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From the Underground comes one of the meanest, most powerful, lean muscle generating proteins to ever surface. Muscle Infusion Black! This daring formula is a unique blend of seven multi-functional protein fractions, each with a different absorption rate and distinct sequence of highly anabolic amino acids. This powerful protein blend is fast acting yet long lasting. It triggers a quick anabolic onslaught followed by sustained muscle feeding activities. Upon ingestion, its multi-layered protein fractions go straight to work. They continue to do so for hours, feeding your muscles with highly anabolic and readily available amino acids.
To further enhance the muscle feeding properties of Muscle Infusion Black, this wicked formula contains large amounts of BCAAs and Glutamine. Special enzymes have been added to assist your body in absorbing the massive amounts of protein required to get big. Each serving is packed with a comprehensive spectrum of critical vitamins and minerals to assure an efficient turnover rate from nutritional protein into human muscle protein. To get you on the fast track for building bigger muscles, Muscle Infusion Black comes with very low carbs and fats. Carbs and fats do not build muscle; therefore they have no business in a powerful underground protein formula. Leave it to ordinary protein supplements to be loaded with useless and waist-expanding fillers.
To get big you need the right protein. Protein is the building block of muscle. Your body builds muscle mainly out of protein. An ordinary protein supplement may only give you ordinary results. What you need is a protein that is designed for the serious athlete who means business in the gym: Muscle Infusion Black…Your ideal protein choice from the UNDERGROUND!
- 7 Protein Super Blend utilizing the highest quality protein sources with varying absorption rates for fast and long-lasting effects.
- 25 grams of anabolic and bioactive protein along with minimal fats and carbohydrates in just one scoop!
- Contains our Digesting Enzyme Dual-Stimulator which consists of a precise blend of Aminogen® and Lactase for superior protein absorption and assimilation.
- Instantized protein fractions resulting in incredible taste, consistency and digestibility.
- Contains high levels of anabolic/anti-catabolic Glutamine and BCAAs.
- Enriched with a comprehensive vitamin and mineral blend to further optimize physical performance.
- Available in three amazing flavors: Chocolate Monster, Cookie Madness and Vanilla Villain.
Ultra-Filtered Instantized Whey Protein Concentrate
A highly Bio-available whey protein that utilizes a high-tech cold manufacturing process with ceramic filters. These ceramic filters remove the fat and lactose isolating the protein without damaging it.
Micro-Filtered Instantized Whey Protein Isolate
This is the purest and most bio-available protein which yields a minimum of 94 grams of whey per 100 grams of protein. This particular form of whey also contains large amounts of Glutamine and BCAA's as well as immunoglobulin's, alpha-lactalbumin, and beta-lacto albumin which are all crucial as immune boosting agents.
Instantized & Hydrolyzed Whey Protein
Hydrolyzed whey is the fastest and most digestible source of protein which is created by using enzymes to "pre-digest", or cut the whey protein into small chunks referred to as peptides. This process of hydrolysis allows up to 80% of the protein to bypass the stomach and be absorbed into the small intestine, allowing the greatest potential for lean muscle tissue. Studies have shown that Hydrolyzed Whey also helps to increase IGF-1, which works closely with Human Growth Hormone in increasing muscle tissue.
Instantized Egg Albumin
Considered nature's most perfect and complete form of protein as it provides all the essential and nonessential amino acids for maximum absorption and assimilation. Egg Albumin is digested slower than whey but faster than casein, acting as a bridge filling in the gaps between the two.
Istantized Micellar Casein
An extremely slow digesting and rich protein source that continues to feed your muscles long after whey proteins have passed through the blood stream. In fact, studies with this un-denatured form of isolated casein protein have demonstrated it to sustain steady amino acid elevations for up to seven hours. It was shown to offer a strong anti-catabolic effect in comparison to faster acting whey proteins. This form of protein supports a longer more sustained positive nitrogen balance compared to other forms of protein.
Istantized Milk Protein Isolate
Contains a mixture of all the protein found in milk (whey and caseins). This type of protein is quite good due to its strong amino acid composition derived from both its whey and casein components. MilkProtein Isolate is second only to pure whey on the biological value scale and has a combination of a relatively fast and slow absorption rate due to the sequence of whey and casein components.
Instantized Calcium Caseinate
This protein is derived from fresh skim milk and is composed of 92% protein. Calcium Caseinate is ideal protein shakes because it adds a thick and creamy consistency. In regards to absorption, calcium caseinate is slow digesting which allows for a sustained and constant flow of amino acids in the bloodstream.
