Menu
7 Day Customer Support
  • Live Chat
  • 1-800-537-9910
USD
0
Cart
Cellucor C4 Extreme Energy

Cellucor C4 Extreme Energy

A Product
Loaded with 300mg Caffeine for Extreme Energy!
  • Extreme energy blend
  • Blow through your PRs!*
  • 4 delicious flavors
452 Reviews
Share
Muscle & Strength Rewards

Earn 2 points for every dollar you spend at Muscle & Strength! Spend your points on order discounts, fitness gear and exclusive products.

Learn More
2 Free Samples

Try before you buy! You can choose 2 free samples with every order you place at Muscle & Strength.

View Samples
Same Day Shipping

We ship fast! USA orders placed before 6pm EST will be shipped the same day.

International orders placed before 4pm EST will be shipped the same day.

Learn More
60 Day Guarantee

Not happy with your purchase? No problem. Simply return it to us within 60 days and we'll replace it, credit your account, or give you a full refund.

Learn More
Contact Us

If you have any questions about products please call us on 1-800-537-9910 or email [email protected]

Deals

EXTRA 25% OFF
EXTRA 25% OFF
Take an EXTRA 25% off Cellucor C4 Extreme Energy 30sv! Use coupon C4EXTREME30.
Buying Options
$36.99 36.9900
30 Servings
30 Servings | $1.23 Per Serving
EXTRA 25% OFF
–
+
$39.99 39.9900
30 Servings LEGACY LABEL
30 Servings | $1.33 Per Serving
EXTRA 25% OFF
–
+
 
Rewards Earning
0 Points
Nutrition Info

30 Servings Cherry Limeade

Serving Size: 1 Scoop
Servings Per Container: 30 Servings
Amount Per Serving
Amt
%DV
Calories
0
Total Carbohydrate
0g
0%
Sugars
0g
Vitamin C (as Ascorbic Acid)
250mg
417%
Niacin (as Niacinamide)
60mg
300%
Vitamin B6 (as Pyridoxal-5-Phosphate)
1mg
50%
Folic Acid
500mcg
125%
Vitamin B12 (as Methylcobalamin)
70mcg
1167%
Calcium (as Calcium Silicate)
20mg
2%
Potassium
100mg
3%
CarnoSyn Beta-Alanine
3.2g
†
Creatine Nitrate (NO3-T)
1g
†
Arginine Alpha Ketoglutarate
1g
†
C4 Extreme Energy Blend
831mg
†
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), Velvet Bean (Mucuna Pruriens) seed extract (standardized for L-Dopa), Theacrine (as TeaCrine), Rauwolfia Vomitoria root bark extract, Huperzine A (from Toothed Clubmoss (Huperzia Serrata) aerial parts extract)
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Citric Acid, Silicon Dioxide, Natural Flavors, Acesulfame Potassium, Sucralose, Potassium Chloride, FD&C Red #40.

Take one serving (1 scoop) of C4 Extreme Energy, mixed with 6-8fl. oz of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water or performance beverage such as Cellucor Alpha Amino to stay hydrated. Some individual experience a harmless tingling sensation, which is attributable to beta-alanine. USE ONLY AS DIRECTED.

THIS PRODUCT IS ONLY INTENDED FOR HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use if pregnant, nursing, or currently taking PDE5 inhibitors or nitrates for chest pain. Do not take this product before consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family medical history of, any medical condition. This product contains caffeine and should not be used in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if safety seal is broken or missing. Store in a cool dry place. KEEP OUT OF REACH OF CHILDREN. This product is sold by weight, not volume. Some settling of powder may occur during shipping and handling, which may affect density of powder. This product contains the servings indicated when measured exactly by weight.

30 Servings Icy Blue Razz

Serving Size: 1 Scoop
Servings Per Container: 30 Servings
Amount Per Serving
Amt
%DV
Calories
0
Total Carbohydrate
0g
0%
Vitamin C (as Ascorbic Acid)
250mg
417%
Niacin (as Niacinamide)
60mg
300%
Vitamin B6 (as Pyridoxal-5-Phosphate)
1mg
50%
Folic Acid
500mcg
125%
Vitamin B12 (as Methylcobalamin)
70mcg
1167%
Calcium (as Calcium Silicate)
24mg
2%
CarnoSyn Beta-Alanine
3.2g
†
Creatine Nitrate (NO3-T)
1g
†
Arginine Alpha Ketoglutarate
1g
†
C4 Extreme Energy Blend
831mg
†
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), Velvet Bean (Mucuna Pruriens) seed extract (standardized for L-Dopa), Theacrine (as TeaCrine), Rauwolfia Vomitoria root bark extract, Huperzine A (from Toothed Clubmoss (Huperzia Serrata) aerial parts extract)
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Citric Acid, Silicon Dioxide, Calcium Silicate, Natural and Artificial Flavors, Acesulfame Potassium, Sucralose, FD&C Blue #1.

