EAA Protein Support | Lemon Flavor - 248g

You've been taking BCAAs. They're doing a third of the job.

Branched-chain amino acids of leucine, isoleucine and valine are the three essentials that directly stimulate muscle protein synthesis. They're well-studied, well-marketed, and in nearly every sports supplement on the market. The problem is that stimulating protein synthesis and completing it are two different things.

Your body needs all nine essential amino acids to build a protein chain. Leucine pulls the trigger, but if lysine, threonine, methionine, phenylalanine, tryptophan and histidine aren't available, synthesis stalls. You've activated the machinery and given it no material to work with.

This is the gap EAAs address and BCAAs alone don't.

What changed in this formula

If you've bought this product before, read this section. The formula has been rebuilt, not tweaked.

Every essential amino acid dose went up. Total EAA content per serving moved from 5,400mg to 7,000mg, an increase of roughly 30%. The serving itself went from 14g to 16.5g.

AAKG has been replaced with L-Citrulline at 1500mg. Both target the same pathway. Citrulline is the better tool for it: oral arginine and AAKG are heavily metabolised in the gut and liver before reaching circulation, while citrulline bypasses that route and raises plasma arginine more reliably at comparable doses.

Creatine moved from Creapure® to iCreatine®, and the dose increased from 2500mg to 3000mg. iCreatine® is a branded creatine monohydrate selected in part for water dispersibility, which matters in a flavoured powder that has to actually mix. The dose increase puts each serving squarely in the daily maintenance range used in creatine research.

Glycine has been reduced to 847mg. It remains in the formula for its role in creatine synthesis and collagen structure. The higher previous dose duplicated glycine you're already getting from magnesium bisglycinate, so it was rebalanced rather than stacked.

Three ingredients are new: Taurine at 750mg, AstraGin® at 50mg, and Vitamin B6 as Pyridoxal-5-Phosphate at 3.1mg.

The format changed from 30 sachets to a 248g jar of 15 servings, and the sweetener system moved from stevia and monk fruit to monk fruit juice extract with allulose.

On pack size and servings

This jar holds 15 servings where the old box held 30 sachets. Read that number on its own and it looks like less product. It isn't the number that matters.

Each serving is larger and substantially denser. You're getting 7,000mg of essential amino acids per serving instead of 5,400mg, plus 500mg more creatine, plus citrulline, taurine, AstraGin® and B6 that weren't there before. 

One jar is fifteen days of daily use. Two jars cover a month.

EAAs vs BCAAs vs whey and what you're actually getting

Why the label says 0g protein

Read the nutrition panel and you'll see Protein: 0.00g. That's accurate, and it's the single most misunderstood thing about EAA supplements.

Protein content on a nutrition panel is measured by nitrogen content and converted using a standard factor, a method built for intact protein chains. Free-form amino acids aren't chains. They're the individual units a protein would otherwise have to be broken down into, delivered pre-digested. The measurement method doesn't capture them, so the panel reads zero.

What you're actually getting per serving is 7,000mg of essential amino acids in a form your body can use immediately, without the digestion step. The panel number reflects the testing method, not the contents of the jar.

A note on how EAA protein equivalence works

Muscle protein synthesis runs in two phases. Initiation: leucine activates mTOR and signals the ribosome to start building. Elongation: the ribosome assembles the full chain, which requires all nine essential amino acids present in circulation simultaneously. If any one is missing, elongation stalls regardless of how much leucine triggered it.

This is why measuring an EAA formula in grams of protein alone misses the point. A complete EAA profile drives an MPS response disproportionate to its gram weight because there's no non-essential amino acid dilution. Whey protein is roughly 40–45% EAAs by composition. A complete EAA formula at the same essential amino acid content can drive a comparable stimulus at a fraction of the serving size. The question isn't how many grams. It's whether the profile can complete what leucine starts.

Five ingredients worth understanding specifically

L-Leucine — 2500mg · The mTOR trigger

Leucine is the primary activator of mTOR, the molecular switch that initiates muscle protein synthesis. At 2500mg it sits above the threshold consistently shown in research to activate this pathway meaningfully. Every EAA formula includes leucine. Not every formula includes it at a dose that does the job.

iCreatine® Creatine Monohydrate — 3000mg · ATP support

Creatine supports ATP regeneration during high-intensity output, strength and power output, and recovery between efforts. It is among the most thoroughly studied ingredients in sports nutrition. At 3000mg per serving this is a daily maintenance dose, not a loading protocol. iCreatine® was selected as a branded monohydrate with dispersibility suited to a flavoured drink.

L-Citrulline — 1500mg · Nitric oxide pathway

Citrulline is converted to arginine in the kidneys, which the body uses to produce nitric oxide. Nitric oxide dilates blood vessels, supporting blood flow and oxygen delivery to muscle tissue during exercise, and the delivery of amino acids and creatine to working muscle. Citrulline is used here in place of arginine or AAKG because it survives first-pass metabolism and raises circulating arginine more effectively.

Taurine — 750mg · Cellular hydration and osmoregulation

Taurine is a conditionally essential amino acid involved in cellular hydration, osmoregulation and antioxidant defence. It is one of the most abundant free amino acids in skeletal muscle and is commonly included in performance formulas alongside creatine, which also draws water into muscle cells.

AstraGin® — 50mg · Absorption support

A branded extract of Astragalus membranaceus and Panax notoginseng, included at its standard 50mg dose. AstraGin® is used in formulas where the goal is to improve uptake of the actives alongside it. It carries a body of preclinical work and a small number of human trials.

Complete amino acid profile per serving

Other ingredients: natural lemon flavour, citric acid, malic acid, monk fruit juice extract, allulose (Allupure™).

Who this is built for

Athletes and active adults for performance and recovery

• Leucine at 2500mg meets the threshold for meaningful mTOR activation
• Creatine at 3000mg supports ATP regeneration, strength, power and sprint capacity
• Citrulline supports nitric oxide production for blood flow and oxygen delivery to working muscle
• Histidine, as a carnosine precursor, buffers lactic acid accumulation during high-intensity output
• Taurine supports cellular hydration alongside creatine

Vegetarians, vegans and low-protein diets

• Plant-based diets are consistently low in leucine, lysine and methionine — the three essentials most limiting in plant proteins
• Delivers the complete essential spectrum without dairy, soy or animal-derived protein
• B6 supports the metabolism of the amino acid load

Adults over 45 for muscle preservation and connective tissue

• Age-related muscle loss accelerates from the mid-40s and is linked to inadequate leucine and essential amino acid intake
• Lysine and glycine contribute to collagen synthesis and connective tissue structure
• Creatine is consistently shown to support muscle strength and function in older adults

Recovery 

• Essential amino acids are an efficient substrate for tissue repair, requiring no digestive conversion
• Absorbs rapidly without food and places minimal load on digestion

Fifteen ingredients. Every one of them functional.

No magnesium stearate. No silicon dioxide. No artificial colours. No sucralose. No acesulfame-K. No stevia. No soy. No dairy. No gluten. No maltodextrin.

Sweetened with monk fruit juice extract and allulose. Stevia was removed deliberately — it carries an aftertaste that fights the amino acid base. Allulose is a rare sugar that behaves like sugar on the palate without the glycaemic load, and pairs with monk fruit for a cleaner finish. Citric and malic acid are included for pH balance and flavour, not as fillers.

All amino acids are fermentation-derived. GMP certified. Third-party lab tested.

How to use

Mix one and half scoop (16.5g) into 250–300ml of cold water, stir and consume immediately. Best taken 20–30 minutes before training, or immediately after, or as directed by your healthcare practitioner.

On non-training days: any time of day, on an empty stomach or between meals. EAAs absorb rapidly without food and require no digestive load.

On creatine: at 3000mg per serving, creatine here is dosed for daily maintenance rather than a loading protocol. If you're using higher creatine doses under practitioner guidance, this contributes to your total daily intake.

Stacks well with: iThrive Magnesium Bisglycinate as magnesium supports muscle function and ATP production, with strong synergy with creatine. iThrive Active B-Complex for broader B-vitamin cofactor support for amino acid metabolism. iThrive Zinc Defense as zinc supports muscle protein metabolism.

Practitioner’s Note

"In our practitioner curriculum, the amino acid conversation almost always starts in the wrong place. Students come in knowing BCAAs - leucine, isoleucine, valine. What takes time to internalize is that BCAAs are a signal, not a substrate. Leucine activates mTOR. But mTOR activation without the remaining six essential amino acids available in circulation is like pressing the start button on a machine with no raw material loaded. The synthesis process initiates and then stalls. This is why the clients who come to us after years of BCAA supplementation often show no meaningful change in lean mass or recovery markers as the signal is there, the supply isn't. The EAA formula addresses this directly. But what I find most clinically interesting about this specific formulation is the glycine dose. Most practitioners I train don't think of glycine as a performance ingredient. In practice, it's one of the most versatile amino acids in the formula." Shagun Arya iARC Faculty, iThrive