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Build Strength. Build Confidence. Build the Kingdom.

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Reign Energy, Rainbow Sherbet
Reign Energy, Rainbow Sherbet

Reign Energy, Rainbow Sherbet

$4.99

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    • Product Information

      Reign Energy delivers intense focus and endurance with a potent blend of caffeine, BCAAs, and performance-enhancing ingredients. Rainbow Sherbet flavor combines tart citrus notes with creamy undertones for a refreshing taste that powers through your workout. Zero sugar, zero calories—pure energy without compromise. Engineered for athletes and fitness enthusiasts who demand maximum performance in every sip.

    Product Information

    Reign Energy delivers intense focus and endurance with a potent blend of caffeine, BCAAs, and performance-enhancing ingredients. Rainbow Sherbet flavor combines tart citrus notes with creamy undertones for a refreshing taste that powers through your workout. Zero sugar, zero calories—pure energy without compromise. Engineered for athletes and fitness enthusiasts who demand maximum performance in every sip.

    Join the Club
    Save 10% on all purchases everyday

    Blog posts

    At the Kingdom, we prioritize knowledge. We believe informed customers make better choices. That's why we share detailed product specs, ingredient breakdowns, and science-backed guidance with every purchase. Your fitness journey deserves clarity and expertise.

    View all posts
    Most People Are Doing Fat Loss Wrong. What Actually Works (Backed by Science)

    Most People Are Doing Fat Loss Wrong. What Actually Works (Backed by Science)

    Struggling to lose fat? This evidence-based guide explains the most common fat loss mistakes and outlines proven strategies—including nutrition, training, hydration, and supplementation—to help you get results.

    Read more
    Brett Rehman’s Pro Picks. My go to supplements for maximum results

    Brett Rehman’s Pro Picks. My go to supplements for maximum results

    IFBB Pro Brett Rehman, owner and founder of Kingdom Supplements, shares his personal supplement recommendations built over 15 years of training. Learn the foundation supplements he trusts most—creatine, protein, pre-workout,...

    Read more
    Creatine - "To load, or not to load, that is the question"
    • creatine

    Creatine - "To load, or not to load, that is the question"

    Creatine is one of the most researched and trusted supplements for strength, performance, and muscle growth. But should you load creatine or take it daily? In this science-backed guide, we...

    Read more
    Protein powders explained, What the heck am I really buying?
    • Protein

    Protein powders explained, What the heck am I really buying?

    Protein is one of the most important nutrients for building muscle, supporting metabolism, and maintaining overall health. But how much protein do you actually need each day? In this complete...

    Read more
    Menopause Supplements: How to Support Hormones, Preserve Muscle, and Protect Bone Health

    Menopause Supplements: How to Support Hormones, Preserve Muscle, and Protect Bone Health

    Menopause brings natural hormonal changes that can affect muscle mass, metabolism, bone density, and energy levels. This guide explains the supplements, nutrition strategies, and lifestyle habits that can help women...

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    Best Supplements for Muscle Growth (Science Explained)
    • creatine
    • Protein

    Best Supplements for Muscle Growth (Science Explained)

    What supplements actually help build muscle? In this science-based guide, we break down the most effective supplements for muscle growth including creatine, protein, citrulline, and beta-alanine, and explain how they...

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    Pre-Workout Explained: Ingredients That Actually Work
    • Pre-Workout

    Pre-Workout Explained: Ingredients That Actually Work

    Pre-workout supplements are designed to boost energy, focus, endurance, and performance during training—but not all formulas are created equal. In this science-based guide, we break down the pre-workout ingredients that...

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    How to Lose Fat With Cardio While Preserving Muscle

    How to Lose Fat With Cardio While Preserving Muscle

    Cardio can be a powerful tool for fat loss, but doing it incorrectly can lead to muscle loss and a slower metabolism. In this guide, we break down the best...

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    Creatine vs Pre-Workout: Which Supplement Is Better for Performance?

    Creatine vs Pre-Workout: Which Supplement Is Better for Performance?

    Should you take creatine or pre-workout for better performance? While both supplements are popular among athletes, they work in very different ways. This science-based guide explains the benefits of creatine...

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