Christoffer C.
VerifiedThis one is the best I’ve tried so far. Really tasty without tasting of additives and sweeteners. My favorite
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Drop the distractions and get things done with our energizing and refreshing effervescent tablets for energy and focus.
Free shipping over €14.90
Standard delivery costs €3.90.
Delivery within 1-3 business days
The first round is on us
If Fuse is not your thing – no hard feelings.
Just let us know and we will sort your money back!

20 drinks/tube

20 drinks/tube

20 drinks/tube

20 drinks/tube
Add 2 tubes to unlock free shipping.
Total
€0
0 drinks
€0.00 / drink

1. Fuse.

2. Water 200-400 ml.

3. Enjoy!
| Content | Per tablet | *DRI (%) |
|---|---|---|
| Caffeine | 160 mg | - |
| L-theanine | 160 mg | - |
| Vitamin C | 60 mg | 75 |
| Niacin | 12 mg | 75 |
| Vitamin B6 | 1.05 mg | 75 |
| Vitamin B12 | 1.875 µg | 75 |
*Daily reference intake
Dietary supplement, contains sweeteners. Should not be used as an alternative to a varied diet and a healthy lifestyle.
High caffeine content. Not recommended for children, pregnant women or breastfeeding women. Recommended daily dose: 1 tablet. Do not exceed the recommended daily dose. Do not exceed the highest recommended daily caffeine intake for adults (400 mg).
Effervescent tablets with apple and ginger flavor. Contains sweeteners. May contain traces of cereals containing gluten, soybeans and milk.
Ingredients: Acidity regulator: citric acid. Bulking agent: sorbitol. Acidity regulator: sodium hydrogen carbonate. Caffeine. L-theanine. Flavoring. L-ascorbic acid (vitamin C). Anti-caking agent: polyethylene glycol. Sweetener: sucralose. Ginger root extract (Zingiber officinale). Nicotinic acid (vitamin B3). Pyridoxine hydrochloride (vitamin B6). Color: riboflavins. Cyanocobalamin (vitamin B12).
Read more about the ingredients| Content | Per tablet | *DRI (%) |
|---|---|---|
| Caffeine | 160 mg | - |
| L-theanine | 160 mg | - |
| Vitamin C | 60 mg | 75 |
| Niacin | 12 mg | 75 |
| Vitamin B6 | 1.05 mg | 75 |
| Vitamin B12 | 1.875 µg | 75 |
*Daily reference intake
Dietary supplement, contains sweeteners. Should not be used as an alternative to a varied diet and a healthy lifestyle.
High caffeine content. Not recommended for children, pregnant women or breastfeeding women. Recommended daily dose: 1 tablet. Do not exceed the recommended daily dose. Do not exceed the highest recommended daily caffeine intake for adults (400 mg).
Effervescent tablets with blackcurrant flavor. Contains sweeteners. May contain traces of cereals containing gluten, soybeans and milk.
Ingredients: Acidity regulators: citric acid, sodium hydrogen carbonate. Bulking agent: sorbitol. Beetroot concentrate. Caffeine. L-theanine. Flavoring. L-ascorbic acid (vitamin C). Anti-caking agent: polyethylene glycol. Sweetener: sucralose. Nicotinic acid (vitamin B3). Pyridoxine hydrochloride (vitamin B6). Color: riboflavins. Cyanocobalamin (vitamin B12).
Read more about the ingredients| Content | Per tablet | *DRI (%) |
|---|---|---|
| Caffeine | 160 mg | - |
| L-theanine | 160 mg | - |
| Vitamin C | 60 mg | 75 |
| Niacin | 12 mg | 75 |
| Vitamin B6 | 1.05 mg | 75 |
| Vitamin B12 | 1.875 µg | 75 |
*Daily reference intake
Dietary supplement, contains sweeteners. Should not be used as an alternative to a varied diet and a healthy lifestyle.
High caffeine content. Not recommended for children, pregnant women or breastfeeding women. Recommended daily dose: 1 tablet. Do not exceed the recommended daily dose. Do not exceed the highest recommended daily caffeine intake for adults (400 mg).
Effervescent tablets with peach flavor. Contains sweeteners. May contain traces of cereals containing gluten, soybeans and milk.
Ingredients: Acidity regulator: citric acid. Bulking agent: sorbitol. Acidity regulator: sodium hydrogen carbonate. Caffeine. L-theanine. Flavoring. L-ascorbic acid (vitamin C). Anti-caking agent: polyethylene glycol. Sweetener: sucralose. Beetroot concentrate. Nicotinic acid (vitamin B3). Colors: carotenes, riboflavins. Pyridoxine hydrochloride (vitamin B6). Cyanocobalamin (vitamin B12).
Read more about the ingredients| Content | Per tablet | *DRI (%) |
|---|---|---|
| Caffeine | 160 mg | - |
| L-theanine | 160 mg | - |
| Vitamin C | 60 mg | 75 |
| Niacin | 12 mg | 75 |
| Vitamin B6 | 1.05 mg | 75 |
| Vitamin B12 | 1.875 µg | 75 |
*Daily reference intake
Dietary supplement, contains sweeteners. Should not be used as an alternative to a varied diet and a healthy lifestyle.
High caffeine content. Not recommended for children, pregnant women or breastfeeding women. Recommended daily dose: 1 tablet. Do not exceed the recommended daily dose. Do not exceed the highest recommended daily caffeine intake for adults (400 mg).
Effervescent tablets with mango flavor. Contains sweeteners. May contain traces of cereals containing gluten, soybeans and milk.
Ingredients: Acidity regulator: citric acid. Bulking agent: sorbitol. Acidity regulator: sodium hydrogen carbonate. Caffeine. L-theanine. Flavoring. L-ascorbic acid (vitamin C). Anti-caking agent: polyethylene glycol. Sweetener: sucralose. Beetroot concentrate. Nicotinic acid (vitamin B3). Colors: carotenes, riboflavins. Pyridoxine hydrochloride (vitamin B6). Cyanocobalamin (vitamin B12).
Read more about the ingredients| Content | Per tablet | *DRI (%) |
|---|---|---|
| Caffeine | 160 mg | - |
| L-theanine | 160 mg | - |
| Vitamin C | 60 mg | 75 |
| Niacin | 12 mg | 75 |
| Vitamin B6 | 1.05 mg | 75 |
| Vitamin B12 | 1.875 µg | 75 |
*Daily reference intake
Dietary supplement, contains sweeteners. Should not be used as an alternative to a varied diet and a healthy lifestyle.
High caffeine content. Not recommended for children, pregnant women or breastfeeding women. Recommended daily dose: 1 tablet. Do not exceed the recommended daily dose. Do not exceed the highest recommended daily caffeine intake for adults (400 mg).
Effervescent tablets with lemon and strawberry flavor. Contains sweeteners. May contain traces of cereals containing gluten, soybeans and milk.
Ingredients: Acidity regulator: citric acid. Bulking agent: sorbitol. Acidity regulator: sodium hydrogen carbonate. Caffeine. L-theanine. Flavoring. Beetroot concentrate. L-ascorbic acid (vitamin C). Anti-caking agent: polyethylene glycol. Sweetener: sucralose. Nicotinic acid (vitamin B3). Colors: riboflavins. Pyridoxine hydrochloride (vitamin B6). Cyanocobalamin (vitamin B12).
Read more about the ingredientsDiscover our unique formulation and doses per tablet
The rest of the ingredients in the ingredient list are there to provide flavor, color and make sure the tablet dissolves properly in water.
Made in the EU
Vegan
GMO-free
Lactose-free
Gluten- and soy-free
ISO 22000 certified