† All proteins contained in the Muscle Infusion blend are instantized. When a protein is instantized, the particles of protein powder are greatly reduced allowing them to mix into a solution easier. This is ideal for individuals who use shaker cups.
As individuals vary so may results from using this product.
Do you have questions about this product?(earn points for answers!)
get answers from real customers and in-house experts with AnswerBox.
Q:
I m just starting the exercice is it right product to take(nutrex mucsel infusion).
Is it help to reduce fat and buildup muscels?Asked on 4/29/2013 by Pankaj1 answer
A:
Muscle Infusion isn't specifically designed to burn fat although when taken along with a proper diet and exercise routine, it can be help. While trying to burn fat it is crucial that you consume a high quality protein source throughout the day to keep your metabolism elevated, maintain lean muscle and aid in muscle recovery. Muscle Infusion is perfect for this! If your goal is weight loss, I would recommend taking a look at one of our Lipo-6 formulas. These formulas are specifically designed to help speed up and aid in weight loss. When you have a moment, take a look at our customer review section on our website which will show you what type of benefits you can expect off them. Muscle Infusion is the only protein powder we have available.Answered on 4/30/2013 by Nutrex from Oviedo, FL
Q:
Hello. I am not fat nor skinny. Have normal stature. However, my face eh fat with fat in the cheek and neck have a little belly. I am sedentary 10 years. I want to lose belly fat, set the abdomen and lose fat face. After working out fully intend to define the entire body. I'm in doubt which supplements should I buy. My idea is make swimming, using 1 pill Lipo 6 Black UC per day 30 mins before swimming for a month along take Muscle Infusion Black after swimming. After one month, suspend Lipo 6 Black UC and sibstituir by the Hemo-Rage and continue taking the Muscle Infusion Black .. and beyond the swimming, start working out in the gym, along with swimming. This is a rather good option?
I have also another doubt .. in Muscle Infusion Black Protein has no beef. Can I merge the Muscle Infusion Black with a product from another brand that contains protein of beef? How should I use them? Thanks.Asked on 4/29/2013 by R from Br1 answer
A:
Your diet and exercise routine will be the key to achieving your goal while taking Lipo-6 Black UC and Muscle Infusion. Take a look at our Deadline Diet page which can act as a very effective reference tool on what a clean diet and exercise routine should consist of. If you follow something even similar to this while taking Lipo-6 Black UC you should receive great results. http://www.nutrex.com/articles/nutrition/
Also, to receive the full benefits off Lipo-6 Black UC, we recommend taking two servings daily. Your first serving is recommended to be taken on an empty stomach prior to breakfast, your second serving should be taken 5-6 hours later prior to a meal. On days you exercise, you can take one of the servings prior to your workout. If you have reached your weight loss goal after 1 month you can switch to the HemoRage UC, however, if you have not reached your goal, I would recommend sticking with the Lipo-6 Black UC. Muscle Infusion utilizes a unique blend of protein derived from both milk and eggs that contains a high amount of amino acids your muscles need for recovery and growth. There is no issue adding protein from beef with Muscle Infusion, although it wouldn't be necessary.Answered on 4/30/2013 by Nutrex from Oviedo, FL
Q:
I just bought T-Up Black, Volu-Gro, Hemo-Rage, Muscle infusion Black and Lipo 6 Black. I also take a multi vitamin. My intention is to lose belly fat while building lean muscle. I used to work out and now I am getting back into it. My intention is to use HemoRage for a Preworkout and Volu-gro for the post work out, and the Muscle infusion for the all around protein during the day. I am looking for some direction however on when I should take the t-up and lipo-6 during the day and I want to know if it is ok to stack these all together to get the best benefit, and how to schedule it.
