerging trends and personalized approaches for 2024-2025.