🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 8% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

16.25 Gram(s) Serving Size
13 Servings
Other Combinations Product Type
8% Evidence Coverage

Supplement Facts — Evidence Check

Calories
35 {Calories}
Total Fat
0.5 Gram(s) (1% DV)
Cholesterol
5 mg (1% DV)
Total Carbohydrates
2 Gram(s) (1% DV)
Protein
5 Gram(s)
Calcium
20 mg (2% DV)
Sodium
40 mg (2% DV)
Potassium
30 mg (1% DV)
5 Gram(s)
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 5mg
1.5 Gram(s)
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 1.5mg
Valine
1.5 Gram(s)
250 mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 250mg

Other Ingredients

Whey Protein Isolate Natural and Artificial flavors Malic Acid hydrogenated Vegetable Oil Citric Acid Monoglycerides Lecithin Salt Sucralose FD&C Blue #2

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (88% of products) Nutrient (18% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

{Chart} Exercise Daily Dose Nitro-Factor(TM) BCAA (g) Benefit Light exercise (1-2 times per week) 1 scoop with or between meals 11 8 Helps meet protein needs & fuel metabolism Moderate exercise (2-4 times per week) 2 scoops after exercise, with or between meals 22 16 Fuels muscles, metabolism & lean muscle mass and supports recovery Moderate to intense exercise (4 or more times per week) 2 scoops in morning, 2 scoops post training 44 32 Improves muscle strength, stamina and size, with a 30% increase in muscle strength

Stack with: Pro Performance(R) AMP Amplified Strength(TM), Amplified Recover(TM), Amplified Wheybolic Extreme 60(TM).

Directions: As a dietary supplement, mix 1-2 scoops with 6 fl. oz. of water daily. For maximum results, take two scoops in the morning and immediately post training.

⚠️ Warnings & Precautions

Contains: Milk and Soybeans.

Keep out of reach of children.

When used in conjunction with an exercise program.

🧪 Formulation Notes

Contains: Milk and Soybeans.

- Immediate & 6 hour release OT2(TM) Leucine for an extended anabolic supply + 16g BCAA

- 10g Leucine stimulates mTor activation to unlock maximum protein synthesis

0g Tran Fat

Additional Information

Notice: Significant product settling may occur.

INFORMED CHOICE {Check}.ORG Trusted by sport

Products bearing this logo have been tested for banned substances by HFL Sport Science, a world-class anti-doping lab. Product was tested for over 145 banned substances on the 2012 World Anti-Doping Agency (WADA) Prohibited List via HFL skip lot testing protocol #ICP0307. See gnc.com for more information.

Store in a cool, dry place.

Daily Strength Recovery

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New

AMP

Concentrated intelligent release Clinically researched

- Activates muscle growth signals & combats catabolic effects

BANNED SUBSTANCE FREE

NITRO-FACTOR 22g(TM)

OT2 OPTIMAL TIMING TECHNOLOGY(TM)

Natural + Artificial flavors

CODE 386219 KNG

An 8 week study of athletes performing an intense resistance exercise training regimen demonstrated that those using this proprietary module of whey protein and leucine had greater increases in muscle strength and size than those on a placebo.

Product Details

UPC / SKU 0 48107 12403 8
DSLD Entry Date 2015-08-25
Product Type Other Combinations
Form Powder
DSLD ID 48182
Data Updated 2026-04-11

Research Evidence

80 Research Sources
49 Avg Quality Score
43 Rct
14 Clinical Trial
11 Systematic Review
9 Meta Analysis
2 Regulatory Source
A Propionyl-L-carnitine for intermittent claudication
Meta Analysis The Cochrane database of systematic reviews 2021
A Carnitine supplements for people with chronic kidney disease requiring dialysis
Systematic Review The Cochrane database of systematic reviews 2022
A Acetyl-L-carnitine for patients with hepatic encephalopathy
Meta Analysis The Cochrane database of systematic reviews 2019
A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy
Meta Analysis The Cochrane database of systematic reviews 2019
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2012
B L-carnitine for cognitive enhancement in people without cognitive impairment
Meta Analysis The Cochrane database of systematic reviews 2017
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2010
B Systematic Review and Meta-analysis on Effect of Carnitine, Coenzyme Q10 and Selenium on Pregnancy and Semen Parameters in Couples With Idiopathic Male Infertility
Meta Analysis Urology 2022
B Effects of Carnitine and Coenzyme Q10 on Sperm Quality and Pregnancy Rates in Men with Unexplained Infertility: A Systematic Review and Network Meta-Analysis
Systematic Review Reproductive sciences (Thousand Oaks, Calif.) 2025
B Efficacy and Effectiveness of Carnitine Supplementation for Cancer-Related Fatigue: A Systematic Literature Review and Meta-Analysis
Meta Analysis Nutrients 2017
View all evidence for Carnitine →

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