JNX Sports The Curse! Pre Workout is a strong pre workout that fuels energy, focus and endurance for your sessions, helping you hit new personal bests. This energising muscle fuel mix includes beta-alanine, creatine and caffeine to support energy, endurance and clear focus. The Curse! stands out for its clarity, solid actives, and bold brand heritage.

Available Sizes & Variants:

250g Sour Candy pre workout - Bold taste plus robust energy for intense sessions.

Benefits & Features:

• Gives you a kick of energy for tough workouts, helping you push harder.
• This energising muscle fuel mix includes beta-alanine, creatine and caffeine to support energy, endurance and clear focus.
• Supports muscle pumps with nitric oxide boosters for improved vascularity.
• From JNX Sports, a label known for bold, top pre workout formulas, it sticks to proven actives with minimal fillers and clear energy.
• Sour Candy flavour makes hydration and energy a tad more enjoyable, so you actually look forward to your warm up even on tough training days.

JNX Sports has built a loyal crowd with bold, high energy formulas that athletes genuinely reach for. The Curse! leans on classic actives including beta-alanine, creatine and caffeine, paired with L-citrulline and L-arginine for a muscle pump and steady focus. Olive leaf extract adds mood support without overloading the system, while rapid absorption and minimal fillers help keep stomach upset to a minimum. It’s a trusted choice for athletes who want reliable intensity and a flavour they enjoy.

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Caffeine Anhydrous

Caffeine anhydrous is a clean, dry form of caffeine that acts as a quick stimulant to boost energy and sharpen focus.

This version is a common stimulant in pre-workout blends, delivering fast absorption and burst of action, and helps keep motivation steady during training.

What Does Caffeine Anhydrous Do?

Caffeine helps lift alertness and perceived energy, backing endurance and focus during workouts.

Scientific studies indicate these effects can occur at usual doses, aiding steady performance and focus.

Dr. Grgic from the University of Zagreb found caffeine boosts endurance and alertness across sports, matching EFSA‑style performance expectations.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

JNX Sports is Welzo’s chosen partner for The Curse! Pre Workout because the brand is widely recognised for bold, effective pre‑workout formulations and trusted performance claims. This reputation reflects a focus on delivering energising and motivating products that athletes consistently rely on, making JNX Sports a standout in a crowded market. Our team valued the brand’s dedication to scientifically grounded blends and its ongoing emphasis on rapid absorption and strong ingredient synergy, notably through classic actives such as beta‑alanine, creatine and caffeine. This gives a clear competitive edge over alternatives aiming for similar effects. The Curse! is a prime example of the brand’s approach, combining nitric oxide support with focus and stamina drivers, while minimising unnecessary fillers. Welzo evaluated this brand and product through our rigorous process, aligning with our standards for quality and safety, supported by our expert team of doctors, nurses, and nutritionists and our ingredient quality and purity standards.