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PlainVitamins

Quest · Other Combinations supplement

Amino Complex 500 mg

20 ingredients on file in the NIH Dietary Supplement Label Database. Off-market, label data preserved for reference.

20
Ingredients
4
Nutrient categories
Top 16%
By ingredient count
Off Market by Quest Verify with NIH DSLD → · FDA overview →

Amino Complex 500 mg is a other combinations supplement by Quest in capsule form, listing 20 ingredients in the NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. Currently listed as off-market (no longer available for purchase, but label data is preserved). Daily Value percentages shown below are based on FDA reference daily intake amounts for adults.

Product Details

Form
Capsule
Database Entry Date
2013-08-23
Ingredients
20

Supplement Facts (20 Ingredients)

Per-row amounts not disclosed: The NIH DSLD record for this product lists ingredients but does not include the per-row Supplement Facts panel (quantities and Daily Value percentages). The full panel may be visible on the physical label or on the manufacturer's site. Verify amounts before use. Look up on NIH DSLD →
Ingredient Group Amount % DV
Hydrolyzed Casein Casein Protein Not disclosed on label No DV
L-Glutamic Acid Glutamic Acid Not disclosed on label No DV
L-Proline Proline Not disclosed on label No DV
L-Leucine Leucine Not disclosed on label No DV
L-Lysine Lysine Not disclosed on label No DV
L-Valine Valine Not disclosed on label No DV
L-Aspartic Acid Aspartic Acid Not disclosed on label No DV
L-Serine Serine Not disclosed on label No DV
L-Tyrosine Tyrosine Not disclosed on label No DV
L-Isoleucine Isoleucine Not disclosed on label No DV
L-Phenylalanine Phenylalanine Not disclosed on label No DV
L-Threonine THREONINE Not disclosed on label No DV
L-Arginine Arginine Not disclosed on label No DV
L-Histidine Histidine Not disclosed on label No DV
L-Alanine Alanine Not disclosed on label No DV
L-Methionine METHIONINE Not disclosed on label No DV
Glycine Glycine Not disclosed on label No DV
Alpha-Glucan Oligosaccharide Alpha Glucans Not disclosed on label No DV
Magnesium Stearate Magnesium stearate Not disclosed on label No DV
Gelatin Gelatin Not disclosed on label No DV

How does Amino Complex 500 mg compare?

Ingredients listed on each label, against the other combinations category average of 21.8. Data from the NIH DSLD.

Amino Complex 500 mg20
1,000 mg Vitamin C Acai Berry34
Other Combinations average21.8

Amino Complex 500 mg lists 14 ingredients fewer than 1,000 mg Vitamin C Acai Berry. That is 2 below the other combinations average.

What the Label Data Shows

Amino Complex 500 mg is cataloged in the NIH Dietary Supplement Label Database (DSLD) as a other combinations supplement from Quest, sold in capsule form. The label declares 20 ingredients. These ingredients span 4 nutrient categories, amino acid, protein, complex carbohydrate, other, reflecting a multi-component formula rather than a single-nutrient product.

Daily Value coverage on this label is informative. No ingredients on this label reach 100% of the FDA reference Daily Value, 0 fall below 100% DV, and 20 have no FDA-established Daily Value reference.. Some nutrients (such as botanicals, amino acids, and specialty compounds) have no Daily Value because the FDA has not set a reference intake; absence of a DV is neither good nor bad on its own.

Market status matters for supplement research. This product is currently listed as off-market in the DSLD, with its label first entered into the database on 2013-08-23. Off-market products are no longer being produced or distributed under this label, but the DSLD preserves their historical label data for researchers, consumers checking older bottles, and for tracking how formulations have evolved. The DSLD is a label database, not an FDA approval list, under the 1994 DSHEA framework, dietary supplements do not require pre-market approval, and label information reflects what manufacturers self-declare rather than independent laboratory verification. This page presents factual label data for reference only and is not medical advice; consult a licensed healthcare provider before making decisions about any supplement.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) Supplement label data for Amino Complex 500 mg: ingredients, % Daily Value, market status, brand · 2026 DSLD captures manufacturer-self-declared label information; the NIH does not verify accuracy or evaluate safety/efficacy. Dietary supplements are regulated under DSHEA 1994, no pre-market FDA approval is required.

