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Pre Workout

Pre-workout supplements are designed to support energy, focus and performance before training. GymStack carries stimulant, low-stim and stim-free formulas so you can match your caffeine tolerance and training time.

Explore powders, ready-to-mix sachets and pump-focused blends from established sports nutrition brands. Filter by ingredient profile, flavour and format.

Order online with fast UK shipping. Free delivery on orders over £75.

Explore related hubs: creatine, intra-workout, energy shots, hydration. See all brands on our brands A–Z page.

17% off

Brain Gains
Brain Gains Switch On 225g Gold Rush

Sale price £33.99 Regular price £40.99

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18% off

Bulk
Bulk Creatine Monohydrate 200g Unflavoured

Sale price £8.99 Regular price £10.99

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17% off

Kaged Muscle
Creatine HCl - Capsules - 75 vcaps

Sale price £33.99 Regular price £40.99
Unit price£0.45 each

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17% off

Reflex Nutrition
Creapure Creatine - Powder - 500g

Sale price £51.99 Regular price £62.99
Unit price£103.98 /kg

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17% off

SciTec
Hot Blood Hardcore - Tropical Punch - 375g

Sale price £29.99 Regular price £35.99
Unit price£79.97 /kg

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Redcon1
Total War - Preworkout - Watermelon - 420g

Sale price £39.99 Regular price £47.99
Unit price£95.21 /kg

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17% off

Weider
Maximum Krea-Genic - 200 caps

Sale price £48.99 Regular price £58.99
Unit price£0.24 each

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17% off

Trec Nutrition
BoogieMan - Tropical - 300g

Sale price £34.99 Regular price £41.99
Unit price£116.63 /kg

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17% off

Weider
Arginine + Ornithine 4000 - 180 caps

Sale price £28.99 Regular price £34.99
Unit price£0.16 each

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18% off

Weider
Total Rush 2.0 - Cranberry - 375g

Sale price £31.99 Regular price £38.99
Unit price£85.31 /kg

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17% off

Raw Nutrition
CBUM Essential Pre-Workout - Grape - 423g

Sale price £28.99 Regular price £34.99
Unit price£68.53 /kg

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19% off

Trec Nutrition
NitroBolon - Tropical - 300g

Sale price £21.99 Regular price £26.99
Unit price£73.30 /kg

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18% off

Raw Nutrition
Creatine Monohydrate Stick Packs - Unflavoured - 30 x 5g

Sale price £22.99 Regular price £27.99
Unit price£153.27 /kg

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17% off

Animal
Animal Creatine Chews - Grape - 120 chewable tablets

Sale price £58.99 Regular price £70.99
Unit price£0.49 each

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17% off

Trec Nutrition
BoogieMan - Candy - 300g

Sale price £34.99 Regular price £41.99
Unit price£116.63 /kg

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21% off

Allnutrition
Creatine Muscle Max - Orange - 250g

Sale price £10.99 Regular price £13.99
Unit price£43.96 /kg

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18% off

Weider
Creatine HCl - 3000mg - 150 caps

Sale price £35.99 Regular price £43.99
Unit price£0.24 each

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17% off

Animal
Animal Creatine Chews - Fruit Punch - 120 chewable tablets

Sale price £43.99 Regular price £52.99
Unit price£0.37 each

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17% off

Trec Nutrition
Citrulline Synergy - Mango - 240g

Sale price £23.99 Regular price £28.99
Unit price£99.96 /kg

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17% off

PEScience
Prolific - Mango Splash - 280g

Sale price £38.99 Regular price £46.99
Unit price£139.25 /kg

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18% off

Stacker2 Europe
6th Gear Creatine Complex - Lemon - 1135g

Sale price £36.99 Regular price £44.99
Unit price£32.59 /kg

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18% off

Applied Nutrition
Pump 3G Pre-Workout - Rainbow Unicorn - 375g

Sale price £31.99 Regular price £38.99
Unit price£85.31 /kg

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17% off

PEScience
High Volume (New Formula) - Guava Pineapple Punch - 270g

Sale price £38.99 Regular price £46.99
Unit price£144.41 /kg

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17% off

Nutrex
OutLift Clinical - Miami Vice - 628g

Sale price £51.99 Regular price £62.99
Unit price£82.79 /kg

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18% off

Applied Nutrition
Creatine + Hydration - Berry Slush - 360g

Sale price £26.99 Regular price £32.99
Unit price£74.97 /kg

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18% off

Naughty Boy
Menace Pre-Workout Shot - Strawberry & Mango - 12 x 60 ml.

