Best energy drink 2021

Which is the best energy drink in the UK?

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The 10 best energy drinks to buy in the UK

The top 10 list of the best energy drinks lists various brands and prices

Review10Best compares the best energy drinks in the UK and selects the one by Relentless as the best energy drink. In a energy drink buying guide, you can read more about the features of the different energy drinks and see a recommendation on which energy drink to buy in the UK in 2021. By considering the top list of energy drinks, you can find the best energy drinks and save time shopping online.


Table of contents

  1. Read the ultimate energy drink buying guide
  2. View the energy drink picks and see how they rank in the top list

SEE THE TOP 10 LIST →
(skip buying guide)


Best energy drinks: A complete buying guide

All you need to know before buying a great energy drink

Picture of a energy drink

Energy drinks have become massively popular in recent years, offering consumers the chance to increase their energy levels to get them through the day. With so many different beverages to choose from, finding the best energy drink isn’t the easiest, especially if you’ve never tried one before.

Looking for the best energy drink but don’t know what’s worth buying? Check out the handy guide below for all the info you need:

What are energy drinks?

An energy drink is a beverage that contains a variety of natural stimulants, namely caffeine, that offer mental and physical stimulation. Available as carbonated and non-carbonated beverages, energy drinks come in countless flavours and feature a wide range of ingredients that can help provide you with energy.

Why should you buy a good energy drink?

Energy drinks can help boost your energy levels by providing high caffeine and sugar content. This makes them handy for people that are feeling tired from a lack of sleep, as the energy provided can make it easier to focus on things. While their high caffeine can be dangerous when drunk in high amounts, the best energy drinks offer a refreshing beverage that makes you feel more alert and less tired.

Another picture of a energy drink
How to choose the right energy drink?

Choosing the best energy drink tends to boil down to person preferences. Like soft drinks, there are many types of energy drinks to choose from, so it’s often a case of finding something that tastes nice. Here are some things to consider when looking to buy an energy drink:

  • Taste: An obvious factor to consider, make sure the drink you buy has an appealing taste to it, and avoid anything if you’re unsure of how it will taste. Most energy drinks come with distinct flavours, so it should be easy enough to find a flavour you are familiar with.
  • Caffeine Content: The more caffeine in an energy drink, the more energy it provides. However, be mindful that drinking too much caffeine can have negative effects on the mind and body, so always make sure you never exceed the daily recommendation of 400mg from energy drinks.
  • Sugar: Energy drinks feature high sugar content too, so you may want to look for sugar-free options if you are mindful of consuming too much sugar. This can also be bad for your health, so it’s always worth checking how much sugar content is in an energy drink before you buy it.
What is the best kind of energy drink in the UK?

There are countless energy drinks to choose from, although they tend to be one of the following types:

  • Carbonated Energy Drinks: The most recognisable energy drinks, they come in many flavours and use an abundance of ingredients, although all feature high caffeine and sugar content (unless they are sugar free.) Tend to be sold in cans of varying sizes, although many are sold in bottles too.
  • Energy Shots: A much more concentrated type of energy drink, they feature less volume but the same caffeine as larger cans or bottles. They are intended to be drunk in a single shot to gain a quick and powerful energy boost.
  • Relaxation Drinks: An emerging product that does the opposite of a traditional energy drink, they are designed to make it easier to relax, featuring calming ingredients along with a range of active ingredients.
…are you ready for the best picks of 2021?

