9 Essential Amino Acids
by Signature Supplements · capsule · 100 capsules
- On the market (NIH)
- DSLD label 338587
- Serving 2 capsules
- 50 servings
9 Essential Amino Acids by Signature Supplements lists 9 ingredients, 9 with an amount per serving of 2 capsules, such as 190 mg of leucine, 150 mg of lysine, 119 mg of phenylalanine and 97 mg of valine. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.
What is in 9 Essential Amino Acids?
Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Leucine | 190 mg | 91% of 2,056 products listing leucine give more (median 2.5 g). Per day at the most servings: 0.57 g. | |
| Lysine | 150 mg | 72% of 1,250 products listing lysine give more (median 500 mg). Per day at the most servings: 450 mg. | |
| Phenylalanine | 119 mg | 67% of 611 products listing phenylalanine give more (median 250 mg). Per day at the most servings: 357 mg. | |
| Valine | 97 mg | 94% of 1,632 products listing valine give more (median 1.25 g). Per day at the most servings: 0.291 g. | |
| Threonine | 97 mg | 80% of 590 products listing THREONINE give more (median 500 mg). Per day at the most servings: 291 mg. | |
| Methionine | 97 mg | 51% of 981 products listing METHIONINE give more (median 100 mg). Per day at the most servings: 291 mg. | |
| Isoleucine | 97 mg | 94% of 1,614 products listing isoleucine give more (median 1.23 g). Per day at the most servings: 0.291 g. | |
| Histidine | 52 mg | 71% of 591 products listing histidine give more (median 125 mg). Per day at the most servings: 156 mg. | |
| Tryptophan | 22 mg | 89% of 605 products listing tryptophan give more (median 123 mg). Per day at the most servings: 66 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 338587 (entered September 25, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- 91% of the 2,056 products that print an amount of leucine list more than its 0.19 g of leucine (median 2.5 g).
- 94% of the 1,632 products that print an amount of valine list more than its 0.097 g of valine (median 1.25 g).
- 94% of the 1,614 products that print an amount of isoleucine list more than its 0.097 g of isoleucine (median 1.23 g).
The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Essential AminosPure Encapsulations same ingredients
- Essential Amino AcidsDouble Wood Supplements same ingredients
- Eaa2000Evlution Nutrition same ingredients
- Grunt Tiger's BloodRedcon1 same ingredients
- Grunt Pineapple BananaRedcon1 same ingredients
- Amino-9 Essentials PowderNOW Sports same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: For adults, take 2 capsules up to three times a day with or without food.
- Warnings
- As a reminder, discuss the supplements and medications you take with your health care providers.
- Warning: Pregnant or lactating women should consult a doctor before using any product.
- Discontinue use and consult your doctor if any adverse reactions occur, such as gastrointestinal discomfort or any allergic reaction.
- Allergens and what it does not contain
- No: chemical fillers or binders, artificial coloring, artificial flavor, preservatives, yeast, corn, milk or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, starch or wheat.
Source: label statements in DSLD label 338587.
What else is on the label?
Other ingredients: Cellulose, Diatomaceous Earth.
How many labels does 9 Essential Amino Acids have?
One label is on file, entered on September 25, 2025.
- Label 338587 (current) Entered September 25, 2025 · on the market · 100 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Signature Supplements (distributor), San Clemente, CA. All Signature Supplements products.