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JNX Sports
The Curse!
Our analysis — editorial take, not from the label
A long-running budget bestseller that still relies on two proprietary blends, so exact beta-alanine, creatine, and citrulline doses aren't disclosed; the 155 mg caffeine figure is directly confirmed on the label and sits at the low-moderate end for the category.
- Caffeine
- 155 mg
- Citrulline
- 900 mg(blend)
- Beta-alanine
- 3,000 mg (blend)
- Servings
- 50
Price tier: Budget · relative cost per full serving across this database
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One of the largest flavor lineups in the category, with about 17 options (Blue Raspberry, Green Apple, Watermelon, Fruit Punch, Dark Grape, Pina Colada, Mango Chili and more), sweetened with sucralose and acesulfame potassium.
Label verified: July 2026 · View label source
Label data
Per full serving · 50 servings per container · from the manufacturer's panel
| Caffeine | 155 mg |
|---|---|
| Energizing Muscle Fuel Blend (Beta-Alanine, Creatine Monohydrate, Citric Acid) | 3,000 mg (blend) |
| Amplifier Blend (L-Citrulline, L-Arginine Alpha-Ketoglutarate) | 900 mg (blend) |
| Proprietary blend | Yes |
Primary label source: JNX Sports – official The Curse! product page · verified July 2026
Cautions
- Two proprietary blends (Energizing Muscle Fuel Blend and Amplifier Blend) hide the individual beta-alanine, creatine, citrulline, and arginine AKG amounts.
- All figures above are per single 5.1 g scoop; the label allows up to 3 scoops, which would triple the caffeine to about 465 mg.
- Beta-alanine (undisclosed dose within the blend) may cause a harmless tingling sensation if dosed near typical study levels.
Formulated for healthy adults — not intended for anyone under 18. Full health & safety notes
Product details
Where this label sits
JNX Sports The Curse! sits in the moderate stim tier of the Scoop Sense pre-workout database, which spans 0–400 mg of caffeine per serving. The label uses at least one proprietary blend, so a blend total stands in place of the individual amounts inside it. It runs 50 servings per container at the full labeled serving. Everything on this page comes from the manufacturer's supplement facts panel as of July 2026 — never from the marketing page.
Key ingredients & studied doses
- Caffeine Anhydrous · 155 mg. A moderate single-scoop dose, roughly one to two cups of coffee; on the lower end for a stimulant pre-workout.
- Energizing Muscle Fuel Blend (Beta-Alanine, Creatine Monohydrate, Citric Acid) · 3,000 mg (blend). Proprietary blend; the individual beta-alanine and creatine amounts aren't disclosed, so neither can be confirmed against the roughly 3.2 g beta-alanine or 3-5 g creatine doses used in most research.
- Amplifier Blend (L-Citrulline, L-Arginine Alpha-Ketoglutarate) · 900 mg (blend). Well under the 6-8 g of citrulline alone used in most pump research; the proprietary format hides how much of the 900 mg is citrulline versus arginine AKG.
Flavors & sweetener
One of the largest flavor lineups in the category, with about 17 options (Blue Raspberry, Green Apple, Watermelon, Fruit Punch, Dark Grape, Pina Colada, Mango Chili and more), sweetened with sucralose and acesulfame potassium.
Who it's best for
Most regular gym-goers — the caffeine dose is in the range of about two cups of coffee. A reasonable pick when cost per serving matters. Skip it if you want every individual dose disclosed on the label. Derived from the label figures above — not medical advice.
How we log this label
Every entry is built the same way: we read the current supplement facts panel, log each disclosed dose, compare it against the amounts used in published research, flag proprietary blends, and state the cautions plainly. The full methodology explains each step.
This label against the research
How we evaluate labelsEach bar shows the amount commonly used in published human research, and where this label's dose falls against it. Research amounts are context, not a recommendation — they are not doses, and nothing here is medical advice.
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Caffeine155 mg
78% of the low end of the studied range0studied range 200 mg–400 mg450 mg
Performance studies most often use 3–6 mg per kg of body weight, which works out to roughly 200–400 mg for most adults. The FDA cites 400 mg a day as an amount not generally associated with negative effects in healthy adults.
Source: Guest et al., Journal of the International Society of Sports Nutrition 2021 — “Caffeine has consistently been shown to improve exercise performance when consumed in doses of 3–6 mg/kg body mass.”
-
Beta-alanineundisclosed
This label does not state beta-alanine on its own — it sits inside “Energizing Muscle Fuel Blend (Beta-Alanine, Creatine Monohydrate, Citric Acid)”, disclosed only as a combined 3,000 mg (blend). A combined total is not a dose of anything named inside it, so there is nothing here to compare against the research. Studied amounts run 3.2 g to 6.4 g.
Source: Rezende et al., Frontiers in Physiology 2020 — “It seems that substantial amounts of BA are required to increase MCarn, with most studies using doses of ~3.2–6.4 g·day−1, for periods ranging from 4 to 24 weeks.”
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Creatineundisclosed
This label does not state creatine on its own — it sits inside “Energizing Muscle Fuel Blend (Beta-Alanine, Creatine Monohydrate, Citric Acid)”, disclosed only as a combined 3,000 mg (blend). A combined total is not a dose of anything named inside it, so there is nothing here to compare against the research. Studied amounts run 3 g to 5 g.
Source: Kreider et al., Journal of the International Society of Sports Nutrition 2017 — “Once muscle creatine stores are fully saturated, creatine stores can generally be maintained by ingesting 3–5 g/day”
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Citrullineundisclosed
This label does not state citrulline on its own — it sits inside “Amplifier Blend (L-Citrulline, L-Arginine Alpha-Ketoglutarate)”, disclosed only as a combined 900 mg (blend). A combined total is not a dose of anything named inside it, so there is nothing here to compare against the research. Studied amounts run 6 g to 8 g.
Source: Gough et al., European Journal of Applied Physiology 2021 — “The most commonly employed dose of CM is a single acute 8 g dose”
-
L-arginineundisclosed
This label does not state l-arginine on its own — it sits inside “Amplifier Blend (L-Citrulline, L-Arginine Alpha-Ketoglutarate)”, disclosed only as a combined 900 mg (blend). A combined total is not a dose of anything named inside it, so there is nothing here to compare against the research.
One or more amounts on this label sit inside a proprietary blend, so the individual doses behind the blend total cannot be compared at all.
Common questions about JNX Sports The Curse!
How much caffeine is in JNX Sports The Curse!?
155 mg per full labeled serving — roughly 1.6 small cups of coffee. Within the Scoop Sense pre-workout database (0–400 mg per serving) that places it in the moderate stim tier. The FDA cites about 400 mg per day as an amount generally not associated with negative effects in healthy adults, and coffee, tea, and energy drinks count toward the same total.
Why does JNX Sports The Curse! make my skin tingle?
The 3,000 mg (blend) of beta-alanine. The prickling (paresthesia) in the face, neck, and hands is generally considered harmless, is dose-dependent, and fades on its own — typically within about an hour. Most beta-alanine studies use 3.2 g per day.
What does the proprietary blend in JNX Sports The Curse! hide?
The Energizing Muscle Fuel Blend (Beta-Alanine, Creatine Monohydrate, Citric Acid) lists 3,000 mg (blend) as a combined total. A blend total tells you the sum of its ingredients, not the individual doses inside it — which is why blend entries can't be checked against studied amounts.
Do the numbers for JNX Sports The Curse! assume one scoop or two?
All figures on this page are per full labeled serving. All figures above are per single 5.1 g scoop; the label allows up to 3 scoops, which would triple the caffeine to about 465 mg..