Extreme Caffeine - 100 tabs

Extreme Caffeine - 100 tabs

By ProSource Item PSP078
9.1 out of 10 | 68 Review(s)


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100 tab(s)
Extreme Caffeine
In Stock
Extreme Caffeine - 100 tabs
Serving Size: 1 Tablet
Servings Per Container: 100
Amount Per Serving% Daily Value *
Calcium (as dicalcium phosphate) 200 mg20%
Caffeine (anhydrous, natural) 200 mg**
L-Tyrosine 250 mg**
Other Ingredients: Stearic Acid, magnesium stearate, croscarmellose sodium, aqueous film coating [purified water, hydroxypropyl methylcellulose, polyethylene glycol].

** Daily Value not established.



Superior form of the well-researched performance enhancer

Extreme Caffeine is a highly thermogenic, pre-workout stimulator that contains 200mg of the highest-quality natural caffeine available. Caffeine has been clinically shown in numerous studies to deliver significant boosts in energy and increase resting energy expenditure, time to exhaustion and cellular thermogenesis. It also enhances muscle metabolism and significantly increases performance. Extreme Caffeine is further supercharged with 250mg of L-Tyrosine for added focus and performance enhancement, and 200mg of calcium. Put the full value of pure, high-powered caffeine to work for you with Extreme Caffeine from ProSource.

Use as directed with a sensible nutrition and exercise program. Read and follow all product label instructions and warnings thoroughly before use. 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.


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Recommended Usage: Adults 18 years and over, take one tablet no more than every eight hours. Do not take more than 2 tablets daily.

Customer Reviews 68 item(s)

I take this with Nytrowhey elite every morning before work. It will keep you up a good 8hrs even on non trainings days. Worth every penny.
(Posted on 5/19/2015)
I tried this as an alternative to the BlackJax energy supplements and it does give you a boost. Fades faster than I would like but much cheaper than other caffeinated supplements.
(Posted on 2/24/2015)
Great product great price. Product does exactly what it's supposed to!
(Posted on 2/24/2015)
product works very well
(Posted on 2/24/2015)
great for non-workout days. keeps energy up,no crash. great price.
(Posted on 2/24/2015)
I use Extreme Caffeine when I work out and when I work my job at a restaurant. It gets really busy, energy drinks just don't cut it. I take one tablet in the middle of my shift and 40 minutes later it slowly picks me up and carries me thru the shift without a crash. It's great and the price is fantastic
(Posted on 2/24/2015)
Great product. Way better than coffee or energy drinks. Gets me going when I'm working out and I don't crash. It is the most effective way for me to study for my exams and focus without the shaking that coffee or energy shots give me. I've used about 5 bottles now and all have worked great.
(Posted on 2/24/2015)
Great product for a quick energy boost. You can't beat the quality or the price either!
(Posted on 10/28/2014)
I mainly use this for my pre workout along with beta alanine and arginine stack. for me that is a great pre-workout. I can't stomach some of the other pre-workouts after about 15 and 20 minutes I get a little nauseated. The caffeine and beta alanine and arginine work great for me.
(Posted on 8/28/2014)
Extreme caffeine has been my source of caffeine for years. Working the night shift requires me to be alert. This supplement does not give me the"jitters" or upset my stomach. I've tried alot others....extreme caffeine the best.

