Ultra Carnitine 3X™ SX-7® Black Onyx™ | GNC

MuscleTech™ Ultra Carnitine 3X™ SX-7® Black Onyx™


Item # 403729


Size: 120 Caplets

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Note: This product cannot be sold in Canada


Product Information


Advanced, Three-Phase L-Carnitine Formula + Weight Loss

Advanced, Scientifically Studied Weight Loss with C. Canephora Robusta*
Maximum-Dosed L-Carnitine Complex
Powerful Non-Stim Formula

Ultra Carnitine 3X™ SX-7® Black Onyx™ is a new, powerful weight loss plus L-carnitine formula from MuscleTech®. Ultra Carnitine 3X™ SX-7® Black OnyxTM delivers three different sources of L-carnitine combined with the scientifically studied key weight loss ingredient robusta coffee extract.*

Advanced, Scientifically Studied Weight Loss
Ultra Carnitine 3XTM SX-7® Black Onyx™ delivers the scientifically studied key weight loss ingredient robusta coffee extract, which has been shown in two separate scientific studies to deliver real weight loss.*

Featuring 3 Different Types of Carnitine
Ultra Carnitine 3X™ SX-7® Black OnyxTM features the three most popular forms of carnitine: L-carnitine L-tartrate, carnitine fumerate and acetyl-L-carnitine, in a powerful 1.7g dose. This advanced formula also includes grains of paradise, which supplies the compound 6-paradol. The combination of these different ingredients makes Ultra Carnitine 3X™ SX-7® Black Onyx™ a truly unique formula.*

Label (click image to enlarge)


Take 3 caplets with 8 oz. of water, 2 times daily, 30 to 60 minutes before your 2 largest meals of the day. Do not exceed 6 caplets in a 24-hour period. For best results, use for 60 days in combination with diet and training.


Not intended for use by persons under 18. Do not use if pregnant or nursing. Discontinue use and consult a medical doctor if you experience unusual symptoms. Consult a medical doctor before use if you have been treated for, or diagnosed with or have a family history of any medical condition, or if you are using any prescription or over-the-counter drug(s), including blood thinners. Consult a medical doctor before starting any diet or exercise program. Do not exceed recommended serving. Improper use of this product will not improve results and is not advised. Use only as directed. KEEP OUT OF REACH OF CHILDREN.

Other Ingredients

Microcrystalline Cellulose, Dicalcium Phosphate Dihydrate, Pregelatinized Starch, Stearic Acid, Coating (Titanium dioxide, Polyethylene glycol, Talc), Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide
Distributed by Iovate Health Sciences U.S.A.
Inc. 1105 North Market Street, Suite 1330,
Wilmington, DE 19801. Made in the U.S.A. from international ingredients.

Nutrition Facts

Serving Size  3 Caplets
Servings Per Container  40

Amount Per Serving     % DV

Vitamin B6 (as Pyridoxine HCl)  2 mg   **
Vitamin B12 (as Methylcobalamin)  6 mcg   **
Pantothenic Acid (as Calcium Pantothenate)  5 mg   **
L-carnitine (as L-carnitine tartrate, acetyl-L-carnitine and carnitine fumarate)  1.7 g   **
Robusta coffee extract (as C. canephora robusta)(bean) Standardized for 45% chlorogenic acids  200 mg   **
Grains of paradise (as Aframomum melegueta) (seed)  15 mg   **

** Daily Value (DV) not established.


4.8 / 5.0
37 Reviews
5 Stars
4 Stars
3 Stars
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1 Stars
Best on the Market
This along with the CLA by MuscleTech work great together. Important to note these aren't magic pills, those don't exist. You can't take these and do nothing else different and expect change, these are aids on top of a gym regimen to help you burn fat
October 14, 2017
Some composition changes over 4 weeks
October 14, 2017
Great results
First time I’ve tried a Carnitine product and I really like it. Stacked it with CLA and non-stim Hydroxycut and saw great results. Great appetite suppressant and energy support.
October 14, 2017
Love taking carnitine to help boost metabolism and increase energy levels throughout the day. Like this product from muscletech!
October 13, 2017
This is similar to the other black onyx products. If you look over the labels they all read almost exactly the same except for the title where you will see the major ingredient. Good addition to your diet.
October 13, 2017
Great weight loss product!
This is a great product. Not only does it have Carnitine but it has cla plus many other great ingredients. It boosted my energy and I lost a significant amount of fat.
October 13, 2017
Good for some weight loss
It being a non stimulant has helped in losing weight. No issues or problems with jitters or getting hot. Down a few lbs so far and liking it.
October 12, 2017
Worked very good Stacked with other products. Overall lost about 3 lbs
October 12, 2017
Amazing product!
I took this product in combination with SX-7 Black Onyx CLA and it worked really well! This helped me drop body fat as I am trying to build muscle mass. I was still able to gain strength while I saw a decrease in body fat. Really great product!
October 11, 2017
I just started adding this supplement into my regimen in addition to my Diet and cardio based workouts in order to lose more fat while still being able to gain muscle. I have not been disappointed because this product works and it has helped me get leaner in a short time.
October 11, 2017