EAA Supplements
Shop EAA Supplements at Myprotein
Essential amino acids are the nine amino acids your body can't make on its own — meaning they have to come from what you eat or drink. EAA supplements deliver all nine in one hit, making them a straightforward way to top up your intake around training or throughout the day. Whether you're lifting, running, or just keeping active, having a complete amino acid profile in your corner means you're not leaving gaps in your nutrition.
The range here covers everything from straightforward EAA powders to formulas that combine amino acids with electrolytes for added versatility. Flavours, formats, and certifications vary across the lineup, so there's something whether you want a no-frills option or something a bit more feature-packed.
Who EAA Supplements Are For
EAA supplements are a go-to for anyone focused on getting enough protein-building blocks through their day — particularly those training hard or following a diet where complete protein sources aren't always guaranteed. Athletes, gym-goers, and active individuals often reach for an EAA powder as a convenient, mixable option that fits around a busy schedule.
They're also popular with people following plant-based or lower-calorie diets, where hitting a full spectrum of essential amino acids from food alone can take more planning. An EAA supplement takes that guesswork away, delivering all nine essentials in a single serving without a heavy calorie load.
When to Use EAA Supplements
Many people take EAA supplements during training — mixed into a water bottle and sipped throughout a session. This makes them easy to fit into your workout routine without needing a separate pre- or post-workout window. Formulas that include electrolytes are particularly well-suited to this approach, since they cover hydration at the same time.
Outside of training, EAA powders work just as well between meals or first thing in the morning, especially on days when your protein intake from food is lower than usual. The powdered format means they mix quickly and are easy to take anywhere — no prep, no fuss.
EAA Supplements Benefits
All Nine Essential Amino Acids in One
Unlike BCAA supplements, which only cover three of the nine essential amino acids, a full EAA formula delivers the complete set. Amino acids are the building blocks of protein, and protein contributes to the growth and maintenance of muscle mass1. Getting all nine from one source keeps your intake simple and comprehensive.
A Versatile Format for Any Routine
EAA powders dissolve easily in water, making them one of the more flexible supplements to work into your day. Sip them during a session, mix them into your morning drink, or keep a shaker in your bag for whenever you need it. The format adapts to your schedule, not the other way around.
Options with Electrolyte Support
Some EAA supplements in the range pair amino acids with electrolytes — a combination that covers both your amino acid intake and fluid balance in one drink. For anyone training in warm conditions or putting in longer sessions, having both in a single formula means one less thing to think about.
Developed by Nutrition Experts
Every EAA supplement in the range is developed by Myprotein's expert nutritionists, with formulation, dosing, and quality all taken care of. Options like Impact EAA carry Informed Choice certification, giving you added confidence in exactly what's in every scoop.
Popular Picks
Impact EAA — Impact EAA delivers all 9 essential amino acids in a 4:1:1 BCAA ratio, and it's Informed Choice certified for anyone who needs to train with confidence in what they're taking.
THE EAA | Essential Amino Acid & Electrolyte Powder — THE EAA combines 7g of Amino9® with 306mg of electrolytes and 2.9g of leucine per serving, making it the pick for those who want amino acids and rehydration sorted in one go.
FAQs
What are essential amino acids?
Essential amino acids (EAAs) are the nine amino acids — histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine — that the body cannot produce on its own. They must come from food or supplementation. Amino acids are the building blocks of protein, and protein contributes to the growth and maintenance of muscle mass1.
What's the difference between EAA and BCAA supplements?
EAA supplements contain all nine essential amino acids, while BCAA supplements only contain three — leucine, isoleucine, and valine. BCAAs are a subset of EAAs, so an EAA formula gives you the full picture. If you're looking for complete amino acid coverage from a single supplement, an EAA product covers more ground.
Which EAA supplement should I choose?
It depends on what you want from the formula. If third-party testing matters to you, Impact EAA is Informed Choice certified and covers all nine essential amino acids. If you'd also like electrolyte support alongside your amino acids, THE EAA delivers 7g of Amino9® alongside 306mg of electrolytes — making it a strong choice for training sessions where hydration is a factor.
When's the best time to take an EAA supplement?
EAA supplements are commonly taken during training, mixed into a water bottle and sipped throughout a session. They also work well between meals or first thing in the morning to fill any gaps in your amino acid intake for the day. The powder format means timing is flexible — use them whenever it fits your routine.
Can I take EAA supplements on rest days?
Yes — EAA supplements aren't limited to training days. Many people include them on rest days as part of their overall protein and amino acid intake strategy, particularly when food intake is lighter. They work just as well mixed into water throughout the day as they do around a session.
Do EAA supplements contain electrolytes?
Not all of them — it depends on the formula. THE EAA includes 306mg of electrolytes per serving alongside its amino acid content, making it a dual-purpose option for training and rehydration. Impact EAA focuses on the amino acid profile without electrolytes, so you can choose based on what you need from the product.
Are these EAA supplements suitable for vegans?
Suitability varies by product, so it's worth checking the individual product page for ingredient and allergen details. The product listings include full ingredient breakdowns, which will confirm whether a particular EAA supplement fits a vegan or plant-based diet.
Are Myprotein EAA supplements third-party tested?
Impact EAA carries Informed Choice certification, meaning it's been independently batch-tested for substances banned in sport. This makes it a solid option for athletes who compete under anti-doping regulations and want confidence in what they're taking. Check individual product pages for certification details on other products in the range.
Who develops Myprotein's EAA supplements?
Myprotein's EAA supplements are developed by Myprotein's expert nutritionists. From formula design through to dosing and quality standards, the products are built with both performance and practicality in mind.
How do EAA supplements differ from protein powders?
Protein powders — like whey or plant protein — are whole protein sources that your body breaks down into amino acids after consumption. EAA supplements deliver the amino acids directly, without the additional calories or macros that come with a full protein powder. Many people use both: protein powders for higher-calorie meals and EAAs as a lighter option around training.
1. Protein contributes to the growth and maintenance of muscle mass.