10 Best Amino Acids Supplements in The UK

Last updated on 10/08/2025

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Optimum Nutrition BCAA Capsules, Amino Acids Tablets, 1000 mg of Essential Amino Acids BCAAs with L-Leucine, L-Isoleucine and L-Valine, Unflavoured, BCAA Supplements, 100 Servings, 200 Capsules

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Why We Love It

Versatile for pre and post-workouts.
Supports daily amino acid intake.
Aids muscle growth and maintenance.

Main Highlights

Amino acid food supplement – a versatile pre-workout and post-workout support for athletes through branched-chain amino acids (BCAAs)
ON BCAA Capsules deliver 1000 mg of the three BCAAs –L-leucine, L-isoleucine and L-valine in a 2:1:1 ratio in each serving
The BCAA are 3 of the 9 essential amino acids that cannot be made by the body and must be obtained from the diet
Take 2 capsules daily with your favourite sports drink or protein shake to support your daily amino acid intake
Take anytime throughout the day
*Amino Acids are building blocks of protein, and protein contributes to the growth and maintenance of muscle mass: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012

Applied Nutrition BCAA Powder - Branched Chain Amino Acids BCAAs Supplement, Amino Hydrate Intra Workout & Recovery Energy Drink (1.4kg - 100 Servings) (Fruit Burst)

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Why We Love It

Boosts workout intensity effectively.
Aids in quick muscle recovery.
Enhances hydration for peak performance.

Main Highlights

High-Intensity Workout Boost: Power through intense exercise with our BCAA powder. Designed for bodybuilders, powerlifters, athletes, and fitness enthusiasts, it provides essential amino acids that help you sustain energy and enhance muscle endurance during high-intensity exercise and workouts.
Enhanced Recovery: Our BCAA powder is perfect for post-workout recovery. It helps replenish vital electrolytes and salts lost during exercise, and the added Citrulline aids in flushing out harmful substances, ensuring optimal recovery and reduced muscle soreness.
Maximised Muscle Hydration: Experience superior muscle hydration with our BCAA powder. Infused with a balanced blend of electrolytes, it ensures your muscles stay hydrated and perform at their best during even the most intense workouts, reducing the risk of cramps and fatigue.
Quick and Efficient Absorption: Our BCAA powder is formulated for rapid absorption, delivering essential nutrients quickly to your muscles. This fast-acting formula helps you stay energised and focused, allowing you to push harder and recover faster, making every workout count.
Tested For Athletes: Batch tested by Informed-Sport to meet the highest standards, ensuring top-quality nutrition for elite performance. This ensures that you are only putting the best in your body to fuel your workout.

LOVE LIFE SUPPLEMENTS

Essential Amino Acids - All 9 EAA Amino Acids with All 3 BCAA's Plus 6 More EAAs to Build and Repair Muscle | 300 Tablets / 60 Servings | 5-10g per Serving | High in Leucine and Vegan Friendly

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Why We Love It

Improved formula for overall health.
High bioavailability and fast absorption.
Ideal pre/intra workout solution.

Main Highlights

9 ESSENTIAL AMINO ACIDS – CLINICALLY BALANCED FORMULA - Optimised blend of all 9 essential amino acids (EAAs), now with more L-Leucine and added L-Histidine for enhanced muscle support. Includes L-Leucine, L-Valine, L-Isoleucine, L-Lysine HCl, L-Phenylalanine, L-Threonine, L-Methionine, L-Histidine, and L-Tryptophan. Supports protein synthesis, recovery, nutrient absorption, and overall health.
5G EAA PER SERVING – 300 HIGH-STRENGTH TABLETS - Delivers 5 grams of pure EAAs per daily serving (1g per tablet). With 300 tablets per tub, you get a full 2-month supply of fast-absorbing, muscle-nourishing amino acids — ideal for daily performance, recovery, and body composition goals.
FAST-ACTING & HIGHLY BIOAVAILABLE - Absorbs in under 20 minutes — significantly faster than food-based proteins. Get the building blocks your body needs, when it needs them. Ideal for rapid recovery, lean muscle support, and daily energy demands.
CLEAN & VEGAN – ZERO FILLERS OR ADDITIVES - Formulated with zero binders, stearates, coatings, dyes, or fillers. 100% vegan and non-GMO. A pure, no-compromise EAA supplement for clean athletes and health-conscious users.
PERFECT FOR PRE/INTRA WORKOUT PERFORMANCE - Fuel strength, endurance, and lean gains. Take before or during workouts to support muscle protein synthesis, reduce fatigue, and improve recovery. Trusted by athletes, lifters, and high-performers alike.