Top 10 list of energy drinks in the UK (January 2021)

The top 10 list shows how brands and their energy drinks compare. Which energy drink is the best?
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Top choice* TOP 1
Image of Relentless 5449000128607 energy drink
Relentless Origin Energy Drink 500 ml (Pack of 12)*
  • Ideal combo of the right ingredients in the right proportion
  • Refreshing, smooth finish and uncompromising flavor
  • Helps give you the stamina and focus
BUY NOW*
TOP 2
Image of Rockstar SUK00A7157 energy drink
Rockstar Punched Energy Drink - Tropical Guava - Caffeinated Drink with Taurine, Guarana, Ginseng, & B-Vitamins - 12 x 500 ml cans*
  • SUPPORTS ACTIVE LIFESTYLES - A varied and balanced diet and a healthy lifestyle are…
  • STAY SHARP - Contains 200 mg caffeine per 500 ml can
  • REDUCES TIREDNESS and FATIGUE - Vitamins B3, B6, and B12 contribute to the reduction…
BUY NOW*
Value deal* TOP 3
Image of Carabao MO-1 energy drink
Carabao Energy Drink Mandarin Orange, 12 x 330ml Case Cans,Low Calories and less Sugar, Tasty Fizzy Flavour, Vegan, Vitamin B, Taurine and Caffeine with Zero Crash, Bulk crates, Multipack*
  • CARABAO – named after the strong-willed water buffalo of Thailand. We are proud…
  • CONTAINS TAURINE, CAFFEINE AND VITIMAN B - which replenishes energy and relieves…
  • HALF THE SUGAR OF RED BULL – all the energy, half the sugar! Carabao provides…
BUY NOW*
TOP 4
Image of Monster E2139 energy drink
Monster Energy Ultra Drink Can 500 ml Can (Pack of 12)*
  • Serve cold for maximum refreshment.
  • Zero sugar and zero calories
  • A little less sweet and lighter-tasting energy drink
BUY NOW*
TOP 5
Image of Morrisons L0461040-P109395131-M109395122 energy drink
Morrisons 1899 Cherry Energy Drink, 250 ml, Pack of 24*
  • Pack of 24
  • Suitable for vegetarians
  • No artificial colours or flavours
BUY NOW*
TOP 6
Image of Emerge  energy drink
Emerge Energy Drink Multipack 24 x 250ml Cans (Original, 1 Crate)*
  • Consume in moderation as part of a varied and balanced diet and healthy lifestyl…
  • Suitable for vegetarians and vegans
  • Emerge is a great tasting energy drink specifically developed to energise your body…
BUY NOW*
TOP 7
Image of Red Bull RB202640 energy drink
Red Bull Energy Drink 12 Pack of 250 ml*
  • Vitalizes Body and Mind
  • Red Bull cans are made of 100% recyclable aluminium
  • Case of (12 pack) 250 ml Red Bull Energy Drink cans
BUY NOW*
TOP 8
Image of Red Bull RB202627 energy drink
Red Bull Sugarfree Energy Drink, 250 ml, Pack of 12*
  • Only 5 calories per each Red Bull Sugar free can of 250 mL
  • Red Bull Sugar free is Red Bull Energy Drink, but sugar free
  • Red Bull Sugar free - No Sugars, just Wiiings
BUY NOW*
TOP 9
Image of Purdey's 201867 energy drink
Purdey’s Rejuvenate Natural Energy Drink 12 x 250 ml Cans*
  • OUR CANS ARE FULLY RECYCLABLE - All our cans are made from recyclable materials.
  • NO ADDED SUGAR, no artificial sweeteners or colours. Purdey’s contains naturally…
  • CAFFEINE FREE- Boosted by vitamins B1, B2, B3, B6, B12 and C to help reduce fatigue…
BUY NOW*
TOP 10
Image of IRN-BRU  energy drink
IRN-BRU Energy Drink 12 x 330 ml*
  • Full Sugar Full Flavour
  • Pack of 12 x 330 ml cans
  • IRN-BRU energised
BUY NOW*

* Affiliate link. We participate in the Amazon Associates Program. As an Amazon Associate we earn from qualifying purchases. There are no additional costs for you. For the top 10 list we consider only products that are available on Amazon while the ranking is based on factors such as customer reviews, number of sales and keyword. It is not a energy drink test. Last Update 2021/01/23 11:54 o'clock.