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A pouch of The Energy Booster - pre workout with bcaas developed by Innermost
A pouch of The Energy Booster - pre workout with bcaas developed by Innermost
A pouch of The Energy Booster - pre workout with bcaas developed by Innermost
Che Lingo dancing to some music for Innermost
A pouch of The Energy Booster - pre workout with bcaas developed by Innermost
A pouch of The Energy Booster - pre workout with bcaas developed by Innermost

The Energy Booster

Elevate your energy.

We set out to create the most effective pre-workout with added BCAAs on the market. One that wasn’t packed with crazy amounts of caffeine. Did we succeed? It's won a bunch of Best Pre-workout Awards, so yeah. Formulated to raise energy, improve stamina and to help push yourself further. Activate your superpowers.

The Energy Booster

Fresh pineapple flavour | 300g

£24.95 £24.95

Product Highlights

Active Ingredients

For every serving of The Energy Booster: BCAA Complex (5g) as Leucine (2g), Isoleucine (1g), Valine (1g), Citrulline Malate (2g), Maca (1.25g), Beta Alanine (1.2g), Guarana (100mg), Caffeine (71mg), Vitamin B Complex (B1, B2, B3, B5, B6, B7, B9, B12 all at 100% NRV).

Scroll down to learn about these ingredients and how they benefit you.

Per: 10g 100g
Energy 162 kJ 1,624 kJ
Calories 38 kcal 382 kcal
Protein 7g 74g
Carbohydrates 2.0g 19.7g
of which sugars 0.3g 3.2g
Fats 0.02g 0.20g
of which saturates 0.01g 0.06g
Dietary fibre 0.3g 2.5g
Sodium Nil Nil

Allergens: None.
Other ingredients: Natural flavours only. We use sucralose as it is the most widely tested low-calorie sweetener and approved by all major food standard agencies in the world.

How And When To Use

Ideal as a pre/intra-workout drink or when you need an energy boost.

Directions: Add 10g (2 rounded teaspoons) to 300-400ml of cold water in your Innermost shaker and shake until dissolved. Adjust amount of water for desired level of sweetness. Shake between sips.

Works Well With: The Focus Capsules to complement your increased energy with enhanced mental processing and cognitive performance.

User trials

*Results based on 66 participants surveyed over a 30 day period. Participants were requested to log a diary and complete a survey at the end of the month.

I want an amazing workout every time…

Now you can. 

Having consistently high energy levels would be great but in today’s increasingly busy world, that isn't always possible. Sometimes it can feel like there aren't enough hours in the day. The result of all that rushing around can mean a workout that doesn’t feel like you’ve done yourself justice. 

If this sounds all too familiar, then check out The Energy Booster. Wave goodbye to running on empty, and hello to a new lease of life. Formulated by leading nutritionists, The Energy Booster is a pre-workout game-changer that helps you get the most out of each and every single workout whether it’s in terms of speed, strength, power or endurance.

Can I take it on an empty stomach?

Absolutely - in fact it’s a great way to get the most out of fasted cardio workouts when your energy levels might be lower than usual but you still want to get a great workout regardless. The added BCAAs will ensure you're not breaking down muscle and focuses your body on burning fat for energy.

Will I get a tingling sensation after taking it?

Some people don't get it while others may. If you do feel slight tingles, don’t worry this is completely normal, and just an effect of the beta alanine. It lets you know the product is working. If you do get it, it will pass within half an hour or so.

Can I use it on days when I’m not working out?

The Energy Booster has been formulated as a pre-workout product to provide shorter term energy boost during workouts, so for best results we’d recommend using it before your workouts.

Awarded best pre-workout in the Men’s Health Sports Nutrition Awards. Each serving contains 5g of energy-boosting amino acids, along with natural stimulants such as maca root and guarana.

Ingredients backed by science


With so many “miracle” ingredients being touted out there, it can be hard to know what really works. We believe evidence-based ingredients are the best way to better health. With decades of clinical studies behind these active ingredients showing how they can help boost energy, increase endurance and stamina, and safeguard lean muscle during exercise, we're confident that you’ll thank us later.

Per Serving:


BCAA Complex (5g): Of the twenty amino acids, nine are considered essential amino acids, meaning they must be obtained through your diet. Three of these nine are called branched-chain amino acids (BCAAs): leucine, isoleucine and valine. These are the most important amino acids for muscle growth and maintenance. You can find them here in an optimal 2:1:1 ratio. References > 1, 2.


Citrulline Malate

Citrulline Malate (2g): This is L-Citrulline (an amino acid) combined with malic acid (an organic salt). Citrulline malate can improve aerobic and anaerobic performance during prolonged exercise by reducing fatigue and increasing nitric oxide in the body. This relaxes blood vessels and increases blood flow and oxygen to working muscles. References > 3, 4.



Maca (1.25g): Reduces effects of physical and mental stress, and increases energy and libido. Grown for more than 2,000 years in the highest mountains of Peru, maca has recently found widespread popularity as an adaptogen. These are a group of natural ingredients that support the body's ability to deal with stress. References > 5, 6.


