Naughty Boy Menace is a potent, fully loaded pre-workout formula that brings bigger pumps, energy and focus before workouts for peak performance. Core ingredients feature L-Citrulline and caffeine for nitric oxide support and energy. Naughty Boy gets recognised for heavy dosing and branded actives, not bargain stimulants.

Available Sizes & Variants:

420 grams pre-workout supplement – high potency formula for serious training.

Benefits & Features:

• Strong energy surge drives brutal workouts.
• Supports pumps and hydration for a bigger, longer lasting training session.
• Clear focus helps you stay locked in from warm-up to finish.
• AstraGin and AlphaZone team up to boost absorption and mental sharpness.
• Caffeine at a strong dose powers energy and focus through tough workouts, while glycerol keeps hydration for a pronounced pump that lasts the session.

Naughty Boy is known in the UK and EU for high dosed, transparently labelled pre-workouts that skip cheap stimulants in favour of branded ingredients. Glycersize supports hydration and pumps, AlphaZone backs cognition, and AstraGin enhances absorption, helping you get the most from each scoop. The star ingredient L-Citrulline boosts nitric oxide for better blood flow and pump, while a robust caffeine blend fuels steady energy. This approach is quick and easy for athletes seeking real performance gains, not hype, like a bold men's fragrance, not a good girl perfume.

L-Citrulline (Vegan Fermented), Beta-alanine, GlycerSize (Glycerol Powder 65%), L-Tyrosine (Vegan Fermented), AlphaZone (Alpha-Glyceryl Phosphoryl Choline 50%), Caffeine Anhydrous, Juglans Whole Fruit (Nut Allergen), Biophytum, AstraGin (Astragalus membranaceus & Panax notoginseng) Root Extracts

• GTIN: 658238818678
• Manufacturer: Naughty Boy
• Size: Passion Fruit
• Categories: Best SellersNaughty BoySports SupplementsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Mix 1 serving (14g or 1 slightly heaped scoop) of Naughty Boy Menace, Cherry Cola with 200-250ml of cold water and consume 15-20 minutes before exercise. Store in a cool, dry place away from direct sunlight. Do not exceed 1 scoop in any 24-hour period. Not suitable for children, pregnant women, and persons sensitive to caffeine. For allergens, see ingredients in bold. Product may contain traces of nuts.

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

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

L-Citrulline is a key amino acid that helps drive the body's production of nitric oxide, supporting blood vessel function and blood flow.

This form is vegan fermented for higher purity and bioavailability.

Within this formulation, L-Citrulline appears as a well‑bioavailable amino acid that helps support healthy circulatory function and athletic performance by improving perfusion and nutrient delivery to muscles.

L-Citrulline takes part in nitric oxide synthesis, which can help support blood flow and muscle oxygen delivery during activity.

It helps with normal regulation of vascular function and energy supply during exercise, aligning with everyday health and performance guidance.

Its role fits with other nutrients in the blend to help with everyday energy metabolism and muscular endurance during training.

This product isn't meant to diagnose, treat, cure, or prevent any disease.

Naughty Boy is well known in the UK and EU sports nutrition scene for innovative, high‑dosed, transparently labeled supplements, with a clear focus on ingredient quality over quantity. This brand’s reputation rests on delivering clinically substantiated dosages and leveraging branded components such as Glycersize™, AlphaZone™ and AstraGin®, which aligns with our commitment to purity, potency and real-world performance. Naughty Boy’s approach resonates with our emphasis on robust manufacturing philosophy and traceable ingredient sourcing, reinforced by our evaluation alongside our team of medical experts and our quality certification process.

We selected Naughty Boy over others because their high‑dosage formulations are paired with branded, evidence‑supported components that support hydration, focus and energy, making this brand a natural fit for Naughty Boy Menace. This product line is well suited to a performance‑driven pre‑workout profile, and the brand’s parent philosophy mirrors Welzo’s standards for safety, transparency and continuous quality improvement. This combination meets our exacting criteria for credibility, testing and product fit.