Thanks, Lucio.Asked on 4/18/2013 by Lucio_RR from Ontario, Canada1 answer
A:
Yes, there is no issue stacking T-UP, Volu-Gro Hemo-Rage UC, Muscle Infusion and Lipo-6 Black. However, we do not recommend taking the HemoRage UC and The Lipo-6 Black at the same time although you should have no issues taking them in the same day. On non-training days take 1 serving (3 capsules) of Lipo-6 Black 30 minutes prior to breakfast and your second serving (3 capsules) 5-6 hours later prior to a meal. On days you train, you can substitute one of the servings with HemoRage UC prior to your workout. Also, make sure to separate your servings by at least 5 hours apart. To receive the full benefits off T-UP it is best taken on an empty stomach, between meals. As long as you stay consistent with your doses and follow a proper diet and training routine, you will receive the full benefits from it.Answered on 4/19/2013 by Nutrex from Oviedo, FL
Q:
i want to know about bcaa content of this protien powder..would i need to have additional bcaa with this powder...i take 2-3 scoops of it every dayAsked on 4/17/2013 by vikki1 answer
A:
Hello Vicki,
The BCAA content is naturally occuring in the proteins found in the formula. The BCAA content in Hydrolyzed and Whey isolate are high so the product does not need to be fortified with additional BCAA's. Therefore I do not have the exact amount contained in a serving of Muscle Infusion.Answered on 4/17/2013 by Nutrex from Oviedo, FL
Q:
is this fine if i take 2scoops before go to bed?Asked on 4/11/2013 by robert from sacramento ca1 answer
A:
Yes, Muscle Infusion can be taken prior to bed to avoid entering a catabolic state while sleeping and aid in muscle recovery and lean muscle growth.Answered on 4/12/2013 by Nutrex from Oviedo, FL
Q:
Is muscle infusion best taken before workout or after workout?Asked on 4/10/2013 by Sam1 answer
A:
Muscle Infusion can be used anytime throughout the day when you need protein. It is great to add to breakfast, to use as a meal replacement, post workout and\/or also before bed to help to avoid entering a catabolic state while you sleep. To gain lean muscle, I would suggest consuming around 1 gram of protein per pound of body weight. This can be accomplished through food sources and from supplementing with Muscle Infusion throughout the day.Answered on 4/10/2013 by Nutrex from Oviedo, FL
Q:
Hi,
I'm currently on Lipo 6 (2nd week). I would like to take muscle infusion to help fat loss while maintaining my muscle. Does this product free from animal products?
Thanks!Asked on 4/6/2013 by saiga from Malaysia1 answer
A:
Muscle Infusion contains a blend of 7 different proteins. All of the proteins in the formula are derived from dairy sources such as milk and eggs which of course are all from animal sources. Besides the protein sources there are no additional ingredients derived from animal sources in Muscle Infusion.Answered on 4/8/2013 by Nutrex from Oviedo, FL
Q:
May i know the type of lecithin in this product?Asked on 3/20/2013 by eyeballtz from malaysia1 answer
A:
The lecithin in Muscle Infusion is derived from soy.Answered on 3/20/2013 by Nutrex from Oviedo, FL
Q:
hi nutrex.
my name is azaan,i have an average body.i hv been takng this protien muscle infusion black from 1month,n i saw a big difference.
my weight is 68.
my height is 6'1.
so i wnt to knw that how many containers of muscle infusion black i will b needng to build a good body?Asked on 3/14/2013 by azu from nashik,india.1 answer
A:
Everyone is different and builds muscle at different rates, it really depends on your diet, training and genetics on how quickly you can build muscle. Protein is the building block of muscles and is needed in your diet if you want to build muscle. You don't necessarily need a protein supplement like Muscle Infusion IF you are consuming enough protein in your foods. The problem is that it is very difficult to do. The reason it is difficult is because you should be consuming at least a gram of protein per pound of body weight. So for a 200lb man, he should eat at least 200 grams of protein per day if he is active and trying to build muscle. Having a high quality protein supplement like Muscle Infusion makes it easier to achieve this and can continuously be taken to help you meet your daily protein requirements.Answered on 3/14/2013 by Nutrex from Oviedo, FL
Q:
can i stack it with musclepharm assault?Asked on 3/10/2013 by d16361 answer
A:
Yes, there is no issue taking a preworkout product with Muscle Infusion. Once you finish your current preworkout product, I would suggest taking a look at HemoRage UC. It is a very popular and effective preworkout designed to help intensify your training, increase focus, decrease fatigue and provide greater muscle pumps while you train. Take a look at our customer reviews to see what type of benefits you can receive off it. http://underground.nutrex.com/products/hemo-rageUC.aspAnswered on 3/11/2013 by Nutrex from Oviedo, FL
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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.
Tell Us What You Think!
