Darkside® Onslaught Ultima™ | High-Stim Pre-Workout

For lifters who've earned it. Onslaught Ultima sits at the top of the Darkside stim ladder. Two scoops (20g) stack 7000mg L-Citrulline, 4000mg beta-alanine, 2500mg stabilised glycerol and 300mg caffeine anhydrous (plus guarana), with N-Acetyl-L-Tyrosine, CDP-choline, Rednite® beet, Bacopa, Lion's Mane, Cocobuterol®, L-theanine and Paradoxine®. Dual-dosed on purpose: one scoop (10g) to find your line, two when you mean it. This is the big one — for experienced users with a real tolerance. Contains walnut. Start at one scoop, always.

£37.99 GBP

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Key Highlights

Top of the Darkside stim ladder
7000mg L-Citrulline, 4000mg beta-alanine, 2500mg glycerol
300mg caffeine anhydrous plus guarana
Dual-dosed — one scoop to find your line, two when you mean it
Contains walnut. Experienced users only

Key Ingredients

L-Citrulline — 7000mg (2 scoops)
Beta-Alanine — 4000mg
Caffeine Anhydrous — 300mg
Lion's Mane Extract — 300mg

Allergen information

Juglans Regia (Walnut) Extract — contains walnut (nut allergen)

View full ingredient list (18 in total)

Stabilised Glycerol Powder — 2500mg
N-Acetyl-L-Tyrosine — 1000mg
CDP-Choline — 1000mg
Rednite® Beet Extract — 800mg
Bitter Orange (Fruit) Extract — 500mg
Bacopa Monnieri (20% bacosides) — 300mg
Juglans Regia (Walnut) Extract — 300mg contains walnut (nut allergen)
Guarana (22% caffeine) — 150mg
Cocobuterol® — 100mg
L-Theanine — 100mg
White Willow Bark Extract — 100mg
Macuna Pruriens — 50mg
Paradoxine® (Grains of Paradise) — 45mg
Bioperine® — 5mg

Suggested Use

Start with one scoop (10g) in water to assess tolerance; build to two (20g) as needed. Take 20–30 minutes before training. High-stimulant formula — experienced users only. Contains walnut.

Quick Facts

Caffeine: 300mg per serving
Servings: 20 per container

Who Is It For?

Experienced stim users with a real caffeine tolerance
Those who want the biggest hit in the range

FAQ

Important Information

Food supplements should not replace a balanced and varied diet and healthy lifestyle. Do not exceed the recommended daily intake. Keep out of reach of children. Not suitable for children, pregnant or breastfeeding women. Consult a healthcare professional if taking medication or if you have a medical condition. Store in a cool, dry place.

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