Caffeine | GNC
Gluten Free Gluten Free
Dairy Free Dairy Free
Egg Free Egg Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Corn Free Corn Free
No Preservatives No Preservatives
View All Specialty Diets
Gluten Free Gluten Free
Dairy Free Dairy Free
Egg Free Egg Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Corn Free Corn Free
No Preservatives No Preservatives
View All Specialty Diets
Note: This product cannot be sold in Canada

Product Information



ProLab Performance Simplified
  • Energy
  • Focus
  • Endurance
200mg of Pure Caffeine

PROLAB® Caffeine provides the energizing effects of caffeine with zero added sugar or calories to support your training needs without compromising your dietary goals. Caffeine triggers a range of performance-specific benefits including improved focus, elevated alertness, faster reaction time, reduced fatigue, increased endurance and elevated mood. PROLAB Caffeine delivers a surge of 200mg of caffeine any time you need to quickly jump start your mental and physical performance. You do your part. We’ll do ours.™

This product is to be used in conjunction with a healthy diet and exercise regimen.< br>
Quality ProLab Assurance


Nutrition Facts
Serving Size  1 Tablet(s)
Servings Per Container  100

Amount Per Serving     % DV

Calcium (from Dibasic Calcium Phosphate) 75mg   8%

Caffeine  200 mg   **

** Daily Value (DV) not established.
Other Ingredients
Stearic Acid, Cellulose Gum, Silica, Magnesium Stearate, Methylcellulose, Glycerin
No: Yeast, Wheat, Milk, Egg, Artificial Colors or Flavors, Added Sugar, Starch or Preservatives.
Label (click image to enlarge)

How To Use

Directions: Take 1 tablet, up to three times daily. Allow 3 to 4 hours between servings. Do not exceed 3 tablets daily.
KEEP OUT OF REACH OF CHILDREN. Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking prescription drugs, or are pregnant or lactating. Each serving contains as much caffeine as about 2 cups of coffee. Too much caffeine may cause nervousness, irritability, sleeplessness, and occasionally, rapid heartbeat. Do not exceed the recommended intake.
Store in a cool, dry place.
Manufactured exclusively for: PROLAB Nutrition, Inc. Chatsworth, CA 91311, USA


4.4 / 5.0
21 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great product for a great price
Had great energy. Worked well throughout the day and helped with my studies at school. Also helped with sports. would definitely recommend!
May 21, 2019
Just tried not even half a weird feeling
May 7, 2019
2 months ago
Great product
The caffeine has helped me more than any pre-workout I have used. It Gives me the extra boost at the gym. Have a blessed day!
February 24, 2019
5 months ago
great wake up
great in place of coffee when you don't have time
January 14, 2019
6 months ago
Very clean burn I loved it
November 30, 2018
8 months ago
Excellent service.
July 17, 2018
1 year ago
Prolab Caffeine Tablets
This products wakes my body up gradually, which I really appreciate. I have energy for at least 3-4 hours before I need to take another one. I mostly take one tablet, but will take another one if I need more energy towards the evening hours. I have no problem sleeping either when taking it. My sister gave me one tablet one day and I had to get my own. I take it when I need it, so I'm not addicted to them.
June 7, 2018
Kick tired out
It does little help to kick wake and energy
March 23, 2018
1 year ago
No jittery effects as some people claimed with other brands. Work an overnight shift and one tab is usually enough for a 12hr shift.
February 7, 2018
1 year ago
Didn’t work
January 30, 2018
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 9 questions Browse 9 questions and 8 answers
how long before the caffeine gets into your system?
A shopper on Nov 11, 2013
BEST ANSWER: Full effects can be felt in as little as 20 minutes.
Are these vegan-friendly?
A shopper on Feb 20, 2017
About how long before the dosage start wearing out? Will I be able to go asleep in 4,6, or 8 hours after I take the pill?


A shopper on Aug 14, 2013
BEST ANSWER: This supplement wears out in about 3-4 hours. You should take within 5-6 hours of going to bed due to the caffeine content. Everyone is different, though, so you may be able to take it sooner.
Any side effects? Does the pill need to be eaten with something before consuming?
A shopper on Oct 10, 2016
BEST ANSWER: I take half a pill every morning with some of my other vitamins and juice. With this pill, I have been able to give up drinking soda pop and no caffeine headaches and no side effects.
Does not interfere with unitary infection?
A shopper on Feb 27, 2018
What are the filler ingredients of your pill? Thanks
A shopper on Apr 1, 2017

The other ingredients are as follows: Stearic Acid, Cellulose Gum, Silica,Magnesium Stearate, Methylcellulose, Glycerin.

I hope this helps.
can i dissolve these in water?
A shopper on Nov 1, 2016
BEST ANSWER: There is nothing on the label that indicates it would be okay to dissolve the tablets. I think that the water might taste bitter if you managed to get the tablets to dissolve. The best way to take the tablets is to swallow them whole. If that's a problem for you, you might want to try swallowing the tablet in a spoonful of apple sauce or yogurt.
how big and what color is Prolab® Caffeine by Prolab
A shopper on Sep 26, 2013
BEST ANSWER: This product features no artificial dyes or colors so the pills are white. The tablets are about the size of a Bayer aspirin.
How well does it work on water retention?
A shopper on Dec 12, 2012
BEST ANSWER: There are no side effects mentioned on the label, but it does have caffeine in it. If you have problems retaining water with caffeine, you may have problems with this.