Average Customer Rating
REVIEW SNAPSHOT®
by PowerReviewsPros
- Tastes good / tastes fine (66)
- Effective (62)
- Easy to mix (60)
- Easy to swallow (55)
- Good value (51)
Cons
- Hard to mix (7)
- Price (4)
- Pricey / poor value (4)
- Bad flavor (3)
- Chalky consistency (3)
Best Uses
- Daily use (58)
- For workouts (46)
- Dietary replacement (27)
- Post workout (17)
- Before bed (16)
- Reviewer Profile:
- Competitive athlete (32), Weekend warrior (10), Runner (7), Bodybuilder (3), Gym rat (3)
REVIEWS
Reviewed by 175 customers
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Displaying reviews 1-10
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Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Good Value
- Shortens Recovery Time
- Tastes Good
Cons
Best Uses
- Before bed
- Daily Use
- Dietary Replacement
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
This is a great product. It tastes awesome, mixes well, and keeps me satisfied as a meal replacement. It is a very cost effective and high quality supplement.
Pros
- Effective
- Good protein blend
- No Soy
- Shortens Recovery Time
- Tastes Good
Cons
- Hard to Mix
Best Uses
- Daily Use
- Dietary Replacement
- For Workouts
- Meal replacement
Reviews about Nutrex Research Muscle Infusion:
I received this as one of the facebook daily giveaways.
This is my first use of a manufactured blended protein. Before I have been mixing my own from separate whey, casein, etc. I love the fact that there is no carginogenic, estrogenic soy products in this. If you see soy turn and run as far away as possible!
Contrary to the directions, I always mix this in milk. To me it tastes better and the lactose is important for post workout glycogen supply. My first shake I made the mistake of using a full sized (Optimum Nutrition) protein shaker and filling it up. One scoop adequately falvored the entire 30+oz shake, but unlike whey or casein this stuff fills you up FAST. The blend of protein makes this a very hearty product. Follow the instructions and only do the 10oz or so. It will fill you up and tastes great and is easy to drink.
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Shortens Recovery Time
- Tastes Good
Cons
Best Uses
- Daily Use
- Dietary Replacement
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
This proteing is highly competitve with many other proteins on the market. The only thing that they could add to the product that other companies have added is some form of BCCA chain. Other than that it is a perfect protein for whenever you have to use it, post, pre-, or meal replacement.
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Good Value
- Mixes Amazingly Well
- Shortens Recovery Time
- Tastes Good
Cons
- None
Best Uses
- After Training
- Daily Use
- For Workouts
- Morning shake
Reviews about Nutrex Research Muscle Infusion:
I use this product twice daily, first thing in the morning to promote recovery throughout the day, and then after training. it mixes brilliantly, tastes amazing, and the consistence y is perfect, its not too thick and its not too thin. I would definitely use Nutrex Research Muscle Infusion again.
I won my first tub of this product via the Nutrex Facebook page, and I am glad I had the opportunity to try it, it has definitely pushed me in the right direction, my muscles seem to be recovering quicker, and I don't get the urge to make a trip to the toilet after using this either !
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Good Value
- Shortens Recovery Time
- Tastes Good
Cons
Best Uses
- Daily Use
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
I've used different products. Some worked. Some didn't. What I used before muscle infusion wasn't working. I'm 3 weeks in on using this stuff and already noticing less bodyfat and more muscle and strength. I'll keep buying this stuff as long as its available.
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Shortens Recovery Time
- Tastes Good
Cons
- None
- Running Out
Best Uses
- Daily Use
- Dietary Replacement
- Everyday All Day
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
just follow the directions and you cant go wrong
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Good Value
- Tastes Good
Cons
Best Uses
- Daily Use
Reviews about Nutrex Research Muscle Infusion:
Been wanting to try Muscle Infusion for a very long time, and finally decided it was time to buy a tub. OMG!!! The stuff was AMAZING! Great chocolaty taste, and very easy to mix. Goes down smooth with none of that chalky aftertaste. I am about to order a couple of 5 lb tubs in the next couple of days. I will not buy any other protein ever again!
Pros
- Easy To Mix
- Easy To Swallow
- Effective
- Good Value
- Shortens Recovery Time
- Tastes Good
Cons
- Pricey / Poor Value
Best Uses
- Daily Use
Reviews about Nutrex Research Muscle Infusion:
Great protein overall, been using it on a daily basis, the only downside i can think of for me thats living in Sweden is the hefty prices on supplements, a tub of black infusion 5 lbs cost me approximately 85-90 USD wich makes it pretty expensive in the long run.
However i would still recommend this product to anyone looking for a quality blend protein mix.
Pros
- Easy To Mix
- