Energy Enhancer N.O.
by GNC Pro Performance AMP · tablet or pill
- On the market (NIH)
- DSLD label 5819
- Serving 3 tablets
Energy Enhancer N.O. by GNC Pro Performance AMP lists 4 ingredients, 4 with an amount per serving of 3 tablets, such as 10 mg of niacin, 1,500 mg of L-arginine, micronized, 300 mg of MegaNatural(R)-BP(TM) grape seed extract and 150 mg of peg. Its current label entered the NIH Dietary Supplement Label Database on February 23, 2012.
What is in Energy Enhancer N.O.?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Niacin | 10 mg | 50% | 77% of 12,413 products listing niacin give more (median 20 mg). |
| L-Arginine, Micronized | 1,500 mg | Higher than 81% of 1,455 products listing arginine (median 500 mg). | |
| MegaNatural(R)-BP(TM) Grape Seed Extract | 300 mg | Higher than 89% of 1,900 products listing grape (median 50 mg). | |
| Peg | 150 mg |
Source: NIH ODS Dietary Supplement Label Database, label 5819 (entered February 23, 2012), 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.
The NIH database records one serving 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?
1 product lists the very same ingredients; the nearest amounts come first.
- Energy EnhancerGNC Longevity Factors · off the market same ingredients
- Amplified Maxertion N.O.GNC Mega Men 4 shared, 78% alike
- Amplified Maxertion N.0.GNC Mega Men 4 shared, 78% alike
- Muscle Fatigue BufferGNC Pro Performance 4 shared, 67% alike
- Amplified Glutamine MicrofusionGNC Pro Performance AMP 2 shared, 57% 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
- DIRECTIONS: As a dietary supplement, take the contents of one pak 30-60 minutes pre-workout. On non-training days, take the contents of one pak first thing in the morning with food. Do not exceed one pak daily.
- Warnings
- Consult your physician prior to using this product if you are pregnant, nursing, taking medication, allergic or contraindicated to aspirin, or have a medical condition. Discontinue use two weeks prior to surgery, or if upset stomach occurs.
- KEEP OUT OF REACH OF CHILDREN.
- Allergens and what it does not contain
- No Wheat, No Gluten, No Dairy, Yeast Free.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 5819.
What else is on the label?
Other ingredients: Calcium Carbonate, Enteric Coating, Titanium Dioxide, Vegetable Acetoglycerides, Sodium Copper Chlorophyllins, Sodium Copper Chlorophyllin.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): MegaNatural(R)-BP.
How many labels does Energy Enhancer N.O. have?
One label is on file, entered on February 23, 2012.
- Label 5819 (current) Entered February 23, 2012 · on the market
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names General Nutrition Corporation (distributor), Pittsburgh, PA. All GNC Pro Performance AMP products.