BCAA 2:1:1-3000mg per Serving - 425 Vegan Tablets (not Capsules or Powder) - 4.5 Month Supply - Pre Workout Branched Chain Amino Acids + Vitamin B6 - Made in The UK - Xellerate Nutrition

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Why We Love It

Exceptional value with 141 day supply.
Maximum potency tablets, not capsules.
Supports muscle growth and recovery.

Main Highlights

✔ BEST VALUE, 141 DAY SUPPLY - 425 High quality BCAA tablets (not BCAA capsules) offering amazing VALUE keeping you replenished with a convenient BCAA 2:1:1 ratio supply for an incredible 141 DAYS. We offer MORE value than other leading brands - they offer 120 to 240 tablets to our amazing 425 tablets per tub. Suitable for Vegetarian and Vegan.
✔ MAXIMUM POTENCY & MORE INGREDIENTS - Our high quality BCAA 2:1:1 ratio tablets contain a massive 1000mg per tablet much stronger than other leading brands, reducing the number of tablets you need to take. Each 3 tablet 3000mg daily serving provides 1500mg L-Leucine, 750mg L-Isoleucine, 750mg L-Valine and 3mg Vitamin B6.
✔ BUILD MUSCLE, FAST RECOVERY, BURN FAT - BCAA's are proven to stimulate protein synthesis, adding muscle quickly and efficiently, while reducing muscle fatigue. BCAA's also help muscles recover faster reducing soreness and DOMS, whilst helping your body burn fat while protecting your muscles.
✔ UK MANUFACTURED - Many BCAA supplements are imported from Asia or the US. Ours are made RIGHT HERE in the UK so you are safeguarded by the highest manufacturing and hygiene standards in the world. Our local manufacturing means you receive the freshest tablets possible, not supplements that have spent weeks being transported to the UK.
✔ WE CARE - At Nu U Nutrition we are dedicated to not only providing you with premium nutritional supplements derived from the purest sourced ingredients, but we are also committed to providing YOU with the highest level of customer service possible.

Solgar Amino 75 Essential Acid Vegetable Capsules - Pack of 90 - 8 Aminos Complex - For Metabolic Processes - Easy to Digest - Vegan, (Packaging may vary)

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Why We Love It

Unique amino acid formula.
Easy to digest form.
Committed to sustainability.

Main Highlights

✓ UNIQUE AMINO ACID FORMULA - Solgar Amino 75 Essential Amino Acids is a Vegan formula containing amino acids which are essential for human health. This comprehensive once a day formula is encapsulated in easy to swallow vegetable capsules
✓ EASY TO DIGEST FORM - Solgar Amino 75 Essential Amino Acids combines the 8 essential amino acids L-Lysine, L-Leucine, L-Phenylalanine, L-Valine, L-Methionine, L-Histidine, L-Isoleucine and L-Threonine for a holistic approach giving you the full spectrum of these essential protein building blocks
✓ NATURAL WELLNESS - We believe that cleaner is better, we craft our vitamins and minerals in small batches to help ensure consistency and purity from bottle to bottle
✓ COMMITTED TO SUSTAINABILITY - For over 70 years we've used 100% recyclable amber glass bottles. We believe that cleaner is better, we craft our vitamins and minerals in small batches to help ensure consistency and purity from bottle to bottle
✓ GOLD STANDARD - All Solgar products meet our industry recognized “Gold Standard” for excellence, made using naturally sourced ingredients and innovating since 1947

Applied Nutrition Amino Fuel - Amino Acids Supplement, EAA Essential Amino Acids Powder, Muscle Fuel & Recovery (390g - 30 Servings) (Fruit Salad) (New)

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Why We Love It

Supports muscle development effectively.
Comes in delicious flavors.
Tested for elite athletes.

