The Curse! Stim-Free Pump
JNX Sports

The Curse! Stim-Free Pump Review

SuppsSimplified Score
D · Sub-Clinical

Doses too low to expect the researched effects.

Backed by 6 peer-reviewed citations
Energy0.0/10
🧠Mood/Focus0.0/10
💪Pumps0.0/10
🏋Performance0.0/10
SuppsSimplified Score
D · Sub-Clinical

Doses too low to expect the researched effects.

Backed by 6 peer-reviewed citations
Energy0.0/10
🧠Mood/Focus0.0/10
💪Pumps0.0/10
🏋Performance0.0/10
Servings / container
40
Price per serving
$0.90
Cost per point
$0.25
per formula score point
Caffeine
0 mg
0 cups of coffee
Strengths
  • Genuinely caffeine-free
  • Improves meaningfully at 2 scoops
  • Simple, fully disclosed formula
Watch-outs
  • No focus or mood support at all
  • Most doses too low at 1 scoop
  • Needs 2 scoops for a real effect

Effects Timeline

AI-estimated changes in effects over the first 3 hours after taking the recommended serving.

05100h1h2h3h
AI analysis

The Curse! Stim-Free Pump leans toward pumps and performance, with no caffeine and nothing for focus in the formula at all.

At the standard single-scoop serving, most ingredients are dosed too low to do much — the label's own two-scoop option gets you a lot closer to a real effect.

Honest take: Underdosed and overpriced at the standard scoop — you'll need the full two scoops just to feel it.

The Curse! Stim-Free Pump Ingredient breakdown

  • Citrulline Malate 2:14.5 g
    56%Under-dosed
  • Betaine Anhydrous2.5 g
    100%Clinically effective
  • Beta-Alanine1.6 g
    36%Under-dosed
  • L-Arginine0.75 g
    19%Under-dosed
  • Taurine0.6 g
    30%Under-dosed
  • L-Tyrosine0.25 g
    13%Under-dosed
  • Sodium (as Himalayan Rock Salt)200 mg
    Hydration support
  • Chloride340 mg
    Hydration support

Evidence references

Int J Sport Nutr Exerc Metab · 2024 · n=331

Effect of Beta-Alanine Supplementation on Maximal Intensity Exercise in Trained Young Male Individuals: A Systematic Review and Meta-Analysis

Nutrients · 2026 · n=644

Effects of Citrulline Malate Supplementation on Exercise Performance: A Systematic Review and Three-Level Meta-Analysis

Military Medicine · 2015

Tyrosine for Mitigating Stress and Enhancing Performance in Healthy Adult Humans, a Rapid Evidence Assessment of the Literature

Scandinavian Journal of Medicine & Science in Sports · 2025 · n=308

Does One Shot Work? The Acute Impact of a Single Taurine Dose on Exercise Performance: A Meta-Analytic Review

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