Overall Rating 
Product Claims
Made by Cellucor. Enhance adrenal output. Increases metabolism.
Comparisons
Xenadrine EFX | Hydroxycut | Lipo 6 | Trim Spa | Burn 60 | Lipozene
23 Sep 2008 - Eve of Florida, USA writes:
I've been on D4 for about three weeks now and have not lost weight at all. I exercise and eat healthy. I increased my protein intake and have actually gained 5 lbs and have had digestion problems too (possibly the protein). I tried going up to 4 per day but had trouble breathing and getting through the workout. I dropped back to two tablets and seem to be ok. I have notice more definition in my leg and arm muscles so I hoping that the weight gain is due to increased muscle. I'm going finish the bottle and see how it goes. I'm only looking to lose 10 lbs.
19 Aug 2008 - Ryan of Texas, USA writes:
I weight 241 pounds and Started taking GNC Mega Men Sport vitamin (the best), Hydroxycut Hardcore this summer along with working out, running, eating right, and drinking plenty of water. I lost 31 pounds in 2 months, weighing 210. Hydroxycut helped but I give the others more credit. When I ran out I bought this D4. It is the best supplement I have tried for weight loss. It has given me way more energy with less caffine. I can run and work out longer. Belly fat goes easier too. I now weigh 187 and I'm pretty happy. Running and Water is the Key though.
3 Jul 2008 - Brandon of California, USA writes:
I have been on it for about a week. I used to take Animal Stack with Ephedra, and this stuff amps me more than that ever did. I was nervous to try it again after me and my roommate took one and got a little to rambunctious and kicked down our neighbors wooden fence. No worries though, we built a new one within the hour.
25 Jun 2008 - Christopher of Massachusetts, USA writes:
I did a fat loss contest with some guys from work and used this to go from 25% TO 12% in 8 weeks!! Good diet and exercise of course, but this stuff was awesome and helped a LOT! Start w/ 1 in the am prior to work-out, 1 mid afternoon just after lunch. Great energy and no jitters when done correctly. Can work up to 2 per dose, but definatley limit or eliminate caffiene intake when using. Drink plenty of water! But then again, that is key anyway in losing weight / fat. Great product! I would certainly use again and recommend.
1 May 2008 - m.rodriguez of Florida, USA writes:
I took Cellucor as instructed on the bottle and by the 3rd day I thought I was having a heart attack. Cellucor raises your blood pressure and speeds up your heart rate fast. I do not recommend this product no matter how much your weight. There are safer ways to loose the pounds.
12 Apr 2008 - Sunny of Georgia, USA writes:
I have been taking this product for around weeks. It take a week to grt used to it so take it easy on the dosage....better than hydroxycut hardcore. From 28% bodyfat I have come down to 25.4% and of course that is with exercise and eating right. Gives a decent boost in energy.LOST 13 POUNDS OF FAT with no loss in muscle mass. My goal is around 10-12 %. Prolly gona alternate months with lipo 6x...definately worth a shot...
12 Apr 2008 - Sunny of Georgia, USA writes:
I have been taking this product for around weeks. It take a week to grt used to it so take it easy on the dosage....better than hydroxycut hardcore. From 28% bodyfat I have come down to 25.4% and of course that is with exercise and eating right. Gives a decent boost in energy.LOST 13 POUNDS OF FAT with no loss in muscle mass. My goal is around 10-12 %. Prolly gona alternate months with lipo 6x...definately worth a shot...
31 Mar 2008 - Elizabeth of Illinois, USA writes:
In my experience with D4 I've had good, sustained energy and have been able to have longer, stronger workouts. I'm taking 1 pill 2x/day, taking with a meal and full glass water. It hasn't given me a jittery feeling, though it has kept me up at night a bit. Timing is probably key. Only been on this for 1 week, so hard to know if it has any real "fat-burning" effects. Seems to increase metabolism, but also too soon to tell. Helps control my appetite, which makes it easier to eat right. Basically helps me stay on track with workouts/eating. Good product. Worth the price? I'll get back to you on that.
19 Mar 2008 - Catharine of Washington, USA writes:
This formula is very similaer to Xenadrine RFA was--a lot of the same ingredients, except this is without the Ephedra. Cellucor D4 makes me sweat buckets Though I havent noticed a surge in energy like other reviewers have, my workouts do seem to last a lot longer while taking it. Excellent supplement for workouts!
