Skip to content

Tribulus Terrestris

GNC Pro Performance AMPUpdated April 2026

Product Information

Form
Capsule
Product Type
Botanical
DSLD Entry Date
2015-02-25

Target Groups

Adult Male (18-50 Years)Gluten FreeDairy Free

All Ingredients

IngredientAmount% DV
Tribulus terrestris extract300 mg

† Daily Value not established.

Label Statements

General Statements: All Other Content

In a randomized, double-blind, placebo-controlled study of 112 healthy volunteers, subjects taking the GNC vitamin and mineral blend in this product for six weeks experienced statistically significant improvements in markers of B vitamins and antioxidant status, as well as improvements in SF-36 Vitality and Mental health scores compared to those taking a placebo. In a clinical study of 17 healthy young adults, muscle biopsy results revealed that GNC Pro Performance(R) AMP Amplified Creatine 189(TM) resulted in 189% greater muscle creatine uptake relative to benchmark amounts of ordinary creatine monohydrate powder. When used in conjunction with regular resistance training. In a randomized, double-blind clinicial study of 57 healthy young adult males, subjects who took, GNC Pro Performance(R) AMP Amplified Creatine 189(TM) containing only 1.25 grams creatine significantly improved leg press 1-RM performance by 54 lbs, while subjects on 5 grams of creatine monohydrate improved by 52 lbs, and the placebo group demonstrated no significant improvement when used in conjunction with regular resistance training.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements: All Other Content

ADVANCED MUSCLE PERFORMANCE

FDA Statement of Identity

Dietary Supplement

General Statements: All Other Content

ADVANCED SPORTS VITAMIN SYSTEM TO ENHANCE STRENGTH TRAINING WITH OVER 50 POWERFUL INGREDIENTS

General Statements: All Other Content

- Features GNC’s Highest-Potency Sports Multivitamin to Fuel Maximum Strength Training - Scientifically Formulated to Improve Upper and Lower Body Strength and Help Pack on Mass

Formula re: Contains

- The Power of 5g of Creatine in 2 Tablets Delivers 189% Improved Muscle Creatine Absorption - Triggers Anabolic Factors with High-Quality Tribulus & Fenugreek

General Statements: All Other Content

Daily Strength Size Power

General Statements: All Other Content

Clinically Researched

General: Product/Version Code

CODE 331811 ANG

Suggested/Recommended/Usage/Directions

DIRECTIONS: As a dietary supplement, take the contents of one pak 30-60 minutes per-workout. On non-training days, take the contents of one pak first thing in the morning with food.

General Statements: All Other Content

Each pak contains:

Formula re: Contains

Tribulus Terrestris

General Statements: All Other Content

{Capsule} Actual Size

Precautions re: Pregnant or Nursing or Prescription Medications

WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, under 18 years of age or have a medical condition.

Precautions re: All Other

Discontinue use two weeks prior to surgery.

Formulation re: Does NOT Contain

No Wheat, No Gluten, No Dairy, Yeast Free.

Precautions re: Children

KEEP OUT OF REACH OF CHILDREN.

Storage

Store in a cool, dry place.

General Statements: All Other Content

{QRC} SCAN & LEARN MORE

Suggested/Recommended/Usage/Directions

To take muscular strength gains to new levels, stack with: - Amplified Muscle Igniter 4X – to improve physical and mental intensity - Amplified Mass XXX(TM) - provides a ratio of nutrients proven to accelerate increases in lean mass and exercise performance.

General Statements: All Other Content

GNC QUALITY COMMITMENT For more than 75 years, GNC has been the leader in the development and manufacture of dietary supplements, is committed to producing the most superior products. We use only the highest quality ingredients manufactured under the strictest quality controls. Every raw material used is tested to ensure its purity and potency. Each product is dated and then shipped immediately to our stores to ensure that you are purchasing the freshest supplements available.

General Statements: All Other Content

GNC GUARANTEE If you are not 100% completely satisfied, return the unused portion of the product with your receipt to a GNC store within 30 days. Our trained sales staff will either refund your purchase price or, if you prefer, assist you in finding a replacement product to help you LIVE WELL.

General Statements: All Other Content

Each performance boosting pak delivers GNC’s most optimal and precise combination of a premium daily multivitamin and sports nutrients. With over 50 powerful ingredients to support your total exercise strength training program, we’ve taken athletic performance nutrition to a whole new level. This scientifically mastered formula features a daily premium multivitamin and support nutrients combined with strength supporting mechanisms.

Brand IP Statement(s) re: (c), (TM), (SM)

The Pro Performance(R) AMP Strength Vitapak(R) Program Evolution

General Statements: All Other Content

When activating the strength-building potential of this exclusive system, you amplify total strength results, increase muscular power and prepare your muscles to utilize the nutrients necessary to build mass with this complete training stack.* Most athletes today are not combining the proper combinations and ratios of critical sports nutrition.

Formula re: Contains

Mega Men(R) Sport contains B-vitamins that are important for energy production and carbohydrate metabolism. It provides amino acids, including BCAA, and a joint cushioning blend for healthy joint cartilage. Also features a broad spectrum of cell-protecting antioxidants and nutrients that aid in boosting immunity.*

Brand IP Statement(s) re: (c), (TM), (SM)

This advanced multivitamin platform delivered by Mega Men(R) Sport allows well-trained muscles to develop, build and recover. If attaining every possible ounce of strength is your goal to improve your competitive edge, then the Pro Performance(R) AMP Strength Vitapak(R) Program is your new weapon in training. Mega Men(R) Sport – This high-potency clinically studied sports multivitamin formula includes critical components to fill important nutrient gaps in regular supplementation programs.

Formula re: Contains

Amplified Creatine 189(TM) - This advanced, cutting edge formula has been clinically proven to get in your muscles better than ordinary creatine.

General Statements: All Other Content

Creatine promotes cellular hydration and helps fuel muscles to improve and enhance athletic performance. This form increases strength with only 25% of the dose of ordinary creatine. In a clinical study, this form of creatine yielded 189% muscle creatine uptake relative to ordinary creatine monohydrate. This allows you to take less and get more into the muscle.

Formula re: Contains

Tribulus Terrestris & Anabolic Primer – Features high-quality Tribulus Terrestris and Fenugreek extract clinically studied to support anabolic muscle factors in the body.

Brand IP Statement(s) re: (c), (TM), (SM)

What is Pro Performance(R) AMP Strength Vitapak(R) Program? Strength. Power. Mass. You train and prepare in the gym and on the field to reach your fullest physical potential. Now, with the Pro Performance(R) AMP Strength Vitapak(R) Program powered by Mega Men(R) Sport, ensure you leave nothing under-utilized by maximizing the results of your supplement and training regimen.

Supplement Facts Panel

Supplement Facts
Serving Size 1 Brown Capsule(s)
Amount Per Serving% Daily Value*
Tribulus terrestris extract
300 mg

* Percent Daily Values are based on a 2,000 calorie diet.

† Daily Value not established.

Find on Amazon

Similar Products