Main Highlights

Versatile Daily Use for All Fitness Goals – Designed to support all types of training, from bodybuilding and endurance to functional fitness. Perfect for use before, during, or after workouts to stay fuelled, hydrated, and ready to perform.
Advanced EAA Formula for Muscle Recovery – Delivers 11g of total amino acids per serving, including 9g of essential amino acids (EAAs) and 6g of BCAAs to support muscle repair, endurance, and post-workout recover
Intra-Workout Hydration Support – Includes essential electrolytes to help replenish minerals lost through sweat, supporting hydration and sustained performance during intense training.
Zero Sugar and Light Tasting – Naturally refreshing with zero sugar, zero fat, and no unnecessary calories. Easy to mix, light on the stomach, and ideal for use before, during, or after training.
Enhanced with Glutamine and B-Vitamins – Contains 2g of L-Glutamine plus Vitamin B6 and B12 to aid energy metabolism, reduce fatigue, and promote muscle maintenance throughout your workouts.
Trusted by Athletes Worldwide – Vegan-friendly, halal certified and Informed-Sport tested for banned substances. Backed by elite athletes and formulated to meet the highest quality standards.

Total Amino Boost - Full Spectrum - All 20 Amino Acids Including All BCAAs -120 Vegan Capsules with Free Form pre-digested Amino Acids with Advanced Coenzyme Support. No Additives - UK Made

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Why We Love It

Highest potency for effectiveness.
Purest ingredients guaranteed.
No risk, money-back guarantee.

Main Highlights

✔ HIGHEST POTENCY – Swiss BioEnergetics Total Amino Boost capsules each contain the full spectrum of amino acids - providing all 20 amino acids at an ideal ratio for the body. Includes complete BCAA. Our formula is meticulously crafted to mirror the amino acid ratios found in very high-quality natural protein sources like eggs. This ensures that you receive a balanced and optimized profile of essential and non-essential amino acids, enhancing the overall effectiveness of the supplement for muscle growth, repair, and overall health.
✔ EFFECTIVE – Delivered as Free Form pre-digested Amino Acids - These amino acids do not require digestion and can be used immediately by the body. Also, with added Vitamin B6 which plays a crucial role as a coenzyme in the metabolism of amino acids, ensuring that your body efficiently absorbs and utilizes each amino acid for optimal muscle growth and repair. Absolutely no fillers, no binders and no flow agents. Contains: L-Glutamic acid, L-Glutamine, L-Lysine, L-Arginine, L-Leucine, L-Methionine, Glycine, L-Phenylalanine, L-Serine, L-Isoleucine, L-Threonine, L-Tyrosine, L-Valine, L-Cysteine, L-Histidine, L-Alanine, L-Aspartic Acid, L-Proline, L-Tryptophan, Taurine
✔ PURE – Swiss BioEnergetics Total Amino Boost capsules are manufactured using only the finest quality raw materials in their best natural grade and purest form so that we can guarantee you receive a consistently high-quality product. A good alternative to taurine powder. Also, can be taken conveniently at smaller doses - taurine 500mg or taurine 1000mg Swiss BioEnergetics utilizes the latest research to bring you premium, balanced, scientifically validated formulations free from: ✘lactose, ✘gluten, ✘wheat, ✘maize, ✘soya, ✘yeast, ✘dairy, ✘GMOs. Suitable for Vegetarians and Vegans
✔ PEACE OF MIND – Our products are manufactured exclusively in the UK to GMP code of practice. Swiss BioEnergetics uses only the finest quality natural raw materials in their highest grade and purest form so that we can guarantee consistently high-quality gummies, capsules, tablets, pills, powders, herbals, serums, face creams, masks, hair supplements and vitamins for men, women, and children. The GMP code of practice and ISO 9001 testing, ensure you are safeguarded by the highest standards in the world
✔ NO RISK GUARANTEE – we have a no questions asked, money back guarantee policy so you can improve your nutrition and health with no risk. Also, we invest in the finest ingredients built into cutting edge formulas with no fancy labels, bottles or superfluous brand advertising. This is our model for delivering you real value with exceptional quality

Optimum Nutrition Gold Standard BCAA Train + Sustain, Amino Acids Pre Workout Powder, Sports Drink with Vitamin C, Zinc, Magnesium and Electrolytes, Peach & Passionfruit Flavour, 28 Servings, 266 g

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Why We Love It

Supports fatigue reduction effectively.
Enhances normal immune function.
Offers great taste variety.

Main Highlights

Optimum Nutrition Gold Standard BCAA Train + Sustain for FATIGUE REDUCTION* and IMMUNE SUPPORT** ; a delicious and refreshing intra -workout shake
ON Gold Standard BCAA Train + Sustain contains 374 mg of ELECTROLYTES, 200 mg of RHODIOLA and 2.6 g of L-Leucine in each serving plus 5 g of BCAAs in a 2:1:1 ratio
Includes Vitamin C and zinc to support the normal function of the immune system**
A combination of carefully selected ingredients including magnesium to support the reduction of tiredness and fatigue*
Available in 5 great tasting varieties; to prepare, add 2 rounded scoops of powder to 350 ml of cold water, mix, and serve
*Vitamin C and magnesium contribute to the reduction of tiredness and fatigue
**Vitamin C and zinc contribute to the normal function of the immune system
*Source: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012 of 16 May 2012

Total Amino - Full Spectrum Amino Acids Capsules - BCAA - EAA - Free Form - 120 Vegan Capsules - G&G Vitamins

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Why We Love It

Delivers full spectrum amino acids.
Promotes faster bodily absorption.
Vegan, GMO-free formulation.

Main Highlights

Full Spectrum Amino Acids - providing all 20 amino acids at an ideal ratio for the body. Includes complete BCAA.
Free Form - These amino acids do not require digestion and can be used immediately by the body
Vegan Amino Acids, through naturally fermented enzymes. NO animal products used. Informed Sport Approved - suitable for high-level athletes.

Optimum Nutrition Amino Energy Pre Workout Powder, Energy Drink with Amino Acids, BCAA, L-Glutamine and L-Leucine, Food Supplement with Vitamin C and Caffeine, Fruit Fusion Flavour, 30 Servings, 270 g

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Why We Love It

Innovative ready-to-mix energy source.
Boosts energy and focus.
Supports active, healthy living.

Main Highlights

A caffeine-infused ANYTIME-ENERGY drink*, a ready-to-mix powder alternative to carbonated beverages, flavoured waters, coffee and teas
With 5 g of amino acids per serving, including BCAA, L-Glutamine and L-Leucine, plus 100 g of natural caffeine and vitamin C to help BOOST YOUR ENERGY AND FOCUS*
Pre-workout powder designed for fitness lovers and professional athletes to support your exercise and workout regime
ON low-calorie food supplement with zero sugar designed for those leading an active lifestyle to improve diet and overall nutrition
Sports drink in 6 great tasting varieties, so you don’t have to sacrifice excellent flavour to get the boost you crave
*Vitamin C contributes to normal energy-yielding metabolism. Caffeine contributes to increased alertness and improved concentration. Source: COMMISSION REGULATION (EU) No 432/2012 of 16 May 2012; EFSA Journal 2011;9(4):2054 24

8.7

Excellent

We scanned 720 products

We reviewed these offers relevant to the Amino Acids Supplements within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Optimum Nutrition, Applied Nutrition, LOVE LIFE SUPPLEMENTS, Xellerate NUTRITION, Solgar, swiss bioenergetics, G&G Vitamins, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Amino Acids Supplements in the market, we considered we took a deep dive into 3601 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Optimum Nutrition BCAA Capsules, Amino Acids Tablets, 1000 mg of Essential Amino Acids BCAAs with L-Leucine, L-Isoleucine and L-Valine, Unflavoured, BCAA Supplements, 100 Servings, 200 Capsules. We love many things about this product by Optimum Nutrition. What sets it apart from the competition is Versatile for pre and post-workouts. , Supports daily amino acid intake. , Aids muscle growth and maintenance.
The best value product for most shoppers and where user satisfaction is continuously the highest is Applied Nutrition BCAA Powder - Branched Chain Amino Acids BCAAs Supplement, Amino Hydrate Intra Workout & Recovery Energy Drink (1.4kg - 100 Servings) (Fruit Burst) by Applied Nutrition based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Amino Acids Supplements and the best cost-to-value ratio is Optimum Nutrition Gold Standard BCAA Train + Sustain, Amino Acids Pre Workout Powder, Sports Drink with Vitamin C, Zinc, Magnesium and Electrolytes, Peach & Passionfruit Flavour, 28 Servings, 266 gat Optimum Nutrition with a 31% discount.
Our list of the best Amino Acids Supplements is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Amino Acids Supplements in The UK

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We scanned 720 products

We concluded that: