PlainVitamins

N.O.max ER

by XYMOGEN · tablet or pill · 180 tablets

  • On the market (NIH)
  • UPC 8 71149 00164 3
  • DSLD label 335504
  • Serving 3 tablets
  • 60 servings

N.O.max ER by XYMOGEN lists 2 ingredients, 2 with an amount per serving of 3 tablets, such as 1.98 g of L-arginine alpha ketoglutarate and 150 mg of ActiNOS. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in N.O.max ER?

Each row as the label prints it, per serving of 3 tablets. 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).

N.O.max ER: Supplement Facts rows against the market (DSLD label 335504, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Arginine Alpha Ketoglutarate1.98 gArginine Alpha Ketoglutarate in N.O.max ER against 322 products1.98 g per serving; the middle half of products list 0.75 g to 1.99 g, the median 1 g.1.98 g

Higher than 73% of 322 products listing arginine alpha ketoglutarate (median 1 g). Per day at the most servings: 3.96 g.

ActiNOSas Whey Protein, Hydrolyzed150 mgWhey Protein in N.O.max ER against 357 products0.15 g per serving; the middle half of products list 11.4 g to 28.74 g, the median 22 g.0.15 g

96% of 357 products listing whey protein give more (median 22 g). Per day at the most servings: 0.3 g.

Source: NIH ODS Dietary Supplement Label Database, label 335504 (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:

  • 96% of the 357 products that print an amount of whey protein list more than its 0.15 g of ActiNOS (filed by NIH under whey protein) (median 22 g).

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
Directions: Take three tablets twice per day: 3 tablets 30 minutes before breakfast and 3 tablets again 30 minutes before lunch with 8 ounces of water.
Warnings
Cautions: Consult your healthcare professional prior to use, especially if you have or suspect you have a medical condition, including diabetes or cold sores; if you take prescription drugs or are allergic to any ingredient; or if you are pregnant or lactating.
Keep out of reach of children. This product is not intended for use by individuals under 18 years of age. Storage: Keep closed in a cool, dry place out of reach of children.
Do not use if tamper seal is damaged.
Contains: Milk
Allergens and what it does not contain
Formulated to Exclude: Wheat, gluten, yeast, soy, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners.
Storage
Storage: Keep closed in a cool, dry place out of reach of children.

Source: label statements in DSLD label 335504.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Stearic Acid, Hydroxypropyl Cellulose, Silica, Hydroxypropyl Methylcellulose, Medium Chain Triglyceride, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): ePV (ePedigree Verification) Third-Party Verified GMP Compliant.

How many labels does N.O.max ER have?

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

  1. Label 335504 (current) Entered September 25, 2025 · on the market · 180 tablets · UPC 8 71149 00164 3
  2. Label 303609 Entered February 22, 2024 · on the market · 60 packets · UPC 8 71149 00216 9
  3. Label 303764 Entered December 14, 2023 · on the market · 180 tablets · UPC 8 71149 00164 3
  4. Label 240294 Entered January 22, 2021 · on the market · 180 caplets · UPC 8 71149 00164 3
  5. Label 218470 Entered April 23, 2020 · off the market June 19, 2020 · 180 caplets · UPC 8 71149 00164 3

DSLD also links this label to: N.O.Max ER (image difference, same product), N.O.Max ER (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 XYMOGEN Exclusive Professional Formulas (manufacturer), Orlando, FL. All XYMOGEN products.

Where next?