10 Best Amino Acid Complex Powder in The UK

Last updated on 10/08/2025

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EAA Amino Acids Powder, All 9 Essential Amino Acids Including BCAA's and 2 Grams of Leucine per Serving, Apple & Kiwi Flavour, 348g - 60 Servings (5g of EAA's per Serving) - Love Life Supplements

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Why We Love It

Enhances muscle mass and strength.
Promotes faster recovery post-activity.
Pure, natural, and nutritious blend.

Main Highlights

ENHANCED FORMULA: Now featuring all 9 Essential Amino Acids (EAAs) – L-Leucine, L-Valine, L-Isoleucine, L-Lysine Hydrochloride, L-Phenylalanine, L-Threonine, L-Methionine, L-Tryptophan, and L-Histidine Hydrochloride. Plus, enjoy an increased 2 grams of Leucine per serving!
OPTIMAL EAA BLEND: 5 grams of Essential Amino Acids per serving, with 60 servings per tub, showcased in a delicious and refreshing Apple and Kiwi flavour.
ESSENTIAL DIETARY ADDITION: A superior dietary protein substitute, EAAs are crucial as they are not synthesised by the body and must be obtained through the diet to ensure comprehensive nutritional support.
MUSCLE & STRENGTH BOOSTER: Designed to enhance muscle mass, strength, and endurance while reducing recovery times post-physical activity, aiding optimal athletic performance.
PURE & NATURAL: Free from fillers, stearates, dyes, and colourings, our formula is pure and excipient-free. Sweetened exclusively with Stevia for a natural and wholesome flavour experience.

Bulk Pure Essential Amino Acids Powder, 500 g, Packaging May Vary

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Why We Love It

Premium blend of 9 amino.
Essential for all diets.
Perfect for any workout.

Main Highlights

A premium blend of 9 essential amino acids in one easy-to-mix powder
Powered by at least 5.3 g leucine of Unflavoured per 15 g serving
Suitable for a vegetarian and vegan diet
Perfect for dedicated trainers pre, intra or post workout
Available in a range of delicious flavours, this is your perfect training partner

Longevity Box Amino Acids Powder 7000mg – Full-Spectrum BCAA & EAA Complex with Taurine – Vegan Essential Amino Blend – Wildberry Flavour – 30 Servings – 3rd Party Tested, 98% Pure

Why We Love It

Complete amino acid formula.
Boosts vitality and longevity.
Vegan-friendly and versatile.

Main Highlights

𝗖𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗘𝗔𝗔 + 𝗕𝗖𝗔𝗔 𝗙𝗼𝗿𝗺𝘂𝗹𝗮 𝗳𝗼𝗿 𝗘𝗻𝗲𝗿𝗴𝘆 & 𝗥𝗲𝗰𝗼𝘃𝗲𝗿𝘆 – Delivers 9 essential amino acids plus taurine to support energy production, muscle repair, and exercise recovery. Rapid absorption for fast, visible results.
𝗔𝗻𝘁𝗶-𝗔𝗴𝗶𝗻𝗴 𝗮𝗻𝗱 𝗠𝗲𝘁𝗮𝗯𝗼𝗹𝗶𝗰 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 – With BCAAs and taurine to combat oxidative stress, support metabolic health, and maintain muscle mass—ideal for healthy aging and high-performance lifestyles.
𝗩𝗲𝗴𝗮𝗻, 𝗩𝗲𝗿𝘀𝗮𝘁𝗶𝗹𝗲 & 𝗗𝗮𝗶𝗹𝘆 𝗨𝘀𝗲-𝗙𝗿𝗶𝗲𝗻𝗱𝗹𝘆 – Designed for both athletes and non-athletes, this clean amino acid powder helps fill nutritional gaps, improve protein utilization, and support recovery on rest days.
𝗧𝗵𝗶𝗿𝗱-𝗣𝗮𝗿𝘁𝘆 𝗧𝗲𝘀𝘁𝗲𝗱 𝗳𝗼𝗿 𝗦𝗮𝗳𝗲𝘁𝘆 & 𝗣𝘂𝗿𝗶𝘁𝘆 – 98% pure and independently lab-tested. Free from additives, preservatives, dyes, fillers, and heavy metals. Pure performance with clean ingredients.
𝟳𝟬𝟬-𝗗𝗮𝘆 𝗙𝗿𝗲𝘀𝗵𝗻𝗲𝘀𝘀 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲 – We guarantee lasting potency and purity for up to 700 days. Support your long-term vitality with a product designed for results you can trust.
𝗧𝗛𝗘 𝗟𝗢𝗡𝗚𝗘𝗩𝗜𝗧𝗬 𝗕𝗢𝗫 𝗔𝗗𝗩𝗔𝗡𝗧𝗔𝗚𝗘: Our mission is to help our customers live their healthiest, most vibrant, and longest lives. We are passionate about enhancing the healthspan of our customers, families, and ourselves. As a family-run business based in Dorset and Warwickshire, we love what we do and hope you will too!