Caffeine and L-theanine for steady energy without quick spikes or crashes.
Dissolves quickly in water for a simple and great-tasting energy solution.
A clear amount of caffeine per tablet that contributes to increased alertness and reduced tiredness.
Sugar-free, vegan and free from artificial colors.
We have collected the most common questions about ingredients, effect, delivery and everything in between. Can't find what you are looking for? Contact us by live chat or email - we are happy to help.


Fuse Energy is an energy drink in the form of effervescent tablets. You put one tablet in water and get a refreshing energy drink with caffeine, L-theanine and B vitamins - with no sugar and no unnecessary additives.
Put one Fuse in a glass or bottle with about 250-400 ml of water. Let it dissolve completely and enjoy.
One Fuse contains 160 mg of caffeine, roughly equivalent to two cups of coffee.
No, Fuse has no added sugar.
Delivery usually takes 1-3 business days within Ireland.
To keep the bottle looking good and working well for as long as possible, we recommend hand washing. Avoid the dishwasher.
What verified customers are saying.
899 reviews
Christoffer C.
VerifiedThis one is the best I’ve tried so far. Really tasty without tasting of additives and sweeteners. My favorite
Christoffer C.
VerifiedGood taste and absolutely doesn't taste like any sweetener!
Christa L.
VerifiedThe taste could have been stronger but otherwise good ^^
Christa L.
VerifiedThe taste could have been stronger but otherwise good^^
Christa L.
VerifiedThe flavor could have been stronger but otherwise good^^
Christa L.
VerifiedThe taste could have been stronger but otherwise good^^
Christoffer C.
VerifiedThis one is the best I’ve tried so far. Really tasty without tasting of additives and sweeteners. My favorite
Christa L.
VerifiedThe taste could have been stronger but otherwise good ^^
Christa L.
VerifiedThe flavor could have been stronger but otherwise good^^
Christoffer C.
VerifiedGood taste and absolutely doesn't taste like any sweetener!
Christa L.
VerifiedThe taste could have been stronger but otherwise good^^
Christa L.
VerifiedThe taste could have been stronger but otherwise good^^