Stacker2 Europe Extreme Energy Kickin' Classic is a convenient ready-to-drink energy drink that gives a quick energy lift and sharper focus when you really need it.

This blend taps caffeine together with essential B vitamins to help speedy energy and mental clarity, and it’s built for when you’re pushing through long days or training sessions.

The brand's long standing commitment to quality makes it feel like a trusted pick for energy seekers, and that consistency matters.

Available Sizes & Variants:

12 x 355 ml energy drink - Sugar-free formula with a high caffeine kick and bold flavour.

Benefits & Features:

• Sugar-free formula keeps you sharp without the crash.
• High caffeine delivery powers sustained focus through long days at work or training and B vitamins support energy metabolism so you stay alert without the afternoon slump which is common with other beverages.
• Intended for daily use by active people as an energy drink.
• Fast acting profile delivers a quick, smooth energy lift every time.
• The formula blends caffeine, B vitamins and taurine to support rapid energy lift and focused attention, with bold red bull flavors behind the taste that linger.

This US born brand has a strong European presence, known for high energy drinks that power athletes and night owls. Kickin' Classic relies on a potent caffeine hit paired with B vitamins to support energy metabolism, and the sugar-free formula keeps flavour bold without the sugar crash. Research from Dr. Grgic of the University of Zagreb shows caffeine boosts alertness. Quality you can trust. The drink uses a blend of natural and artificial flavours and is produced to consistent quality standards, so you get reliable energy when you need it.

Energy, Fat, of which saturates, Carbohydrate, of which sugars, Protein, Salt, Caffeine, Vitamin B3 (as Niacinamide), Vitamin B5 (as d-calcium pantothenate), Vitamin B6 (as Pyridoxine Hydrochloride), Vitamin B12 (as cyanocobalamin), Energy, Fat, of which saturates, Carbohydrate, of which sugars, Protein, Salt, Caffeine, Vitamin B3 (as Niacinamide), Vitamin B5 (as d-calcium pantothenate), Vitamin B6 (as Pyridoxine Hydrochloride), Vitamin B12 (as cyanocobalamin)

• GTIN: 878114020241
• Manufacturer: Stacker2 Europe
• Categories: Stacker2 Europe
• Best buy: 6 - 24 months+

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.

Consume 1 can (355 ml) of Stacker2 Europe Extreme Energy, Kickin' Classic before any kind of physical activity for optimal results. Store in a cool, dry place and keep out of reach of children. High caffeine content. This is a food supplement and should not be used as a substitute for a varied diet. Not intended for anyone under the age of 18. Consult a doctor if pregnant, lactating, or if you have any medical conditions. Do not exceed the recommended serving.

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.

The Active Ingredient Is: Caffeine

Caffeine is a energiser naturally spotted in coffee, tea and other plants, delivering quick energy boosts and sharpened alertness.

This component is often used in ready-to-drink drinks to help focus and mental performance, and can be provided in different forms to fit the product.

What Does Caffeine Do?

Caffeine helps keep you awake and supports mental focus, contributing to normal cognitive function. [which many researchers note]

Dr. Grgic at the University of Zagreb found that caffeine can boost alertness and performance in healthy adults, showing its role in both mental and physical activity.

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

Stacker2 is a well regarded partner in the high energy field, known for its solid European footprint and recognisable Extreme Energy line. Its reputation in the active lifestyle market builds a sturdy base for trust and steady supply, which lines up with our criteria for a reliable supplier. Welzo’s medical and product team checked Stacker2 for its history of delivering innovative, high stimulus products that appeal to performance driven users, and our process stressed durability, safety, and consistency in manufacturing. Our crew recognises Stacker2’s market standing and long standing visibility in the high energy segment as a key differentiator when pitted against alternatives. This brand was assessed by Welzo's healthcare professionals for compliance with how we verify ingredient quality. The outcome is a product partner that fits nicely with Welzo’s selection standards for quality and performance.