t your supplement is the nest for me.
(Posted on 7/23/2014)
Gives you a great boost when you need it without the extra calories. I actually take one of these in the morning instead of coffee now...quick, easy, tasteless, and effective!
(Posted on 7/17/2014)
Great product very affordable
(Posted on 7/4/2014)
Very affordable energy boost, Added tyrosine gives you a mental boost also.
(Posted on 6/28/2014)
I am constantly going with work and kids all the time. It works great. It doesn't give me the jitters and you can get 100 pills for the same price it costs for 1 energy shot. It's like drinking a cup of coffee that lasts for 6 to 8 hours.
(Posted on 5/7/2014)
This product gives an awesome boost of energy without the typical jitters associated with energy boosters. I have been using this product both in the gym and at work to maintain focus and performance levels. A great product for a great price. This has quickly become a staple in my supplement arsenal.
(Posted on 4/19/2014)
Solid product...great energy and focus.
(Posted on 4/13/2014)
I took these with zycor and my good I thought I was going to go nuts. Its powerful and gives you so much energy you better be working out or doing something active. Make sure to eat also I forgot to once and gave me crazy heartburn. BUY IT!
(Posted on 4/6/2014)
This caffeine product gives me a good workout and keeps me mentally alert. I'm a senior, so being alert is better than having to take naps.
(Posted on 3/19/2014)
I take one capsule before I lift, then one capsule before I run. It gives you the edge to really push and have a great hard workout(most days) :)
Also I sometimes break in half during afternoon at work to keep me going.
Great price and great product! No Jitters.
(Posted on 1/27/2014)
Great alternative for those of us who don't have time to drink coffee or a Red Bull in the morning.
(Posted on 1/19/2014)
Gave me tons of energy. I stopped drinking coffee and just take this now.Keeps me up and going.
(Posted on 12/2/2013)
An excellent thermogenic! I've lost 60+ lbs and I feel this was a big part of that when combined with a healthier diet and moderate cardio and weight training. The energy boost was an added plus!
(Posted on 11/17/2013)
A quick cheap energy boost.. Great for a morning
Cardio boost..
(Posted on 9/25/2013)
Good clean energy
(Posted on 9/24/2013)
It's my first time to use ProSource Caffeine Pills and I didn't know how potent actually gives me the Proper Hype I need to start my day
(Posted on 9/2/2013)
My husband and I love this product. We use it for everything from pre workout boost to midday pick me up... Definitely would recommend it- especially for the price!
(Posted on 6/3/2013)
I would definitely recommend buying this product. You can use them as a pre-workout before the gym or if there is one day where you wake up in the morning and your feeling sluggish you just pop a caffeine tab and you'll have hours of energy. It's a lot faster and cheaper than buying coffee! Definitely buy this product.
(Posted on 10/2/2012)
Some days I don't have time to mix a preworkout drink. With the extremly low cost of these I keep them on hand for back up energy. I dont understand some of the other reveiwers saying they don't work. I have taken two of these and was flying through some of the most intense workouts of my life. Cleanest, strongest caffeine I have ever had. This stuff really gets you cranking for very cheap!
(Posted on 9/23/2012)
Good product ESP for the cost. I crush the pill and mix it with carbogain and twin labs amino fuel in water for a pre/intraworkout drink
(Posted on 9/17/2012)
Not for me - I actually just threw it away after I tried to give it away and nobody liked it. It didnt give me the boost that I was looking for.
(Posted on 8/28/2012)
These keep my mind "in the game" til the end of my workouts. I also use them as needed to remain alert at work without consuming buckets of tea. No jitters or crash for me.
(Posted on 7/20/2012)
For the price you really can't beat this product. ProSource did a great job on this one.
(Posted on 7/3/2012)
For the price these pills pack a punch! Takes about 30 minutes to "kick in". No crash feeling when the pill wears off.
(Posted on 5/15/2012)
I love it. It's perfect for those of us on a tight budget that don't drink coffee. NO jitters and no funky taste
(Posted on 4/14/2012)
Great product. Works better than energy shots for me. Use on a daily basis & gives me energy and aides in my weight loss goals also. Price is right!!!
(Posted on 4/8/2012)
Great energy and focus though out the day without crashing. For $0.45 a pill are you kidding? Better than spending $2 - $3 each for an energy drink and no bloating.
(Posted on 3/26/2012)
For me this is nice, smooth energy. Allow me to blow through the afternoon blahs. Still sleep good at night too!
(Posted on 3/20/2012)
Packs a punch to get me through a workout. Great deal!
(Posted on 3/14/2012)
Works good and didn't make me jittery. At good price.
(Posted on 2/24/2012)
