No2 Black
by MRI Performance · other (e.g. tea bag) · 300 caplets
- Off the market since June 2020 (NIH)
- UPC 6 33012 07235 4
- DSLD label 77231
- Serving 2 to 5 caplets; amounts per 3 caplets
- 100 servings
No2 Black by MRI Performance lists 4 ingredients, 3 with an amount per serving of 3 caplets, such as 10 mg of dihydroquercetin; 1 sits inside a blend without its own amount. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2017.
What is in No2 Black?
Each row as the label prints it, per serving of 3 caplets. 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 |
|---|---|---|---|
| L-Arginine Proprietary Blend | 3,000 mg | ||
| L-Arginine Alpha-Ketoglutarate | 1,500 mg | Higher than 64% of 322 products listing arginine alpha ketoglutarate (median 1 g). Per day at the most servings: 3 g. | |
| L-Arginine | 1,500 mg | Higher than 81% of 1,455 products listing arginine (median 500 mg). Per day at the most servings: 3,000 mg. | |
| Proprietary Blend (Combination) | 150 mg | ||
| Alpha-Lipoic Acidas Thioctic Acid | in the blend, no amount given | ||
| ACTINOS CFM Nitro P | in the blend, no amount given | ||
| Dihydroquercetin | 10 mg |
Source: NIH ODS Dietary Supplement Label Database, label 77231 (entered August 22, 2017), 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?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 1 ingredient sits inside a blend, so their amounts cannot be compared.
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?
The products whose ingredient lists overlap most with No2 Black's, rare ingredients counting for more.
- NO2 Nos-Enhanced HemodilatorMRI Performance 3 shared, 50% alike
- Super NOS PumpBody Fortress 2 shared, 42% alike
- NosGood 'N Natural · off the market 2 shared, 42% alike
- Sustained plus Immediate Release L-Arginine 500 mgDoctor's Best 2 shared, 42% alike
- Taxifolin 10 mgSuperSmart · off the market 1 shared, 41% alike
- Taxifolin 60 mgSuperSmart 1 shared, 41% alike
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
- Daily dosing chart For men Up to 200 lbs 8 caplets 4 caplets 30 minutes before breakfast and again 30 minutes before lunch over 200 lbs 10 Caplets 5 caplets 30 minutes before breakfast and again 30 minutes before lunch For women up to 125 lbs 4 caplets 2 caplets 30 minutes before breakfast and again 30 minutes before lunch over 125 lbs 6 caplets 3 caplets 30 minutes before breakfast and again 30 minutes before lunch To maximize results, drink at least 64 ounces of water daily while using No2 Black.
- Warnings
- Contains: Milk
- Warning: Consult your healthcare professional prior to use if you have or suspect a medical condition, including high blood pressure and a history of cold sores, are taking prescription drugs, or have allergies to arginine, corn, or citrus fruit.
- Warning: Consult your healthcare professional prior to use if you have or suspect a medical condition, including high blood pressure and a history of cold sores, are taking prescription drugs, or have allergies to arginine, corn, or citrus fruit. Do not use if you are pregnant or lactating.
- Not intended for use by individuals under the age of 18 years.
- Do not exceed the recommended intake.
- Keep out of the reach of children.
- Allergens and what it does not contain
- No: Egg, fish, crustacean shellfish, tree nuts, wheat, peanuts, soybeans, yeast, artificial colors or flavors, added sugar or preservatives.
- Storage
- Store at 59-86(0)F (15-30(0)C). Protect from light and moisture.
Source: label statements in DSLD label 77231.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Hydroxypropyl Cellulose, Crospovidone, Hydroxypropyl Methylcellulose, Silicon Dioxide, Triacetin.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in USA.
How many labels does No2 Black have?
2 labels are on file under this name since August 22, 2017: other sizes, label designs and reformulations. The current one leads this page.
- Label 77231 (current) Entered August 22, 2017 · off the market June 17, 2020 · 300 caplets · UPC 6 33012 07235 4
- Label 77213 Entered August 22, 2017 · off the market June 17, 2020 · 180 caplets · UPC 6 33012 07233 0
DSLD also links this label to: NO2 Black (package size 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 MRI Medical Research Institute (distributor), Chatsworth, CA. All MRI Performance products.