Viridian - Balanced Amino Acid Complex - 90 Caps | Contains All 9 Essential Amino Acids, Balanced Ratio | Vegan and Kosher, 100% Active Ingredients | Nutritionist Formulated

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Why We Love It

High-quality amino acid blend.
Convenient vegetarian capsules.
Supports overall nutritional health.

Main Highlights

ESSENTIAL AMINO ACIDS: Our Amino Acid Complex provides all 9 essential amino acids, the building blocks of protein. These acids are crucial for muscle repair, growth, and overall body function, ensuring your body gets everything it needs for optimal performance.
FASTER ABSORPTION: This amino acid formula features an expertly balanced ratio of essential amino acids in their free-form state, allowing for faster absorption and more efficient use by the body, helping to support quicker recovery and improved strength.
VEGAN & KOSHER FRIENDLY: This amino acid supplement is designed for various diets, both vegan and kosher. It’s perfect for those looking to support their health with plant-based, ethical choices while avoiding animal products and by-products.
EXPERTLY FORMULATED: Made with 100% active ingredients, this amino acid complex contains no artificial fillers, GMOs, or palm oil. It adheres to strict ethical standards, ensuring a high-quality, responsible amino acid supplement for your health needs.
COMPLETE SATISFACTION: Every Viridian supplement is fully considered from the seed to the recycling bank with 130 quality checks. Our customer service team and qualified nutritionists are based in Northamptonshire and available to support you. Our range is also stocked in independent health stores across the country.

Nutripact Marine Collagen Powder with Hyaluronic Acid, Biotin, Vitamin C & B Vitamins 10,000mg Hydrolysed Collagen Peptides Types 1 & 3, Unflavoured, Odourless, Highly Bioavailable – 30 Servings, 300g

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Why We Love It

Promotes youthful, radiant skin.
Infused with essential vitamins.
Certified quality and purity.

Main Highlights

PRODUCT INFORMATION – Our best-selling premium quality Hydrolysed Marine Collagen Powder with Hyaluronic Acid and Essential Vitamins is a convenient high strength collagen powder, easily taken as a liquid drink collagen supplement. Our Naticol Collagen is water soluble, neutral in odour and taste. Research has shown that healthy collagen levels help skin hydration; support skin tone, radiance & structure, promoting healthy & young looking skin.
HIGH STRENGTH – Each serving of our collagen powder contains 10,000mg (10g) of Type 1 & 3 Hydrolysed Marine Collagen ( 9.3grams of protein), Hyaluronic Acid (25mg), Vitamin C (180mg), Biotin (200mcg) & over 100% NRV of all B Vitamins (B1,B2,B3,B5,B6,B7, B9 & B12).
PREMIUM QUALITY – We use Naticol Collagen Peptides. These are patent protected natural sustainably sourced wild fish collagen peptides, which offers the highest levels of purity, an outstanding nutritional amino acid profile and proven health benefits. Hydrolysed marine collagen is the type of collagen that has been used most extensively and successfully in research to show the health support effects of collagen on human skin, bone and tissue.
FREE FROM - Our Hydrolysed Marine Collagen powder contains no Salt, Starch, Wheat, Maize, Gluten, Soy, Lactose, Yeast, Dairy products, Artificial Preservatives, Artificial Colours or Genetically Modified Organisms (GMOs).
UK MADE - All our products are made in the UK and meet the GMP code of practice and ISO 9001 quality assurance certification. These manufacturing procedures ensure that the basic manufacturing practices and prerequisites necessary for product quality and safety are being followed.

Applied Nutrition BCAA Powder - Branched Chain Amino Acids BCAAs Supplement, Amino Hydrate Intra Workout & Recovery Energy Drink (450g - 32 Servings) (Lemon & Lime)

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Why We Love It

Boosts energy during workouts.
Ensures optimal muscle recovery.
Rapid and efficient absorption.

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.

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

Reflex Nutrition EAA - Complete Essential Amino Acids - 16g EAAs with BCAAs, Vitamin B6, Electrolytes - Full Spectrum Amino Acids Powder for Muscle Growth & Recovery (Watermelon, 500g, 20 servings)

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Why We Love It

Supports muscle growth effectively.
Includes all essential amino acids.
Faster absorption with added Piperine.