Sale price £32.99 Regular price £39.99
Unit price£45.82 /L

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18% off

Naughty Boy
Menace V2 - Strawberry Mango - 420g

Sale price £45.99 Regular price £55.99
Unit price£109.50 /kg

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17% off

Nutrex
L-Arginine 1000 - 120 caps

Sale price £23.99 Regular price £28.99
Unit price£0.20 each

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17% off

NOW Foods
Micronized Creatine Monohydrate - 1000g

Sale price £66.99 Regular price £80.99
Unit price£66.99 /kg

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18% off

NOW Foods
Kre-Alkalyn Creatine - 240 vcaps

Sale price £55.99 Regular price £67.99
Unit price£0.23 each

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18% off

JNX Sports
The Omen! - 100 vcaps

Sale price £31.99 Regular price £38.99
Unit price£0.32 each

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17% off

Naughty Boy
Menace V2 - Sour Apple - 420g

Sale price £52.99 Regular price £63.99
Unit price£126.17 /kg

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20% off

NOW Foods
L-Arginine - 1000mg - 60 tablets

Sale price £15.99 Regular price £19.99
Unit price£0.27 each

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17% off

NOW Foods
Arginine & Citrulline - 120 vcaps

Sale price £19.99 Regular price £23.99
Unit price£0.17 each

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17% off

NOW Foods
Creatine Monohydrate - Pure Powder - 600g

Sale price £33.99 Regular price £40.99
Unit price£56.65 /kg

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18% off

Naughty Boy
Pump - Pineapple Crush - 400g

Sale price £32.99 Regular price £39.99
Unit price£82.48 /kg

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18% off

NOW Foods
Creatine Monohydrate - 750mg - 120 vcaps

Sale price £17.99 Regular price £21.99
Unit price£0.15 each

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18% off

NOW Foods
Kre-Alkalyn Creatine - 120 vcaps

Sale price £30.99 Regular price £37.99
Unit price£0.26 each

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18% off

JNX Sports
The Omen! Non-Stimulant - 100 vcaps

Sale price £31.99 Regular price £38.99
Unit price£0.32 each

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18% off

JNX Sports
The Curse! - Watermelon - 255g

Sale price £30.99 Regular price £37.99
Unit price£121.53 /kg

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17% off

EFX Sports
Kre-Alkalyn EFX Powder - Rainbow Blast - 220g

Sale price £49.99 Regular price £59.99
Unit price£227.23 /kg

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18% off

NOW Foods
L-Arginine - 1000mg - 180 tablets

Sale price £41.99 Regular price £50.99
Unit price£0.23 each

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17% off

Naughty Boy
Menace V2 - Sour Blue Razz - 420g

Sale price £52.99 Regular price £63.99
Unit price£126.17 /kg

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18% off

Kaged Muscle
Pre-Kaged Sport - Fruit Punch - 272g

Sale price £31.99 Regular price £38.99
Unit price£117.61 /kg

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18% off

NOW Foods
Arginine & Citrulline - 240 vcaps

Sale price £35.99 Regular price £43.99
Unit price£0.15 each

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18% off

NOW Foods
L-Citrulline - 750mg - 180 vcaps

Sale price £35.99 Regular price £43.99
Unit price£0.20 each

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18% off

Naughty Boy
Energy - Tropical Punch - 390g

Sale price £32.99 Regular price £39.99
Unit price£84.59 /kg

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18% off

NOW Foods
Beta-Alanine - 750mg - 120 caps

Sale price £27.99 Regular price £33.99
Unit price£0.23 each

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17% off

Dorian Yates
Blood and Guts Sachets - Watermelon - 20 x 19g

Sale price £33.99 Regular price £40.99
Unit price£89.45 /kg

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18% off

JNX Sports
The Shadow! - Blue Raspberry - 270g

Sale price £36.99 Regular price £44.99
Unit price£137.00 /kg

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