Take one serving (1 scoop) of C4 Extreme Energy, mixed with 6-8fl. oz of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water or performance beverage such as Cellucor Alpha Amino to stay hydrated. Some individual experience a harmless tingling sensation, which is attributable to beta-alanine. USE ONLY AS DIRECTED.

THIS PRODUCT IS ONLY INTENDED FOR HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use if pregnant, nursing, or currently taking PDE5 inhibitors or nitrates for chest pain. Do not take this product before consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family medical history of, any medical condition. This product contains caffeine and should not be used in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if safety seal is broken or missing. Store in a cool dry place. KEEP OUT OF REACH OF CHILDREN. This product is sold by weight, not volume. Some settling of powder may occur during shipping and handling, which may affect density of powder. This product contains the servings indicated when measured exactly by weight.

30 Servings Lemon Drop

Serving Size: 1 Scoop (9g)
Servings Per Container: 30 Servings
Amount Per Serving
Amt
%DV
Calories
5
Total Carbohydrate
1g
<1%
Vitamin C (as Ascorbic Acid)
250mg
417%
Niacin (as Niacinamide)
60mg
300%
Vitamin B6 (as Pyridoxal-5-Phosphate)
1mg
50%
Folic Acid
500mcg
125%
Vitamin B12 (as Methylcobalamin)
70mcg
1167%
CarnoSyn Beta-Alanine
3.2g
†
Creatine Nitrate (NO3-T)
1g
†
Arginine Alpha Ketoglutarate
1g
†
C4 Extreme Energy Blend
831mg
†
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), Velvet Bean (Mucuna Pruriens) seed extract (standardized for L-Dopa), Theacrine (as TeaCrine), Rauwolfia Vomitoria root bark extract, Huperzine A (from Toothed Clubmoss (Huperzia Serrata) aerial parts extract)
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Natural & Artificial Flavors, Citric Acid, Silicon Dioxide, Acesulfame Potassium, Sucralose, FD&C Yellow #5.

Take one serving (1 scoop) of C4 Extreme Energy, mixed with 6-8fl. oz of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water or performance beverage such as Cellucor Alpha Amino to stay hydrated. Some individual experience a harmless tingling sensation, which is attributable to beta-alanine. USE ONLY AS DIRECTED.

THIS PRODUCT IS ONLY INTENDED FOR HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use if pregnant, nursing, or currently taking PDE5 inhibitors or nitrates for chest pain. Do not take this product before consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family medical history of, any medical condition. This product contains caffeine and should not be used in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if safety seal is broken or missing. Store in a cool dry place. KEEP OUT OF REACH OF CHILDREN. This product is sold by weight, not volume. Some settling of powder may occur during shipping and handling, which may affect density of powder. This product contains the servings indicated when measured exactly by weight.

30 Servings Strawberry Kiwi

Serving Size: 1 Scoop
Servings Per Container: 30 Servings
Amount Per Serving
Amt
%DV
Calories
0
Total Carbohydrate
0g
0%
Vitamin C (as Ascorbic Acid)
250mg
417%
Niacin (as Niacinamide)
60mg
300%
Vitamin B6 (as Pyridoxal-5-Phosphate)
1mg
50%
Folic Acid
500mcg
125%
Vitamin B12 (as Methylcobalamin)
70mcg
1167%
Calcium (as Calcium Silicate)
24mg
2%
Potassium
100mg
3%
CarnoSyn Beta-Alanine
3.2g
†
Creatine Nitrate (NO3-T)
1g
†
Arginine Alpha Ketoglutarate
1g
†
C4 Extreme Energy Blend
831mg
†
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), Velvet Bean (Mucuna Pruriens) seed extract (standardized for L-Dopa), Theacrine (as TeaCrine), Rauwolfia Vomitoria root bark extract, Huperzine A (from Toothed Clubmoss (Huperzia Serrata) aerial parts extract)
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Silicon Dioxide, Citric Acid, Natural & Artificial Flavors, Polydextrose, Calcium Silicate, Acesulfame Potassium, Sucralose, Potassium Chloride, FD&C Red #40.

Take one serving (1 scoop) of C4 Extreme Energy, mixed with 6-8fl. oz of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water or performance beverage such as Cellucor Alpha Amino to stay hydrated. Some individual experience a harmless tingling sensation, which is attributable to beta-alanine. USE ONLY AS DIRECTED.

THIS PRODUCT IS ONLY INTENDED FOR HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use if pregnant, nursing, or currently taking PDE5 inhibitors or nitrates for chest pain. Do not take this product before consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family medical history of, any medical condition. This product contains caffeine and should not be used in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if safety seal is broken or missing. Store in a cool dry place. KEEP OUT OF REACH OF CHILDREN. This product is sold by weight, not volume. Some settling of powder may occur during shipping and handling, which may affect density of powder. This product contains the servings indicated when measured exactly by weight.
Directions
Warnings
Expand Info
Product Information

c4 extreme energy header

C4 Extreme Energy

All pre-workouts are not born equal. Some provide a little energy, some provide the kick you need to build mass, some help you lose it. But what you need is energy. Boundless energy. Your intensity comes after an extreme jolt, so we’ve added the most stimulating, caffeine-loaded pre-workout supplement to our C4 ID Series. C4 Extreme Energy is made for your passion, steady drive and unbroken commitment to your workouts.*

If you find yourself drinking cup after cup of coffee throughout the day and built your caffeine tolerance above the rest, C4 Extreme Energy is made for you.

