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MuscleSport Rhino King’s Ransom – Legacy Edition Premium Pre-Workout

40/20 Servings

from £41.60

Earn up to 42 Points.

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Rhino King’s Ransom Legacy Edition by MuscleSport is a top-tier, full-disclosure pre-workout formulated for advanced users looking to dominate their training sessions. With 22 grams of active ingredients per full scoop, this premium pre-workout delivers a powerful combination of pump, energy, focus, and performance, designed for those who demand royalty-level intensity.

Featuring five trademarked ingredients and separate dosages for beginners (½ scoop) and advanced users (1 scoop), Rhino Legacy offers both flexibility and maximum firepower depending on your needs.

Who Is It For?

Rhino King’s Ransom is built for:

  • Advanced users who want maximum dosed pre-workout performance

  • Athletes seeking a clean formula with zero proprietary blends

  • Bodybuilders and lifters who value a balanced combination of pump, energy, and nootropic focus

  • Users who appreciate stacking power and complete transparency

Our Impression After Testing

This is one of the most complete and balanced pre-workouts we’ve tried. Unlike many high-stim formulas that rely solely on caffeine and mood boosters, Rhino King’s Ransom hits every angle:

  • Massive pump after the first few sets

  • Controlled but aggressive energy – no crash thanks to the dual caffeine matrix

  • Impressive nootropic clarity that keeps focus sharp throughout the workout
    The 22g scoop is genuinely heavy, so we appreciated the option to use a half-scoop when training later in the day. With the gold glitter in the powder, it also has a regal appearance—though thankfully, it doesn’t taste artificial or overwhelming.

Ingredient Breakdown


Nitric Oxide & Recycling Matrix (for pumps & vasodilation)



  • L-Citrulline – 6,000 mgMaximises nitric oxide production for intense blood flow and muscle fullness.

  • Agmatine Sulfate (Agmass™) – 1,500 mgEnhances nitric oxide signalling and complements L-Citrulline’s effects.

  • Grape Seed Extract (95%) + Pine Bark Extract (95%) – 250 mg eachAntioxidant-rich compounds that support blood vessel dilation and vascularity.

  • Vanadyl Sulfate – 10 mgInsulin-mimetic mineral supporting nutrient delivery and cellular pump.


Cellular Energy Complex (for endurance & cellular output)



  • Beta Alanine – 3,500 mgDelays muscular fatigue and increases training volume.

  • BetaPower™ (Natural Betaine) – 2,500 mgSupports muscle hydration, power output, and strength.

  • Taurine – 500 mgAids hydration, cellular function, and endurance.

  • Himalayan Pink Salt – 500 mgProvides electrolytes for hydration and muscle contractions.

  • Rhodioprime 6X™ (6% salidrosides) – 100 mgAdaptogenic support for managing physical stress and fatigue.


Mind-Muscle Connection & Focus Matrix (for nootropic and cognitive drive)



  • L-Tyrosine – 2,000 mgSupports dopamine and adrenaline levels under stress and during prolonged training.

  • Alpha GPC – 600 mgCholine is a source that enhances focus, cognition, and motor coordination.

  • Caffeine Anhydrous – 300 mg + Infinergy™ (Dicaffeine Malate) – 75 mgA strong dual-source caffeine system for fast and sustained energy release.

  • Cacao Rush™ Theobromine – 200 mgSmooth stimulation and mood-enhancing effect.

  • L-Theanine – 100 mgBalances stimulation, reduces jitters, and promotes clean focus.

  • Celastrus Paniculatus Extract – 50 mg + Huperzia Serrata Extract – 20 mgRare nootropic ingredients supporting memory, focus, and mental clarity.


Vitamin & Electrolyte Support



  • Niacin (B3) – 30 mgEnergy metabolism and nutrient conversion.

  • Vitamin B12 – 2,000 mcgEnergy support and nervous system balance.

  • Vitamin C – 250 mgAntioxidant protection and general immune support.

  • Sodium & Potassium (from Himalayan Salt)Essential electrolytes for hydration and endurance.


Dosage – Timing – Follow-Up


Suggested Use:


  • Beginner: Mix ½ scoop (11g) with 200–250ml of water, 20–30 minutes before training.


  • Advanced: Mix one full scoop (22g) with 300–400ml of water before training.Avoid taking close to bedtime due to the caffeine content.


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Rhino King’s Ransom Legacy Edition by MuscleSport is a premium, full-disclosure pre-workout designed for advanced users. Each full scoop provides 22g of active ingredients across five trademarked compounds, with flexible dosing for beginners (half scoop) and advanced users (full scoop), across 40 or 20 servings.

Rhino King’s Ransom is formulated to support maximum pump, energy, focus, endurance, and nootropic performance. It features separate matrices for nitric oxide support, cellular energy, stimulant energy, and cognitive focus.

The Nitric Oxide and Recycling Matrix includes L-Citrulline (6,000mg), Agmatine Sulfate as Agmass™ (1,500mg), Grape Seed Extract 95% (250mg), Pine Bark Extract 95% (250mg), and Vanadyl Sulfate (10mg) to support blood flow, vasodilation, and muscle fullness.

The Cellular Energy Complex includes Beta-Alanine (3,500mg) and BetaPower™ Natural Betaine (2,500mg) to support muscular endurance, power output, and training volume during demanding sessions.

BetaPower™ is a patented natural betaine ingredient dosed at 2,500mg per full serving. It is included in Rhino King’s Ransom to support muscle hydration, power output, and strength performance.

Agmass™ is a trademarked form of agmatine sulfate, dosed at 1,500mg in the pump matrix. It supports nitric oxide signalling pathways and complements the effects of L-Citrulline for enhanced vascularity and fullness.

Yes. Rhino King’s Ransom includes a stimulant energy matrix with caffeine and other energy-driving compounds. The formula is designed for advanced users who are familiar with high-stimulant pre-workouts, with flexible dosing to control stimulant intake.

Yes. Rhino King’s Ransom features a full-disclosure label with no proprietary blends. All ingredient doses are clearly listed, including the five trademarked compounds in the formula.

This product is built for advanced users and experienced athletes who want maximum-dosed pre-workout performance, a clean label with no proprietary blends, and a balanced combination of pump, energy, and nootropic support.

MuscleSport Rhino King’s Ransom Legacy Edition is available through Cross The Limits, an authorised UK retailer. Orders placed before 4pm are dispatched the same day, with free UK shipping on orders over £89.