EAA
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EAA supplements — short for essential amino acids — give you all nine amino acids your body can't produce on its own. Unlike BCAAs, which cover just three, an EAA supplement covers the full picture: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These nine have to come from your diet or supplementation — there's no other way to get them. The range here spans powders and tablets, so whether you want something you can sip during a session or a convenient on-the-go option, there's a format that fits.
Every EAA product in this range is developed by Myprotein's expert nutritionists, with formulations that are straightforward and properly dosed. From unflavoured options to flavoured powders designed to be mixed into water, the range is built around flexibility — so your EAA routine works around your training, not the other way around.
Who EAA Are For
EAA supplements are a staple for anyone doing regular resistance or endurance training who wants to make sure their amino acid intake is covered — particularly around training when whole food sources aren't practical. Protein contributes to the growth and maintenance of muscle mass1, and amino acids are the building blocks that make up protein. Getting all nine essential amino acids in — not just the three covered by BCAAs — means nothing's left out.
They're also a practical choice for anyone eating a plant-based or lower-protein diet, where hitting the full spectrum of essential amino acids through food alone can be harder to manage. Athletes, gym-goers, and anyone with an active lifestyle who wants a light, mixable supplement they can take without the calorie load of a full protein shake will find EAAs a useful addition to their stack.
When to Use EAA
The most popular time to take an EAA supplement is during training — sipped throughout your session as an intra-workout drink. At this point you want something light and fast-absorbing, and EAA powders mixed with water fit that window well. Some formulations, like Origin Intra-Workout, pair EAAs with a fast-absorbing carbohydrate source to cover both amino acid and energy demands during longer or more demanding sessions.
EAAs can also be taken pre-workout or post-workout depending on your preference and schedule. Tablet formats offer a no-fuss alternative if you're training somewhere that makes mixing a powder inconvenient — take them with water and you're covered. The key is consistency: fitting EAA intake around training in whatever format suits your routine.
EAA Benefits
The Complete Nine
EAA supplements deliver all nine essential amino acids in a single serving — something BCAAs alone don't do. Amino acids are the structural units of protein, and protein contributes to the growth and maintenance of muscle mass1. Getting the full set means your body has everything it needs from a supplementation perspective, with nothing missing from the lineup.
Light and Versatile
Unlike a full protein shake, EAA powders are typically low in calories and mix easily into water — making them practical to take before, during, or after training without feeling heavy. The range includes both flavoured powders and unflavoured options, giving you flexibility over how and when you use them.
Multiple Formats
Whether you prefer a powder you can sip throughout your session or tablets you can take without any preparation, the range has you covered. Impact EAA Tablets are a particularly convenient option for training on the go, while powders like Impact EAA and Origin Intra-Workout are built for those who prefer a drink-format supplement.
Informed Choice Certified
Impact EAA carries Informed Choice certification, meaning every batch is tested for banned substances. For anyone who competes or simply wants confidence in what they're taking, that third-party verification matters.
Popular Picks
Impact EAA — Informed Choice certified and built around all 9 essential amino acids in a 4:1:1 BCAA ratio, Impact EAA is the trusted choice for those who train seriously and care about what's in their supplement.
Impact EAA Tablets — Impact EAA Tablets deliver all 9 essential amino acids — including a 4:1:1 BCAA ratio — with a faster absorption rate than whey, because free amino acids skip digestion entirely.
Origin Intra-Workout — Built for those who train hard and long, Origin Intra-Workout combines 30g of fast-absorbing cyclic dextrin with 9g of essential amino acids and magnesium, which contributes to a reduction in tiredness and fatigue.
FAQs
What are EAAs?
EAAs are essential amino acids — the nine amino acids your body cannot synthesise on its own and must obtain through diet or supplementation. They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Amino acids are the building blocks of protein, and protein contributes to the growth and maintenance of muscle mass1. An EAA supplement delivers all nine in one serving, making it a comprehensive amino acid source.
What's the difference between EAAs and BCAAs?
BCAAs — branched-chain amino acids — are three of the nine essential amino acids: leucine, isoleucine, and valine. An EAA supplement includes those three plus the remaining six essential amino acids. If you're already taking BCAAs, you're only covering part of the essential amino acid spectrum. EAAs give you the complete set, which is why many athletes choose an EAA supplement over a standalone BCAA product.
What EAA supplements are available?
The range includes five products spanning two formats. On the powder side, there's Impact EAA, Origin Intra-Workout, THE EAA Essential Amino Acid and Electrolyte Powder, and Collagen Protein Powder. For those who prefer a tablet format, Impact EAA Tablets deliver all nine essential amino acids including a 4:1:1 BCAA ratio in a no-mix, portable option.
Which EAA supplement should I choose?
Origin Intra-Workout is worth considering if you want an EAA supplement built specifically for use during training — it combines 9g of essential amino acids with 30g of cyclic dextrin, a fast-absorbing carbohydrate source, making it well-suited to longer or more demanding sessions. If you want a straightforward EAA powder with Informed Choice certification, Impact EAA is the go-to. Prefer something that needs no mixing? Impact EAA Tablets are the practical choice.
When should I take an EAA supplement?
EAA powders are commonly taken during training as an intra-workout drink — mixed with water and sipped throughout a session. They can also be taken before or after training depending on your routine. Tablet formats can be taken at any of these times with water, and are particularly useful when preparing a drink isn't practical.
Are EAA supplements suitable for plant-based diets?
EAA supplements are a practical option for anyone following a plant-based or lower-protein diet, where getting the full range of essential amino acids through food alone can be challenging. Check individual product pages for full ingredient and allergen information to confirm a specific product suits your dietary requirements.
Are EAA products at Myprotein tested for banned substances?
Impact EAA is Informed Choice certified, meaning every production batch is tested by an accredited third-party laboratory for substances banned in sport. This certification gives athletes and competitors confidence in what they're putting into their body. If third-party testing is a priority for you, Impact EAA is the clear choice within this range.
Who develops the EAA range?
Myprotein's expert nutritionists develop every product in the EAA range. Formulations are built around clear nutritional rationale — covering the full spectrum of essential amino acids, in formats and dosages that work for real training schedules.
Can I take EAAs alongside other supplements?
EAA supplements are commonly used alongside protein powders, creatine, and pre-workout formulas. Because EAA powders are typically low in calories and easy to mix, they stack practically with other products without adding significant bulk to your routine. Always check individual product labels for serving guidance.
What formats do EAA supplements come in?
EAA supplements in this range come in two formats: powders and tablets. Powders are designed to be mixed with water and consumed as a drink, with flavoured options available across the range. Tablets — specifically Impact EAA Tablets — offer a convenient alternative that requires no mixing or preparation, making them easy to take before, during, or after training wherever you are.
1. Protein contributes to the growth and maintenance of muscle mass.