C4 Extreme Energy is the next step for those who want that extra rush. Its formula features more twice as much caffeine, more focus and more endurance than C4 Original. C4 Extreme Energy isn’t for the casual gym goer; it’s for those of you who want to explode through their PRs over and over and over again. We know that for some, just a little bit of energy isn’t enough. C4 Extreme Energy is here to help you get up and go, rising to any challenge.

c4 comparison

Reviews
Overall Rating
4.7 out of 5 stars
Reviews (452)
Verified Buyers (388)
Review Graph
  • 5 star
    78%

  • 4 star
    18%

  • 3 star
    3%

  • 2 star
    1%

  • 1 star
    0%

Top Rated Flavors
  • Icy Blue Raz (4.7/5 )
  • Watermelon (4.6/5 )
  • Strawberry Kiwi (4.6/5 )
  • Icy Blue Razz (4.5/5 )
  • Cherry Limeade (4.5/5 )
  • Lemon Drop (4.5/5 )
  • Fruit Punch (4.5/5 )
    • Show More +
    Show Less -
Write Review
  • Most Recent
  • Most Helpful
  • All Reviews (452 )
  • Verified Buyers (388)
Overall Rating
  • Strawberry Kiwi
    • Show More +
    Show Less -
User Image
shaban a
Build Muscle
Verified Buyer
it was fine. but no match for Redcon1 Total war*
Was this helpful?
You found this not helpful
1 of 1 found this helpful
2018-06-20 04:09:13Z
Overall Rating
  • Lemon Drop
    • Show More +
    Show Less -
User Image
Phillip s
Verified Buyer
C4 ripped is my favorite but when I need an extra boost...*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-12 22:25:31Z
Overall Rating
  • Cherry Limeade
    • Show More +
    Show Less -
User Image
Alexis S
Build Muscle
Verified Buyer
Extremely powerful and good product*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-11 09:32:10Z
Overall Rating
  • Icy Blue Razz
    • Show More +
    Show Less -
User Image
Ahmed K
Contest Preparation
Verified Buyer
Bad taste too much color on it worst every *
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-10 18:24:31Z
Overall Rating
  • Lemon Drop
    • Show More +
    Show Less -
User Image
Muhammad A
Verified Buyer
Great product with worst taste *
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-06 23:37:10Z
Overall Rating
  • Lemon Drop
    • Show More +
    Show Less -
User Image
Muhammad A
Verified Buyer
Ultimate result yet need to improve taste*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-06 23:35:32Z
Overall Rating
  • Icy Blue Razz
    • Show More +
    Show Less -
User Image
ALFONSO C
Verified Buyer
Great stimulant...fantastic results*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-05 11:29:24Z
Overall Rating
  • Icy Blue Razz
  • Strawberry Kiwi
    • Show More +
    Show Less -
User Image
Karolina P
Verified Buyer
Great product. Good ingredients. Great taste. Great price*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2019-01-02 20:53:50Z
Overall Rating
  • Icy Blue Razz
    • Show More +
    Show Less -
User Image
Abdullah O
Verified Buyer
Extreme energie , icey bleu razz great flavor *
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2018-12-31 20:38:36Z
Overall Rating
    Show More +
    Show Less -
User Image
michael w
Verified Buyer
Ultimate c4 is superior to extreme c4, but both are excellent products*
Was this helpful?
You found this not helpful
0 of 0 found this helpful
2018-12-31 16:57:27Z
View 10 More Reviews View All Reviews
* Muscle & Strength does not imply any medical claims from this review. There are no guarantees of specific results and results may vary.
* 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.
The Difference
Lowest Prices, Best Deals
Super-low prices and killer deals on over 8,000 products!
Get free samples
Pick two free samples with every order at M&S!
60 Day Return Policy
100% money back satisfaction guarantee on all orders!
Fit Support Team
Our team of fitness experts is standing by 7 days a week!
Help & Shipping
M&S Rewards
FOLLOW M&S
Contact Us

Muscle & Strength, LLC
1180 First Street South
Columbia, SC 29209
PH: 1-800-537-9910
Email: click here

Join Our Newsletter

Build muscle, lose fat & stay motivated. Join 500,000+ newsletter subscribers!

Brett and Megan
THE TOOLS YOU NEED TO
BUILD THE BODY YOU WANT®
About Careers Write for Us Affiliates Terms of Use Privacy Policy Cookie Policy
© Copyright 2005-2019, Muscle & Strength LLC. Images copyright of their respective owners.
AmericanExpress-darkBoleto IconDinersClub-darkDiscover-darkelectronJCB-lightMasterCard-lightVisa-light