Muscle Fatigue Buffer
by GNC Pro Performance · tablet or pill · 14 pre-training packs
- On the market (NIH)
- DSLD label 30565
- Serving 4 silver tablets
Muscle Fatigue Buffer by GNC Pro Performance lists 6 ingredients, 1 with an amount per serving of 4 silver tablets, such as 20 mg of niacin; 5 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 26, 2014.
What is in Muscle Fatigue Buffer?
Each row as the label prints it, per serving of 4 silver 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 | 20 mg | 100% | 46% of 12,413 products listing niacin give more (median 20 mg). |
| PEG-Arginine System | 3,300 mg | ||
| L-Arginine, Micronized | in the blend, no amount given | ||
| Polyethylene Glycol | in the blend, no amount given | ||
| Circulatory Pump Blend | 380 mg | ||
| MegaNatural-BP Proprietary Grape Blend | in the blend, no amount given | ||
| Yohimbe bark extractas Yohimbe AlkaloidYohimbe bark extract (Form: 2% Yohimbe Alkaloid Note: = 1 mg) PlantPart: bark | in the blend, no amount given | ||
| resVida Trans-Resveratrol | in the blend, no amount given |
Source: NIH ODS Dietary Supplement Label Database, label 30565 (entered February 26, 2014), 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; 5 ingredients sit inside a blend, so their amounts cannot be compared.
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?
The products whose ingredient lists overlap most with Muscle Fatigue Buffer's, rare ingredients counting for more.
- Amplified Maxertion N.O.GNC Mega Men 5 shared, 85% alike
- Amplified Maxertion N.0.GNC Mega Men 5 shared, 85% alike
- Energy EnhancerGNC Longevity Factors · off the market 4 shared, 67% alike
- Energy Enhancer N.O.GNC Pro Performance AMP 4 shared, 67% alike
- Amplified Maxertion N.O.GNC Pro Performance AMP 4 shared, 44% alike
- Amplified Glutamine MicrofusionGNC Pro Performance AMP 2 shared, 40% 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, consume 1 Pre-Training Pack before workout begins, 1 serving of 100% Whey Protein mid-morning or afternoon and 1 Nighttime Strength & Support Pack before bedtime.
Source: label statements in DSLD label 30565.
What else is on the label?
Other ingredients: Cellulose, Enteric Coating, Mica, Artificial Colors, Vegetable Acetoglycerides, natural Mint Flavor, Sucralose.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): NITRO-FACTOR 34G(TM).
How many labels does Muscle Fatigue Buffer have?
One label is on file, entered on February 26, 2014.
- Label 30565 (current) Entered February 26, 2014 · on the market · 14 pre-training packs
DSLD also links this label to: Thermo Igniter 12X (bundle set), Creatine Strength Support (bundle set), Nighttime Restore (bundle set), 100% Whey Protein Chocolate Supreme (bundle set).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names GNC (manufacturer). All GNC Pro Performance products.