Best Caffine stimulants that I have found to work for me, I've tried others, even the higher price ones and I still come back to these, they just work better the others.
(Posted on 2/17/2012)
I didn't get anything out of this product. It didn't give me any energy boost.
(Posted on 1/7/2012)
Works great and good price.
(Posted on 11/27/2011)
I gave this product a shot, considering it had a good profile and a great price, but not even 15 minutes after taking it, it gave me chest tightness and heart palpitations. My girlfriend experienced similar symptoms. Neither of us are sensitive to caffeine and have taken many pre-workout stimulants before with no issues. I cannot recommend this product.
(Posted on 11/10/2011)
Love it! I work all day as an 8th grade Math teacher, then workout in the evenings. I teach kettlebell and run half marathons so I'm training everyday. The extra (gentle) boost Extreme Caffeine gives me helps me get through my workouts after funfilled days with 8th graders! :) Did I mention that a whole bottle costs less than a coffee at Starbucks? :)
(Posted on 10/30/2011)
Love this caffeine pill. I have been taking these pills for a while now and I take one daily along with B-Power and Ultra GTX. Gets me through a hard day at work for a very good price!
(Posted on 10/17/2011)
I take one before workout with protein shake. I take another at work and don't need to drink three cups of coffee to stay awake.
(Posted on 9/23/2011)
Great for pre-workout if I have nothing else. Also a great addition to some pre-workout supplements. Great product for the price.
(Posted on 9/21/2011)
Great product for working out and/or running.
(Posted on 9/16/2011)
Get hyped up for your workouts for cheap. Not much different than other caffeine pills other than the "come down" being more smooth and a little less stomach irritation. For me, one of these has me going for about 3 hours pretty strong, and then drops off to almost nothing, with no crash. Great product. Don't buy pre workout supps, guys, piece together your own and save a ton each year.
(Posted on 9/13/2011)
Gets u jacked up..If you take on a day where your not tired it makes you jittery. But if you take on a day like after work, it gets you going again.
(Posted on 8/24/2011)
For this price it is the best pre-workout supplement out there. I have to force myself to leave the gym after taking two of them. Everyone I give samples to end up buying their own.
(Posted on 8/14/2011)
This will be the second bottle I've ordered. This product is all I need for explosive energy and focus. Extreme Caffeine taken 30 minutes before my workout helps me to squeeze out that 1 or 2 more extra reps. Since I workout at 6 am the caffeine boost doesnt interfere with sleep. Excellent product for a cheap price! 10 stars !
(Posted on 7/31/2011)
Excellent Value and works great! ProSource knows how to give the people what they want for cheap.
(Posted on 7/24/2011)
This gets me going and is much better than all of the other fat burners or energy drinks.
(Posted on 7/1/2011)
Excellent Product,Easy to Take,Very Inexpensive. Gives You the Pep and Focus You Need to Get Through the Day.
(Posted on 6/30/2011)
Seems quality, however at this point I have not used it, but once or twice.
(Posted on 6/14/2011)
Works as well as a strong cup of starbucks coffee to start your day- but very inexpensive and easy and quick. Just pop and feeling awake in 30-45 minutes.
(Posted on 6/11/2011)
Gives me energy to start the day with. I take this with a B complex pill in the am.
(Posted on 5/28/2011)
Stack this with anabolic essentials for a good preworkout pump. Less expensive combo with more servings than regular pre-workout formulas.
(Posted on 5/17/2011)
Cheap and very effective energy boost. Great for pre-workout or a long day at work.
(Posted on 5/13/2011)
Great to start your mornings with. Pure source, perfect price.
(Posted on 4/11/2011)
A preworkout supp I don't go without. Clean energy without the added sugar and cals from a energy drink and for the price, no contest.
(Posted on 4/3/2011)
I works great. I cut out the energy drinks completely and replaced my afternoon coffee with these and they work better. It does what it's supposed to do and it is not expensive 5 stars
(Posted on 3/31/2011)
I give this 5 STARS..... Forget paying for all those energy drinks. This supplement has to be the best for a boost of energy in minutes of being tired, lazy, about to workout, etc. I Highly Recommend this supplement.
(Posted on 3/27/2011)
One of the cheapest supplements out there and it works Great source of caffeine without the extra calories you would normally consume getting caffeine in energy drinks.
(Posted on 9/14/2010)
Excellent Product. Very affordable and very effective. IT does have a lot of additives, but its effect can not be denied.
(Posted on 7/5/2010)
Very Effective And Awesome results for fat burning, and energy.
(Posted on 6/20/2010)
Cheap and effective.
(Posted on 5/26/2010)

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