PEScience · EAA · Powder
Is PEScience Amino IV underdosed?
Verdict
Not stated per servingone dose · studies use 10–12 g of essential amino acids
Hidden in a blendThe label hides how much of each amino acid its blends hold, so the essential amino acids can't be added up: they come to between 5 g and 8.1 g. Studies use 10–12 g in one dose, so even at most this serving falls short.
It ranks 20th of 20 EAA supplements here by dose.
Amino acids, one by one
All nine essential amino acids are on the label. It hides how much of each is in its blend, so the balance can't be checked against the WHO pattern.
| Amino acid | In one serving | In 10 g at the WHO pattern | Share |
|---|---|---|---|
| Leucine | Not stated | 2.12 g | Hidden |
| Isoleucine | Not stated | 1.09 g | Hidden |
| Valine | Not stated | 1.41 g | Hidden |
| Lysine | Not stated | 1.63 g | Hidden |
| Threonine | Not stated | 815 mg | Hidden |
| PhenylalanineWHO figure: phenylalanine + tyrosine | Not stated | 1.36 g | Hidden |
| MethionineWHO figure: methionine + cysteine | Not stated | 815 mg | Hidden |
| Histidine | Not stated | 543 mg | Hidden |
| Tryptophan | Not stated | 217 mg | Hidden |
How this works: the WHO's adult requirement for each essential amino acid (WHO/FAO/UNU 2007, Table 23), scaled to a 10 g dose, the low end of the 10–12 g of essential amino acids in one dose in the ISSN's 2018 review. No study gave these amino acids one at a time at these amounts: it shows how a serving's mix compares with what the body needs, not a dose of each. The WHO figures for methionine and phenylalanine include cysteine and tyrosine, which the body can make; tyrosine is counted when the label lists it. Salt forms are counted as the amino acid in them (lysine hydrochloride as 80% lysine), and a DL form as half L.
What the label says
- Essential Amino Acids per serving
- Not stated in 2 scoops (13.5 g)
- Servings a day
- 1 serving a day
- Research dose
- 10–12 g Evidence: Strong
Directions: Mix 2 level scoops in 12-20 ounces of water. Adjust the amount of water to achieve desired taste. Drink during workouts or athletic events. Additional servings can be taken throughout the day on training and non-training days. For best results consume at least 2 level scoops per day.
Also on the label
| Ingredient | Per serving | Verdict |
|---|---|---|
| Calcium (Calcium Glycerophosphate) | 50 mg | Not graded |
| Potassium (Potassium Citrate) | 99 mg | Not graded |
| Magnesium | 50 mg | Not graded |
| Sodium | 50 mg | Not graded |
| Taurine | Not stated | Hidden in a blend |
More about essential amino acids: forms, timing and the studies behind the dose.
Same category, compared
All 20 EAA supplements we checked, ranked by dose (commission never changes the order). Studies use 10–12 g of essential amino acids; servings counted to 10 g.
| Product | Per serving | Servings to reach it | Form |
|---|---|---|---|
| InnovaPharm Recover EAA | 14.4 g | 1 or less | Powders |
| BulkSupplements.com EAA Powder | 10 g | 1 or less | Powders |
| Dymatize All9 Amino | 10 g | 1 or less | Powders |
| GNC Beyond Raw Precision Amino | 9.88 g | 1 or less | Powders |
| Evogen Amino K.E.M. | 8.5 g | 1.2 at once | Powders |
| NutraBio Alpha EAA | 8 g | 1.2 at once | Powders |
| NutraBio EAA Pure | 7.84 g | 1.3 at once | Powders |
| Nutricost EAA Powder | 7.84 g | 1.3 at once | Powders |
| Nutrex Research EAA + Hydration | 7.74 g | 1.3 at once | Powders |
| FINAFLEX EAA | 7.53 g | 1.3 at once | Powders |
| Jacked Factory EAA Surge | 6.7 g | 1.5 at once | Powders |
| Ghost Amino | 5 g | 2 at once | Powders |
| EA Enhanced EAA+ | 4.88 g | 2.1 at once | Powders |
| Kion Aminos | 4.83 g | 2.1 at once | Powders |
| Thorne Amino Complex | 3.82 g | 2.6 at once | Powders |
| Double Wood Essential Amino Acids | 968 mg | 10.3 at once | Capsules |
| BodyHealth Perfect Amino | Not stated | — | Tablets |
| Cellucor Alpha Amino | Not stated | — | Powders |
| Optimum Nutrition Essential Amino Energy | Not stated | — | Powders |
| PEScience Amino IV (this product) | Not stated | — | Powders |
Where the reference doses come from
- Essential Amino Acids, 10–12 g: Jäger et al., 2017; Kerksick et al., 2018.
- The amino-acid balance: the adult requirement pattern in WHO/FAO/UNU, 2007, Table 23.
- Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 318586, including its servings a day.
For a supplement taken as one dose we judge one serving, and show the most the label allows in a day. Read the full methodology or the corrections log.