6 Mar 2008 - Janine of New Mexico, USA writes:
I've only been taking the product a couple of days. I take two pills in the morning and two pills mid-day.I have taken so many diet pills that they don't really have an effect on me anymore. However, I have noticed that these pills have given me some more energy. I am optimistic because I haven't felt this much energy from any previous pills that I have tried (since ephedra has been banned). Hopefully this will be the pill that works.
5 Mar 2008 - daniel of North Carolina, USA writes:
Myself and co-worker tried first pill today. Both of us experienced rapid heart rate.. over 5 hrs have gone by and still over 100 beats a minute. Energy levels are high and we feel like we could destroy anything.. Co worker experience increase body temps and dialated pupils. Also frequent urination. Im scared to try it again ..
19 Feb 2008 - ana of California, USA writes:
Okay u guys, I'm 19 i stand at 5'5" and weigh in at 150..So i was pretty desperate for something that would work. Mi little friend at the [] said this would give me mad energy and cut my cravings, unlike Alli, which made me hungrier and made my poo look like tubs of grease. Well today I took the 1st pill, and it feels like i drank 5 cups of coffee for breakfast, i havent eaten as much as i did yesterday because i feel full. I just hope i dont get a heart attack, cause i really feel like i could run 50 miles and fly over london bridge right now.
4 Feb 2008 - Roy of New Jersey, USA writes:
Really does work. I'm 17 and weighed about 184 on New Years. January 31, weighed in at 170 .. product does show results. I have lost fat , and people also tell me this . In cardio activities, I have great bursts of energy. Helps cut cravings also. I workout twice a week . and eat a healthy diet.
20 Oct 2007 - Jennifer of California, USA writes:
Yes it's true,yes I did change my diet and increased my work outs.Without D4 I truly think that I would not have reached my goal.So now I have set another and I feel that I can get there too.I only take half the dose 1 with breakfast and 1 with lunch. Any more than that and I think I could become to hyped up,and I suggest that you go with decaf.
19 Oct 2007 - Pascal of Ile de France, France writes:
I started using d4 thermal shock nearly 21/2 weeks ago. I thought it would be intersting to send a follow up. after this time, I still feel the rush of energy and haven't tried to reach the 4 pills a day recommended dosage. I stick to 1 in the morning and 2 before lunch : enough. more wouldn't be easy to deal with in terms of nervousness... is it burn fat ? yes. of efficient ? better than other product I tried before (see my recent review). beware : I wouldn't recommend this product to someone who's not used to powerfull fat burners. to sum up : the company claims are true : really working - as long as you stick to a clever diet. personnaly, I stick to a 3/4 days without carbohydrate (or only 50/60 grams breakfast) and carbs loading for 2 days (200 to 400g depending). confirming it's worth the invest.
11 Oct 2007 - Keisha of Michigan, USA writes:
yesterday I tool 1 pill in the morning- it controlled my cravings all day (and I get bad cravings)- I did not have the greedy desire to eat everything- I ate less. It gave me mad energy- after work I went to step aerobics, to the grocery store, to the shoe store, to a friends house, when I got home I cooked a pot of greens, a pot of beans, spaghetti, and 2 quick breads, went back out to the store again because I missed a few ingredients, then read some (I'm not going to eat all that food - I just like to cook for my family). Umm, I dont even think I slept at all that night. Today I took another pill to make sure I could get through the day. Appetite is controlled- cognitive abilities are good. I can feel my heart working harder. I dont want to risk any heart problems- so I wont take the pill anymore.
6 Oct 2007 - Pascal of Ile De France, France writes:
it does work. been trying stuff like hydroxycut hardcore, lipo 6 / extreme, and some more. this one outstand all of them. tremendous energy boost and same "shivering" effect than redline rtd. be sure to take less than the 4 pills a day, otherwise you should feel a little irritable and experience shortbreath (that happened to me taking 2 pills on an empty stomac...)
12 Dec 2006 - Sherry of Ohio, USA writes:
I've tried a lot of fatburners with miminal results. D4 Celluor works the best by far. I could not get rid of the mid section belly fat and dropped 1 pants size in one month. It does not make you feel jittery, controls your appetite and keeps you calm. It's worth the money!
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