Beta Alanine

Beta Alanine (1.2g): When you exercise, metabolites accumulate in the muscles causing pH levels to drop resulting in fatigue. Carnosine can help reduce this acidity but the amount of carnosine made in the body depends on the amount of beta alanine available, and it's only when there's excess beta alanine that carnosine levels can increase to offset fatigue and aid performance. References > 7, 8.



Guarana (100mg): An Amazonian fruit regarded as the elixir of long life. In addition to the stimulating action of its caffeine content, other benefits have been attributed to it’s alkaloid content. These include improved alertness, reaction time, memory, mood and performance during physical exercise. References > 9, 10.



Caffeine (71mg): The value of caffeine on mental and physical performance has been well-established. Research evidences positive effects on improving alertness, mood, cognitive function, fat oxidation, and exercise performance. References > 11, 12.


Vitamin B Complex

Vitamin B Complex (B1, B2, B3, B5, B6, B7, B9, B12 all at 100%*): For reduction of tiredness and fatigue. They also play a role in maintaining hair and skin health, and regulating the nervous system. There are eight essential B vitamins: thiamin, riboflavin, niacin, pantothenic acid, vitamin B6, biotin, folic acid and vitamin B12. We bring all eight together at each one's daily recommended intake. References > 13, 14.

*%NRV (Nutrient Reference Values) are guidelines on daily amounts of vitamins and minerals to be consumed to maintain a healthy diet.

Learn More:  Boost Your Cardio Performance With These Easy Steps
Learn More:  Why Is Running So Good For You? Here's Why You Should Dust Off Your Trainers

Why it's special

Amino Acids

Branched-chain amino acids (BCAAs), citrulline malate and beta alanine are amino acids that are vital for muscle maintenance and energy regulation. BCAAs are known for their role in muscle growth and repair. Citrulline malate allows the body to increase blood flow, maximising endurance. Beta alanine is shown to increase TTE (time to exhaustion), and reduce fatigue.


The B vitamins have an effect on many of the body’s functions, but are best known to help boost your mood and reduce fatigue. While they have a direct impact on energy levels and cell metabolism, they also support good digestion, healthy brain function, cardiovascular health and muscle tone.


Maca, guarana and caffeine contain properties that reduce physical stress, which increases endurance and decreases fatigue. They are a part of a select group of ingredients that also support focus and performance. Nootropics have many other helpful effects to improve your fitness, such as boosting motivation and energy.

When should I use the product?

The Power Booster anytime during the day or before your workout.
The Energy Booster right before and/or during your workout.
The Detox Booster works well as a morning/afternoon pick-me-up.
The Define Booster anytime during the day but morning works well.

How many servings do I get?

Based on taking each product every day as recommended:

The Power Booster will last 60 days.
The Energy Booster will last 30 days.
The Detox Booster will last 60 days.
The Define Booster will last 100 days.

Can I mix and match products?

Yes, absolutely. We developed all our products so that you can mix and match any of them depending on your individual goals and needs. You will get the benefits of each of them regardless of whether you're taking them alone or with any of our other products.

What sort of testing do you do?

We go over and above to ensure you get the best quality and safest products possible. We only use ingredients that have a visible supply chain, and our manufacturing facilities are approved to the highest regulatory standards. Once we receive ingredients, we batch test every single one before it gets approval to go into the manufacturing process. That isn’t technically an official requirement but it’s something that we think should be.

Real People, Real Results

Customer Reviews

Based on 50 reviews
Grace Jenkins
First time pre-work out user

I really am enjoying this so far, I’ve not used pre-workout before but I was starting to feel sluggish during my workouts so I thought I’d give it ago.

The flavour is really nice, I would say it tastes like pineapple and biscuits which weird but still good!

Not too much caffeine so I can feel energised for my workout at 6.30 -7pm but still get to sleep 👍🏼

I’ve actually been more motivated to workout too because I know I’ll have the energy to do so, great stuff

Fantastic Product

Really love this product, out of the 100's of products I found, this product was described perfectly, clear ingredients and questions available, and it was a great decision to purchase this. I am on my second month and getting up at 5am to hit the gym has become so much easier having this lovely energy to get in flow with. It is also a great addition to my daily greens that I sip whilst at my desk or just before the school run, a really great lift!

Fab pre-workout!

Really like this pre-workout. It definitely keeps you going without that horrible caffeine buzz you get with others. Would be better to have different flavours as I don’t love the pineapple, but other than that it’s excellent!


I've tried loads of pre workouts and this one is great. Tastes alright and gives a nice consistent supply of extra energy during my workout without the tingly itchy feeling. Will re purchase

Alexandra Budai
Big hopes, little performance

Yea, no. I tried. I wanted to like it and I wanted it to work. Even a subtle effect would have been enough. But it arrived, mesmerised me with its beaut packaging and then nothing happened. I drank another drink with it I, waited, moved about but nothing. So I am inclined to doubt the hype. Sorry.

Best Ive ever had

Best pre workout ive ever tried. Effect wise and taste wise.
Has a very natural taste , which I loved , not like other brands with chemical, sickening taste. Very natural ingredients as well.
Also noticed that there is no huge crash like from other preworkouts, which is also a big plus.
Didnt experience any tingling.

I now take it everyday before my morning workouts.

Will buy again and try new flavours.