Amino acids are the building blocks of protein. Nine of them are "essential," meaning your body can't produce them and you have to get them from food or supplements. The other eleven are "non-essential," meaning your body can synthesise them from other compounds. Whether a protein source is "complete" depends on whether it contains all nine essentials in meaningful amounts.
What Are BCAAs?
Branched-chain amino acids are three of the nine essentials: leucine, isoleucine and valine. They earned their own supplement category because leucine specifically is a potent trigger for muscle protein synthesis, which made BCAA products popular long before the rest of the essential amino acid picture caught up in the research.
What Are EAAs?
Essential amino acid complexes contain all nine essentials, the three BCAAs plus phenylalanine, lysine, histidine, threonine, methionine and tryptophan. Beast EAA includes all nine, with leucine, isoleucine and valine delivered in a 2:1:1 ratio, alongside taurine and Senactiv® for cellular recovery support.
Why EAAs Are the More Complete Choice
Muscle protein synthesis requires all nine essential amino acids to be present, not just the three BCAAs. Leucine can trigger the initial signal (via the mTOR pathway), but without the other six essentials available, the body can't actually build new muscle tissue from that signal. Research comparing BCAA-only supplementation to EAA supplementation has found BCAAs alone are less effective at stimulating muscle protein synthesis than a complete EAA profile.1
When You Actually Need Either
If you're already hitting your daily protein target from whole food and a quality protein powder, you likely don't need additional EAAs or BCAAs on top, your amino acid needs are already covered. Where they earn a place is training fasted, training for extended periods, or wanting a fast-absorbing, easily sippable amino source during a session without the fuller macros of a protein shake.
Common Myths
"BCAAs alone build muscle." The research has largely moved past this. A complete essential amino acid profile outperforms BCAAs alone for muscle protein synthesis.
"You need EAAs mid-workout or they don't work." Total daily intake and consistency matter more than precise timing. Mid-workout is convenient, not mandatory.
"If you eat enough protein, amino acid supplements are useless." Broadly true for muscle-building purposes, but a fast-absorbing amino source still has a role for fasted training or long sessions, it's a convenience and timing tool as much as a raw nutrition one.
EAA vs BCAA FAQs
Eddie's take: "I stopped bothering with plain BCAAs years ago. If you're going to sip aminos through a session, get the full picture, not a third of it."
All nine. Every session.
Beast Pharm EAA delivers a complete essential amino acid complex with all nine EAAs, including 3g Leucine, 1.5g Isoleucine, and 1.5g Valine at the precision ratio designed to activate mTOR, your body's primary signal for muscle protein synthesis.† Alongside 1g Taurine, Senactiv® for cellular recovery, and a full B-vitamin matrix (B3, B6, B12).††
If you're training without an EAA, you're leaving recovery on the table. Your muscles are breaking down while you work. EAA keeps amino acid availability high throughout your session: reducing catabolism, driving synthesis, keeping you in a position to grow.
†Protein contributes to the growth and maintenance of muscle mass. ††Vitamin B12 contributes to normal energy-yielding metabolism.
Directions
Mix 1 scoop (12g) with at least 350ml of water to desired taste.For greater accuracy, use scales.Consume 1 serving before, during or after exercise. Do not exceed more than 2 servings in any 24 hour period.
Store in a cool, dry place.
† Vitamin B12 contributes to normal energy-yieldingmetabolism.
†† Protein contributes to the growth and maintenanceof muscle mass.
Ingredients
Strawberry Kiwi, Beastberry, Cranberry, Sour Cherry:
EAA Blend (L-Leucine, L-Isoleucine, L-Valine,L-Phenylalanine, L-Lysine, L-Histidine, L-Threonine,L-Methionine, L-Tryptophan), Acidity Regulator (MalicAcid, Citric Acid), Taurine, Flavouring, Sweetener(Sucralose), Natural Colouring (Red Beetroot), Salt,Panax notoginseng (NF-05) and Rosa roxburghii(NF-04) (as Senactiv®), Vitamin B12 Preparation(Maltodextrin, Cyanocobalamin), Vitamin B3(Nicotinamide), Vitamin B6 (Pyridoxine Hydrochloride).
Lemon Sherbet:
EAA Blend (L-Leucine, L-Isoleucine, L-Valine,L-Phenylalanine, L-Lysine, L-Histidine, L-Threonine,L-Methionine, L-Tryptophan), Acidity Regulator (MalicAcid, Citric Acid), Taurine, Flavouring, Sweetener(Sucralose), Natural Colouring (Beta Carotene), Salt,Panax notoginseng (NF-05) and Rosa roxburghii(NF-04) (as Senactiv®), Vitamin B12 Preparation(Maltodextrin, Cyanocobalamin), Vitamin B3(Nicotinamide), Vitamin B6 (Pyridoxine Hydrochloride).
NET WT. 360g No artificial colours.
Warnings
Please consult your physician prior to use (especially if you have a medical condition). Not recommended for anyone under the age of 18. Do not take this product if you are pregnant or breast feeding. If you are taking any medication consult your doctor before taking this product. Do not exceed the suggested use. Keep out of the reach of children. This product is not intended to diagnose, treat, cure, or prevent any disease or illness. Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle.
Allergens
For allergens, see ingredients in bold.Produced in a facility that handles Milk, Soy, Egg and Gluten.Suitable for Vegetarians and Vegans.
Delivery
All UK orders are shipped using a 1-2 working day service.
Free Tracked 24 shipping is available on all orders over £25, for orders under £25 shipping is charged at £4.99
Orders placed before 1pm on weekdays are shipped the same day.
Orders placed at weekends and bank holidays will be processed on the next working day.
Europe - Please allow 5 - 10 business days for delivery. Orders under 150 EUR - including shipping costs - will not incur any customs or VAT charges.
Rest of the World - Please allow 7 - 14 business days for delivery.
DHL EXPRESS WORLDWIDE - 1 - 3 business days.
All orders are shipped tracked - a tracking link will be provided in your shipping confirmation email.
Additional Charges
Customers may incur VAT charges and Customs Duty specific to their country. The buyer assumes responsibility for any importation costs. If customs and duty fees imposed by your country are not paid, we cannot accept responsibility for the items. It is essential to familiarize yourself with your country's regulations regarding the importation of goods. If an item is confiscated due to regulations, we are not liable, and any resulting charges will be the customer's responsibility. For information regarding return shipping costs, please refer to our Refund Policy.
Jackman, S. R., Witard, O. C., Philp, A., Wallis, G. A., Baar, K., & Tipton, K. D. (2017). Branched-chain amino acid ingestion stimulates muscle myofibrillar protein synthesis following resistance exercise in humans. Frontiers in Physiology, 8, 390. https://doi.org/10.3389/fphys.2017.00390
This article is for informational purposes and is not medical advice. Consult a healthcare professional before starting any new supplement, particularly if you have an existing health condition, are pregnant or breastfeeding, or are under 18.