Main Highlights

Complete Amino Acid Supplements for Muscle Growth: Reflex EAA provides all 9 essential amino acids, including BCAAs, delivering 16g of EAAs per serving - This powerful blend improves lean body mass, helping to promote muscle growth and maintenance
Optimised Recovery and Reduced Fatigue: added Vitamin B6, Piperine (Black Pepper Extract), and Magnesium (Electrolyte) aid muscle function and tiredness reduction - BCAA's amino acid reduce muscle soreness after training to support your gym goals
Energy and Performance Boost: Reflex EAAs include all essential amino acids for energy and focus - This supplement can support your energy levels, helping you to push your limits during workouts and perform at your peak without relying on caffeine
No Caffeine, Complete Formula: designed with a complete EAA amino acid profile, Reflex essential amino acids powder caters to those sensitive to stimulants or who work out in the evening, providing key muscle growth support without disrupting sleep
Low Sugar, Easy-to-Mix: Reflex EAA powder contains minimal sugar and is made with natural colouring - Available in three flavours, it provides a refreshing, convenient amino acid nutritional supplements option without added sugars or artificial dyes

USN Complete Amino & EAA Intra Workout Powder, Apple Flavour - 400g, Vegan Energy Drink, Premium BCAA Amino Acids & Glutamine Recovery Drink, High Impact Pre Workout & Post Workout Shake

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Why We Love It

Optimized Amino Acids content.
Low sugar, high nutrition.
Vegan-friendly workout supplement.

Main Highlights

USN BCAA powder + Amino Acids: One serving of this Amino Acids powder contains 6,500mg of essential Amino Acids, for optimum nutrition, and 2,750mg of L-Leucine plus Vitamin B6 to support metabolism
Premium women's and men's supplements: USN diet supplements offer proven benefits, when taken alongside a balanced diet and healthy lifestyle. Always consult a healthcare professional first
Great tasting intra workout powder: Ideal for use around training sessions, giving vital Amino Acids to working muscles. Glutamine and BCAA in this refreshing recovery drink gives you that extra edge
Vegan supplement: 30 servings of tasty flavoured drink powder to support your bulk or workout. Contains BCAA, made with all vegan-friendly ingredients. Easy to mix and can be enjoyed at anytime of day
Ultimate Sports Nutrition: USN are at the forefront of sports nutrition research, making effective sports nutrition supplements for professional and non-professional athletes, pre or post workout

DY Nutrition HIT EAA Essential Amino Acids Complex with BCAAs, L-Lysine & Vitamin B6 | Muscle Repair & Recovery Supplement Intra Workout Powder, 27 Servings, 360g (Blood Orange)

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Why We Love It

Engineered for intense training benefits.
Pharma grade quality ensures efficacy.
Dorian Yates approved for excellence.

Main Highlights

Engineered for Intense Training: DY Nutrition HIT EAA is a unique formula containing all 9 Essential Amino Acids in optimal ratios to maximise your recovery, muscle repair and training performance. Each serving boasts an industry leading 13g of EAAs & BCAAs to fuel protein synthesis, tissue repair and nutrient absorption.
NOT A Normal EAA Powder: Not all EAA supplements are created equally, after all its not what you consume that matters most, its what your body can absorb! Aside from quality, EAAs require Vitamin B6 as a coenzyme for their metabolism and absorption. This is why each serving of HIT EAA boasts 1.2mg of Vitamin B6 to ensure maximum efficacy, absorption and performance.
Why EAAs? The importance of Essential Amino Acids isn’t just limited to muscle tissue growth and repair. In fact, they are critical to a whole host of processes in the body such as neurotransmission, glucose uptake into cells to boost energy levels, immune function, enzyme production and oxygen delivery via red blood cells. All of which can influence mood, wellbeing and energy levels.
Pharma Grade Quality: All DY Nutrition Supplements use premium quality ingredients and are manufactured to pharmaceutical grade quality standards. Every product we produce is batch tested and comes complete with a scratch-off authenticity checker on every label.
3 Delicious Easy Mix Flavours: Whether its Blood Orange, Cola or Bubble gum, every flavour of HIT EAAs has been specifically engineered for maximum performance, taste and mixability.

8.7

Excellent

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We scanned 1263 products

We reviewed these offers relevant to the Amino Acid Complex Powder 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 LOVE LIFE SUPPLEMENTS, Bulk, Longevity Box, Viridian, nutripact, Applied Nutrition, Solgar, Reflex, USN, DY Nutrition, 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 Acid Complex Powder in the market, we considered we took a deep dive into 6316 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 EAA Amino Acids Powder, All 9 Essential Amino Acids Including BCAA's and 2 Grams of Leucine per Serving, Apple & Kiwi Flavour, 348g - 60 Servings (5g of EAA's per Serving) - Love Life Supplements. We love many things about this product by LOVE LIFE SUPPLEMENTS. What sets it apart from the competition is Enhances muscle mass and strength, Promotes faster recovery post-activity. , Pure, natural, and nutritious blend.
The best value product for most shoppers and where user satisfaction is continuously the highest is Bulk Pure Essential Amino Acids Powder, 500 g, Packaging May Vary by Bulk based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Amino Acid Complex Powder and the best cost-to-value ratio is USN Complete Amino & EAA Intra Workout Powder, Apple Flavour - 400g, Vegan Energy Drink, Premium BCAA Amino Acids & Glutamine Recovery Drink, High Impact Pre Workout & Post Workout Shakeat USN with a 26% discount.
Our list of the best Amino Acid Complex Powder 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 Acid Complex Powder in The UK

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We scanned 1263 products

We concluded that: