caffeine + theanine (162 offers*)

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NEUBRIA COGNIFUEL 30 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Orange & Pineapple
NEUBRIA COGNIFUEL 30 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Orange & Pineapple
£34.99
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Caffeine + Theanine 300mg per Capsule, Caffeine Anhydrous and Green Tea Extract 98%, 120 Vegan Capsules, 4 Months Supply, Supplement for Enhanced Focus and Energy - by Apollo's Hegemony
Caffeine + Theanine 300mg per Capsule, Caffeine Anhydrous and Green Tea Extract 98%, 120 Vegan Capsules, 4 Months Supply, Supplement for Enhanced Focus and Energy - by Apollo's Hegemony
£17.10
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NEUBRIA COGNIFUEL 30 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Blueberry & Pomegranate
NEUBRIA COGNIFUEL 30 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Blueberry & Pomegranate
£34.99
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Four Sigmatic Organic High Caffeine Coffee | Dark Roast Extra Strong Ground Coffee with L-Theanine & Cordyceps Mushroom Extract | Energy Booster Mushroom Super Coffee without the Jitters | 12oz Bag
Four Sigmatic Organic High Caffeine Coffee | Dark Roast Extra Strong Ground Coffee with L-Theanine & Cordyceps Mushroom Extract | Energy Booster Mushroom Super Coffee without the Jitters | 12oz Bag
£21.19
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Amazon-marketplace.co.uk
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Bubbl & Co Clarity Focus Formula | Clear Focus Without The Crash | Plant extracts, L-theanine, VIT B6, Taurine, L-tyrosine, Natural Caffeine (10 Drinks)
Bubbl & Co Clarity Focus Formula | Clear Focus Without The Crash | Plant extracts, L-theanine, VIT B6, Taurine, L-tyrosine, Natural Caffeine (10 Drinks)
£11.49
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Amazon-marketplace.co.uk
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L-Theanine Green Tea Brain Boost Complex with Caffeine Magnesium Capsules Sample Pack x7
L-Theanine Green Tea Brain Boost Complex with Caffeine Magnesium Capsules Sample Pack x7
£1.31
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Amazon-marketplace.co.uk
Delivery from £1.90
L-Theanine 100mg and Caffeine 50mg Capsules | Energy Boost, Alertness, Invigorating | Oxford Vitality (365)
L-Theanine 100mg and Caffeine 50mg Capsules | Energy Boost, Alertness, Invigorating | Oxford Vitality (365)
£10.99
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NEUBRIA COGNIFUEL 10 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Blueberry & Pomegranate
NEUBRIA COGNIFUEL 10 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Blueberry & Pomegranate
£14.99
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KROMA. Ceremonial Grade Matcha Powder, Gluten Free Green Tea Collagen Powder with Mushrooms, Ginger, Turmeric, L Theanine, Maca, Matcha Latte Powder, Natural Caffeine for Energy Support, 60 Servings
KROMA. Ceremonial Grade Matcha Powder, Gluten Free Green Tea Collagen Powder with Mushrooms, Ginger, Turmeric, L Theanine, Maca, Matcha Latte Powder, Natural Caffeine for Energy Support, 60 Servings
£213.17
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NEUBRIA COGNIFUEL 10 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Orange & Pineapple
NEUBRIA COGNIFUEL 10 Sachets - Gym & Workout Energy Drink with Electrolytes for Hydration, Caffeine, L-Tyrosine, Choline, L-Theanine, Magnesium, B Vitamins & Plant Extracts - Orange & Pineapple
£14.99
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Caffeine 100mg and Theanine 160mg Complex | Pure | Vegan (180 Capsules)
Caffeine 100mg and Theanine 160mg Complex | Pure | Vegan (180 Capsules)
£15.49
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Caffeine 100mg and Theanine 160mg Complex - 360 Capsules | Pure | Vegan
Caffeine 100mg and Theanine 160mg Complex - 360 Capsules | Pure | Vegan
£24.99
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L-Theanine 100mg and Caffeine 50mg Capsules | Energy Boost, Alertness, Invigorating | Oxford Vitality (120)
L-Theanine 100mg and Caffeine 50mg Capsules | Energy Boost, Alertness, Invigorating | Oxford Vitality (120)
£5.99
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G Spot Soothe, Scarlet Apple & Sage, Pack of 12 x 250ml, Calming Sparkling Soft Drink Boosted with Magnesium, Reishi, Zinc, Theanine, Low Calorie, Vegan, Caffeine Free, Natural Flavours
G Spot Soothe, Scarlet Apple & Sage, Pack of 12 x 250ml, Calming Sparkling Soft Drink Boosted with Magnesium, Reishi, Zinc, Theanine, Low Calorie, Vegan, Caffeine Free, Natural Flavours
£48.54
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Matcha Collagen Peptides Powder with L-Theanine & Natural Caffeine | Dairy-Free Matcha Latte | Matcha with Collagen for Skin, Hair & Nails | Keto & Paleo Friendly
Matcha Collagen Peptides Powder with L-Theanine & Natural Caffeine | Dairy-Free Matcha Latte | Matcha with Collagen for Skin, Hair & Nails | Keto & Paleo Friendly
£19.95
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80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 4 Pack
80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 4 Pack
£13.99
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Nootropics Brain Supplements, High Potency Cognitive Enhancer for Energy, Focus, Brain Function, Mental Alertness & Memory with Bacopa Monnieri, Ginkgo, Tyrosine, Theanine, Caffeine, B6 & B12
Nootropics Brain Supplements, High Potency Cognitive Enhancer for Energy, Focus, Brain Function, Mental Alertness & Memory with Bacopa Monnieri, Ginkgo, Tyrosine, Theanine, Caffeine, B6 & B12
£16.99
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Caffeine 100mg and Theanine 160mg Complex - 30 Capsules | Pure | Vegan
Caffeine 100mg and Theanine 160mg Complex - 30 Capsules | Pure | Vegan
£4.99
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Caffeine 100mg and Theanine 200mg Complex | Pure | Vegan (90 Capsules)
Caffeine 100mg and Theanine 200mg Complex | Pure | Vegan (90 Capsules)
£8.49
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80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 1 Pack
80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 1 Pack
£4.50
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80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Mint Matcha Flavor Brain Bullet, 4 Pack
80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Mint Matcha Flavor Brain Bullet, 4 Pack
£13.99
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80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 1 Bag
80mg Caffeine & 160mg L-Theanine Focus Enhancing Energy Chews - Neuroscience Backed Nootropic Stack, Mental Acuity & Cognitive Support | Caramel Frappe Flavor Brain Bullet, 1 Bag
£24.99
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L-Theanine - Food Supplement - 250 mg, 120 Vegan Capsules - Caffeine Free Supplements to Support Anxiety, Stress, Sleep - L Theanine Derived Naturally from Green Tea by NextGenU
L-Theanine - Food Supplement - 250 mg, 120 Vegan Capsules - Caffeine Free Supplements to Support Anxiety, Stress, Sleep - L Theanine Derived Naturally from Green Tea by NextGenU
£7.99
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Supersmart - Smart Pills - with Bacopa Monnieri, Ginkgo biloba & L-theanine - Super Nootropics - Focus & Brain Boost Supplement - Caffeine Pills | Non-GMO & Gluten Free - 60 Vegetarian Capsules
Supersmart - Smart Pills - with Bacopa Monnieri, Ginkgo biloba & L-theanine - Super Nootropics - Focus & Brain Boost Supplement - Caffeine Pills | Non-GMO & Gluten Free - 60 Vegetarian Capsules
£36.00
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Nutricost Caffeine with L-Theanine, 100mg of Each, 240 Capsules, 240 Servings - Non-GMO and Gluten Free
Nutricost Caffeine with L-Theanine, 100mg of Each, 240 Capsules, 240 Servings - Non-GMO and Gluten Free
£16.27
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Bulk Complete Thermogenic, Pre-Workout With Caffeine, Chromium, Green Tea, Citrus Aurantium, Kola Nut, BioPerine, Cayenne Pepper, L-Tyrosine, L-Theanine, Pack of 90, 90 Servings, Packaging May Vary
Bulk Complete Thermogenic, Pre-Workout With Caffeine, Chromium, Green Tea, Citrus Aurantium, Kola Nut, BioPerine, Cayenne Pepper, L-Tyrosine, L-Theanine, Pack of 90, 90 Servings, Packaging May Vary
£8.01
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Bulk Complete Thermogenic, Pre-Workout With Caffeine, Chromium, Green Tea, Citrus Aurantium, Kola Nut, BioPerine, Cayenne Pepper, L-Tyrosine, L-Theanine, Pack of 270, 270 Servings, Packaging May Vary
Bulk Complete Thermogenic, Pre-Workout With Caffeine, Chromium, Green Tea, Citrus Aurantium, Kola Nut, BioPerine, Cayenne Pepper, L-Tyrosine, L-Theanine, Pack of 270, 270 Servings, Packaging May Vary
£15.51
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Sports Research, L-Theanine & Caffeine, 2-in-1 Formula, 60 Softgels
Sports Research, L-Theanine & Caffeine, 2-in-1 Formula, 60 Softgels
£84.00
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fruugo.co.uk
Delivery from £12.99
Soccer Supplement Focus90 Caffeine Shot (12 Pack), 200mg Caffeine with L Theanine and Beta Alanine in a Pre Workout Shot, Berry Flavour
Soccer Supplement Focus90 Caffeine Shot (12 Pack), 200mg Caffeine with L Theanine and Beta Alanine in a Pre Workout Shot, Berry Flavour
£24.95
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Just Vitamins - L-Theanine 200mg x120 Vegan Capsules (4 Month Supply) - High Strength Brain Power Nootropic, GABA Alternative, Non-GMO, Caffeine-Free - UK Made Supplements
Just Vitamins - L-Theanine 200mg x120 Vegan Capsules (4 Month Supply) - High Strength Brain Power Nootropic, GABA Alternative, Non-GMO, Caffeine-Free - UK Made Supplements
£14.95
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Higher Nature L-Theanine Vegan Capsules 90 Capsules
Higher Nature L-Theanine Vegan Capsules 90 Capsules
£25.99
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Xero Picks Wellness Infused Flavored Toothpicks - 100 Picks (5 Pack) (Variety) Vitamin C, Elberberry, Zinc, Gluosamine, Curcumin, Theanine, Melatonin, Caffeine, B12, B6
Xero Picks Wellness Infused Flavored Toothpicks - 100 Picks (5 Pack) (Variety) Vitamin C, Elberberry, Zinc, Gluosamine, Curcumin, Theanine, Melatonin, Caffeine, B12, B6
£33.99
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OMYUM - Premium Cacao Mushroom Coffee Alternative (30 Single-Serve Packets) Organic Blend with Lion’s Mane, Reishi, Cordyceps, Ashwagandha, Maca & L-Theanine for Calm, Focused Energy - Low Caffeine
OMYUM - Premium Cacao Mushroom Coffee Alternative (30 Single-Serve Packets) Organic Blend with Lion’s Mane, Reishi, Cordyceps, Ashwagandha, Maca & L-Theanine for Calm, Focused Energy - Low Caffeine
£115.28
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HIGHER NATURE Effervescent Energy & Focus - 13 Tablets
HIGHER NATURE Effervescent Energy & Focus - 13 Tablets
£7.95
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USN Qhush Black Frosted Lemon Pre Workout 220G: Explosive Energy Drink Powder—High Caffeine Energy Supplement With Vitamin B6 Complex For Focus And Performance
USN Qhush Black Frosted Lemon Pre Workout 220G: Explosive Energy Drink Powder—High Caffeine Energy Supplement With Vitamin B6 Complex For Focus And Performance
£18.00
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Applied Nutrition Shred X Thermo Powder, Weight Loss, Fat Burner with Green Tea, L Carnitine, Theanine, Tyrosine, Thermogenic Energy Detonator Supplement, Sour Gummy Bear, 300 g
Applied Nutrition Shred X Thermo Powder, Weight Loss, Fat Burner with Green Tea, L Carnitine, Theanine, Tyrosine, Thermogenic Energy Detonator Supplement, Sour Gummy Bear, 300 g
£35.19
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Qhush Black Berry Blaze Pre Workout 220G: Explosive Energy Drink Powder-High Caffeine Energy Supplement With Vitamin B6 Complex For Focus And Performance
Qhush Black Berry Blaze Pre Workout 220G: Explosive Energy Drink Powder-High Caffeine Energy Supplement With Vitamin B6 Complex For Focus And Performance
£14.99
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Skill Nutrition Pre-Workout Green Apple - No-Crash Formula with Extended-Release Caffeine | Xtenergy®, TheaGreen™, Vitacholine®, Astragin® | Vegan, Halal | B-Vitamins, Citrulline, Beta-Alanine
Skill Nutrition Pre-Workout Green Apple - No-Crash Formula with Extended-Release Caffeine | Xtenergy®, TheaGreen™, Vitacholine®, Astragin® | Vegan, Halal | B-Vitamins, Citrulline, Beta-Alanine
£22.26
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amazon.co.uk
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Skill Nutrition Pre-Workout Watermelon - No-Crash Formula with Extended-Release Caffeine | Xtenergy®, TheaGreen™, Vitacholine®, Astragin® | Vegan, Halal | B-Vitamins, Citrulline, Beta-Alanine
Skill Nutrition Pre-Workout Watermelon - No-Crash Formula with Extended-Release Caffeine | Xtenergy®, TheaGreen™, Vitacholine®, Astragin® | Vegan, Halal | B-Vitamins, Citrulline, Beta-Alanine
£22.72
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amazon.co.uk
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Styrkr Gel 30 Caffeine+ - Box of 12 - Unflavoured
Styrkr Gel 30 Caffeine+ - Box of 12 - Unflavoured
£26.22
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