Nearby Other Combinations Products

Other products in the NIH DSLD cataloged under the same supplement type. Useful for comparing formulations within the other combinations category.

Compare Amino Complex 500 mg vs 1,000 mg Vitamin C Acai Berry →

1,000 mg Vitamin C Acai Berry
Emergen-C
34 ingredients
On
1,000 mg Vitamin C Acai Berry
Emergen-C
34 ingredients
Off
1,000 mg Vitamin C Cranberry Pomegranate
Emergen-C
34 ingredients
On
1,000 MG Vitamin C Cranberry-Pomegranate
Emergen-C
34 ingredients
On
1,000 mg Vitamin C Lemon Lime
Emergen-C
32 ingredients
On
1,000 mg Vitamin C Lemon Lime
Emergen-C
30 ingredients
On

Ingredient Breakdown by Category

amino acid
16
L-Glutamic Acid, L-Proline, L-Leucine, +13 more
protein
2
Hydrolyzed Casein, Gelatin
complex carbohydrate
1
Alpha-Glucan Oligosaccharide
other
1
Magnesium Stearate

Daily Value Coverage

0
Above 100% DV
0
Below 100% DV
20
No DV Established

Supplement Guides

→ How to Read a Supplement Facts Panel → Supplement Safety Basics → Compare Supplements Using NIH Data → Are Supplements Worth Taking? → Practical Guide to Supplement Labels

Explore more supplement data

All Other Combinations supplements
Browse every product cataloged under the other combinations category.
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See the full label catalog for this brand in the NIH DSLD.
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Supplement rankings
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Frequently Asked Questions

What ingredients are in Amino Complex 500 mg? ▼
Amino Complex 500 mg contains 20 ingredients. Ingredients span 4 categories: amino acid, protein, complex carbohydrate, other.
Who manufactures Amino Complex 500 mg? ▼
Amino Complex 500 mg is was manufactured by Quest. It is classified as a Other Combinations supplement in capsule form.
Is Amino Complex 500 mg still available for purchase? ▼
According to the NIH DSLD database, Amino Complex 500 mg is listed as off-market and may no longer be available for purchase.
What is the serving size of Amino Complex 500 mg? ▼
The serving size is not specified.
What type of supplement is Amino Complex 500 mg? ▼
Amino Complex 500 mg is classified as a "Other Combinations" supplement in the NIH database. This category includes products primarily composed of other combinations ingredients. The NIH DSLD tracks 9 supplement categories: Vitamin, Mineral, Botanical, Amino Acid & Protein, Non-Nutrient, Fat & Fatty Acid, Multi-Vitamin & Mineral, Botanical with Nutrients, and Other Combinations.
Where does this Amino Complex 500 mg data come from? ▼
All label data comes from the NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. The DSLD is a publicly accessible database containing label information, including ingredients, serving sizes, and Daily Value percentages, for dietary supplement products marketed in the United States.

Data Sources & Methodology

Data as of 2025. Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD).

Supplement label data sourced from the Source: NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. The DSLD contains label information from dietary supplement products marketed in the United States.

Daily Value (DV) percentages are based on Source: FDA 21 CFR 101.9 Reference Daily Intake (RDI) values for adults. Products marked "Off Market" may no longer be available for purchase but their label data remains in the database for reference.

Disclaimer, Not Medical Advice: Label data from the Source: NIH Dietary Supplement Label Database (DSLD). This information is for educational and reference purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, stopping, or combining any dietary supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Read our methodology , how this data is sourced, computed, and verified.