PlainVitamins

NAC Enhanced

by Allergy Research Group · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 7 13947 75960 2
  • DSLD label 258305
  • Serving 1 tablet
  • 90 servings

NAC Enhanced by Allergy Research Group lists 4 ingredients, 4 with an amount per serving of 1 tablet, such as 300 mg of trimethylglycine, 200 mg of N-acetyl-L-cysteine, 120 mg of ribonucleic acid and 100 mg of alpha-lipoic acid. Its current label entered the NIH Dietary Supplement Label Database on October 22, 2021.

What is in NAC Enhanced?

Each row as the label prints it, per serving of 1 tablet. 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).

NAC Enhanced: Supplement Facts rows against the market (DSLD label 258305, January 2026 release)
IngredientAmount% DVAmong products listing it
Trimethylglycine300 mgBetaine in NAC Enhanced against 731 products300 mg per serving; the middle half of products list 50 mg to 1,250 mg, the median 250 mg.300 mg

Higher than 53% of 731 products listing betaine (median 250 mg). Per day at the most servings: 600 mg.

N-Acetyl-L-Cysteine200 mgN-Acetyl Cysteine in NAC Enhanced against 1,259 products200 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.200 mg

Higher than 51% of 1,259 products listing N-acetyl cysteine (median 150 mg). Per day at the most servings: 400 mg.

Ribonucleic Acid120 mgRNA in NAC Enhanced against 159 products120 mg per serving; the middle half of products list 5 mg to 47.5 mg, the median 20 mg.120 mg

Higher than 93% of 159 products listing RNA (median 20 mg). Per day at the most servings: 240 mg.

Alpha-Lipoic Acid100 mgAlpha Lipoic Acid in NAC Enhanced against 2,407 products100 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.100 mg

Higher than 56% of 2,407 products listing alpha lipoic acid (median 50 mg). Per day at the most servings: 200 mg.

Source: NIH ODS Dietary Supplement Label Database, label 258305 (entered October 22, 2021), version 9.4.0. See the label on DSLD. 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:

  • Its 120 mg of ribonucleic acid (filed by NIH under RNA) is higher than 93% of the 159 RNA products that print an amount; 7 list more.

The NIH database records 2 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?

2 products list the very same ingredients; the nearest amounts come first.

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
Suggested Use As a dietary supplement, 1 tablet two times daily, or as directed by a healthcare practitioner.
Storage
Keep in a cool, dry place, tightly capped.

Source: label statements in DSLD label 258305.

What else is on the label?

Other ingredients: Calcium Carbonate, Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide, Stearic Acid, Croscarmellose Sodium, Ethyl Vanillin.

How many labels does NAC Enhanced have?

2 labels are on file under this name since August 23, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 258305 (current) Entered October 22, 2021 · on the market · 90 tablets · UPC 7 13947 75960 2
  2. Label 233414 Entered August 23, 2020 · off the market August 2, 2021 · 90 tablets · UPC 7 13947 75960 2

DSLD also links this label to: NAC (image difference, same product), NAC Enhanced Antioxidant Formula (image difference, same product), NAC Enhanced Antioxidant Formula (image difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Allergy Research Group (distributor), South Salt Lake, UT. All Allergy Research Group products.

Where next?