10 Best Amino Acid Complex Supplements in The UK

Last updated on 10/08/2025

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High Strength Fulvic Acid Liquid 50ml – Humic Mineral Complex for Gut Health, Detox & Cleanse Support – 33 Organic Amino Acids, GMO & Chemical-Free for Humans – Naturesupplies

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Why We Love It

High-strength daily wellness support.
Natural detox for overall wellness.
Promotes balanced gut health.

Main Highlights

High-Strength Fulvic Acid for Daily Wellness: Discover the power of our high-strength fulvic acid liquid, packed with essential humic minerals and 33 organic amino acids for comprehensive daily support
Natural Source of Shilajit-Derived Minerals: Fulvic minerals, typically found in shilajit, are concentrated here to deliver the benefits of ancient, mineral-rich compounds that support detox and overall wellness
Gut Health for Balanced Digestion: Our fulvic acid liquid promotes gut health by assisting with nutrient absorption and balanced digestion, contributing to enhanced daily energy and comfort
Pure, GMO & Chemical-Free Formula: Crafted with only the finest ingredients, this fulvic acid is free from GMOs and chemicals, providing safe, natural support for humans without compromise
Premium Quality by Naturesupplies: Trust in Naturesupplies for a high-quality, rigorously tested supplement that brings ancient minerals and modern wellness together for your health goals

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.

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.

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

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

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.

Now Foods, Amino Complete (Amino Acid Blend), 120 Capsules, with BCAA, Gluten Free, Vegetarian, Non-GMO

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Why We Love It

High dosage for daily use.
Superior bioavailability for vegetarians.
High quality, tested product.

Main Highlights

HIGH-DOSAGE: One dose, four capsules, Amino Complete from Now Foods contains vitamin B6, essential and non-essential amino acids that you can feed your body every day
GOOD BIOAVAILABILITY: Now Foods Amino Complete is characterised by good bioavailability and is suitable for a vegetarian diet
HIGH QUALITY: Now Foods amino acid capsules are tested for quality and purity in independent laboratories
WITHOUT UNWANTED ADDITIVES: The amino acid capsules from Now Foods are gluten-free and produced without genetic engineering
IMPORTANT NUTRIENTS: Amino Complete by Now Foods contains vitamin B6, essential and non-essential amino acids; important nutrients involved in many processes in the human body

Humiplex™ - Humic Multi-Nutrient Complex - Minerals, Trace Elements, Amino Acids, Probiotics & Prebiotics - pH Balance, Detox & Digestion - UK Made - Zero Additives - Vegan (120 Count (Pack of 1))

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Why We Love It

Supports gut health and immunity.
Enhances nutrient absorption effectively.
Plant a tree with every order.

Main Highlights

WHAT IS HUMIPLEX?: Powered by Cellular Infusion Technology and its patented process, Humiplex is an all-natural, plant-based complex delivering humic acid and trace minerals in a potent and effective manner. Humiplex is made from mineral-rich humic substances, or “humates”, that were formed from vegetation compressed into the Earth millions of years ago. Humiplex comes from unique mineraloid veins in the North of America.
✔️SUPPORTS GUT HEALTH AND IMMUNITY. Humic acid promotes the growth of beneficial gut bacteria, acting as a prebiotic, which can support overall gut health. It helps to maintain a healthy balance of microorganisms in the digestive system. Through this interaction with the gut microbiome, humic acid can help to boost the immune system.
✔️ENHANCED NUTRIENT ABSORPTION & DETOXIFYING. Powerful compounds within Humiplex improves the transport of nutrients (such as vitamins and minerals) into cells, boosting overall nutrition at the cellular level. This is why it’s considered a powerful delivery mechanism for the 65+ trace minerals in Humiplex. In addition, Humiplex acts as a natural chelator, meaning it binds with hard to remove metals and toxins, helping to transport them out of cells and removing them from the body. Is also has powerful antioxidant properties, helping to neutralise free radicals that can cause oxidative stress and damage cells.
✔️UK MADE TO HIGH QUALITY GMP STANDARDS. Humiplex is manufactured in the UK to GMP standards, ensuring the highest quality.
✔️OVER 100,000 TREES PLANTED AND COUNTING. We are proud supporters of Ecologi’s reforestation projects and plant a tree with every single order!
Please note: packaging may vary.

Positive Science People

Vegan Collagen Complex for Men & Women - Supports Hair, Skin, Nails & Joints - Plant Collagen Capsules with 18 Amino Acids, Hyaluronic Acid, Bamboo Silica & Biotin - 30 Day Supply

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Why We Love It

Superior vegan collagen formula.
Highly absorbable, human-aligned amino acids.
Trustworthy, ethically produced product.

Main Highlights

Marie Claire Skincare Awards Winner: Collavegan won Best Collagen Product at the Marie Claire Skincare Awards. Dr. David Jack praised it as "a great alternative to animal collagen with a similar amino acid profile and added antioxidants." Dr. Ewoma Ukeleghe noted its benefits for hydration and elasticity.
100% Plant based: Collavegan is a 100% vegan alternative to animal collagen, sourced from non-GMO corn. Unlike animal-based options, our plant-powered formula is easy on the planet and your body, with all the benefits of pure collagen without the ethical concerns.
Bioavailable & effective: Our vegan collagen capsules isolate amino acids for easy absorption, ensuring your body gets the full benefit with no waste. This means your skin, hair, nails, and joints receive more of the good stuff faster and more efficiently than with animal-derived collagen.
Holistic beauty boost: Collavegan does more than just replace collagen. It’s a holistic, multi-ingredient powerhouse, packed with Hyaluronic Acid, Bamboo Silica, Biotin and Vitamins E & C to enhance hydration, elasticity, and overall vitality, giving your body the tools it needs for a glowing, youthful look.
Quality you can trust: Our vegan collagen supplements are UK-made under GMP standards, 100% vegan, non-GMO and allergen-free. You won’t find hidden fillers, unnecessary chemicals, or vague ingredient sourcing here.

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

8.7

Excellent

We scanned 529 products

We reviewed these offers relevant to the Amino Acid Complex 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 naturesupplies, LOVE LIFE SUPPLEMENTS, Viridian, Solgar, swiss bioenergetics, Applied Nutrition, NOW, Time Health, Positive Science People, Reflex, 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 Supplements in the market, we considered we took a deep dive into 2646 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 High Strength Fulvic Acid Liquid 50ml – Humic Mineral Complex for Gut Health, Detox & Cleanse Support – 33 Organic Amino Acids, GMO & Chemical-Free for Humans – Naturesupplies. We love many things about this product by naturesupplies. What sets it apart from the competition is High-strength daily wellness support. , Natural detox for overall wellness. , Promotes balanced gut health. .
The best value product for most shoppers and where user satisfaction is continuously the highest is 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 by LOVE LIFE SUPPLEMENTS based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Amino Acid Complex Supplements and the best cost-to-value ratio is 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)at Reflex with a % discount.
Our list of the best Amino Acid Complex 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 Acid Complex Supplements in The UK

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We scanned 529 products

We concluded that: