Description
I Prevail Amino Impact
Amino Impact delivers 10 grams of essential amino acids per scoop — all nine of them — plus 2g of glutamine and electrolytes. Thirty servings per tub.
That is a genuinely serious amino profile at a value price, and the label has one detail that explains exactly why it tastes the way it does.
The full amino breakdown
| IBCAA 2:1:1 | 4,500mg |
| Instantized L-Leucine | 2,500mg (additional) |
| L-Glutamine | 2,000mg |
| L-Lysine | 1,500mg |
| L-Threonine | 500mg |
| L-Phenylalanine | 400mg |
| L-Tryptophan | 300mg |
| L-Histidine | 200mg |
| L-Methionine | 100mg |
Totals: 7,000mg of BCAAs, 3,000mg of the other six essential aminos, 10,000mg of EAAs, plus 2,000mg glutamine. Twelve grams of amino acids per scoop.
All nine essential amino acids are present, which is the thing that matters. A BCAA-only product supplies three of nine — leucine triggers the signal to build muscle protein, but without the other six the signal has nothing to work with. This covers all of them.
The leucine load is the standout number
This is worth pulling out, because it is unusual.
The 2:1:1 BCAA blend contributes roughly 2,250mg of leucine. Then there is a further 2,500mg of instantized leucine added on top, bringing the total to around 4,750mg of leucine per scoop.
Leucine is the amino acid that switches on muscle protein synthesis via the mTOR pathway, and research points to roughly 3 grams as the threshold for a maximal response. At around 4.75g, this clears that threshold comfortably — more leucine than many whey proteins deliver in a full serving.
The trade is that the profile is leucine-dominant. The other six essential aminos total 3,000mg between them, with methionine at 100mg being the smallest. Their purpose is completeness rather than individual dosing — all nine present so nothing limits the process — but if you are reading the panel and wondering why some numbers are small, that is why.
"Bitter Blocker" — this is why it tastes good
Look at the other ingredients and you will find Bitter Blocker listed alongside the flavour system.
Free-form amino acids are genuinely, chemically bitter — and leucine is among the worst of them. A formula carrying 4,750mg of leucine has a serious flavour problem to solve, which is exactly why so many amino products taste medicinal.
A bitter blocker is a compound that binds to or suppresses bitter taste receptors on the tongue. Combined with malic and citric acid for tartness, that is the specific reason this drinks well at a leucine dose that would otherwise be hard to swallow.
Your note says it tastes good. That is on the label, deliberately.
Electrolytes and B vitamins
| Sodium (as sodium chloride) | 100mg |
| Potassium (as potassium citrate) | 100mg |
| Vitamin B6 (pyridoxine HCl) | 25mg |
| Vitamin B12 (cyanocobalamin) | 500mcg |
B6 and B12 are cofactors in amino acid metabolism, so they are doing real work here rather than padding the panel.
An honest note on the electrolytes: 100mg of sodium and 100mg of potassium is meaningful hydration support, but it is a modest load. A typical sports drink carries around 110mg of sodium per 8oz serving. If you are training long in heat and sweating heavily, you will want more sodium than this provides — from food, a dedicated electrolyte product, or simply salting your meals. For a normal indoor session it is fine.
Amino Impact or Intra Blast?
Now that we have both labels, this is a clean comparison.
| Amino Impact | Intra Blast | |
| Total EAAs | 10g | 10g+ |
| BCAAs | 7g | 7.2g |
| Leucine | ~4.75g | Standard 2:1:1 share |
| Glutamine | 2g | 5g |
| Betaine | None | 2g |
| Electrolyte load | 200mg total | 2,822mg matrix |
| Price | Value | Premium |
The amino profiles are remarkably close — both land at roughly 10g of EAAs with about 7g of BCAAs. Amino Impact actually carries more leucine.
Where Intra Blast pulls ahead is everything around the aminos: more than double the glutamine, 2g of betaine for strength and endurance, ornithine, and a substantially larger electrolyte matrix.
So: if you want the amino acids, Amino Impact gets you there for less. If you want the hydration and performance extras — particularly for long or hot sessions — Intra Blast is the fuller product and priced accordingly.
How to use it
- One scoop (17.5g) sipped through your session. Plenty of water.
- Expect foaming. Amino acids act as surfactants. Stir rather than shake, or let it settle a minute.
- Also useful on rest days when dieting or fasting, since 4.75g of leucine triggers muscle protein synthesis even without a full meal.
- Add salt separately for long, hot sessions. The 100mg of sodium here is modest.
- Check your B6 total if you also take a multivitamin and a pre-workout. 25mg is well within safe limits, but B6 accumulates across products and very high sustained intakes are worth avoiding.
Who this is for
- Anyone who wants a full 10g EAA dose without paying premium prices
- People training fasted, where the 4.75g leucine load genuinely matters
- Anyone in a deficit protecting muscle when protein intake is low
- People who have abandoned amino products because they tasted medicinal
- Anyone still buying BCAAs who did not know EAAs supersede them
Who this is not for
If you eat well and train for 45 minutes, you probably do not need an intra-workout. Aminos from your last meal are still circulating. This category earns its place for fasted training, long sessions and hard dieting.
If you sweat heavily or train in heat, 200mg of total electrolytes will not cover you. Add salt or use a dedicated electrolyte product.
If you want maximum glutamine or betaine alongside your aminos, Intra Blast has more of both.
If you avoid artificial sweeteners, this uses sucralose and acesulfame potassium.
If you are choosing between this and a protein powder, buy the protein — whole protein covers the aminos and more.
Stack it with: a carbohydrate for long sessions, and extra sodium if you sweat hard.
Frequently asked questions
How many EAAs are in a serving?
10 grams of essential amino acids, all nine present, including 7g of BCAAs. Plus 2g of glutamine.
How much leucine does it have?
Around 4,750mg — roughly 2,250mg from the 2:1:1 BCAA blend plus 2,500mg of added instantized leucine. That clears the ~3g threshold associated with maximally triggering muscle protein synthesis.
What is a bitter blocker?
A compound that suppresses bitter taste receptors. Free-form amino acids are chemically bitter and leucine is among the worst, so at 4.75g of leucine a bitter blocker is what makes the product drinkable. It is listed in the other ingredients.
Does it have enough electrolytes?
100mg sodium and 100mg potassium — real but modest. Fine for a normal session, not enough on its own for long training in heat.
What is the difference between EAAs and BCAAs?
BCAAs are three of the nine essential amino acids. All nine are needed to build muscle protein, so a BCAA-only product gives the trigger without the materials. This contains all nine.
Why does it foam?
Amino acids act as surfactants. Every amino powder does it. Stir instead of shaking.
How does it compare to Intra Blast?
Very similar amino profiles — both around 10g EAAs and 7g BCAAs, with Amino Impact carrying more leucine. Intra Blast adds more glutamine, betaine and a much larger electrolyte matrix at a higher price.
Can I take it on rest days?
Yes, particularly when dieting or fasting. The leucine dose triggers muscle protein synthesis even without a full meal.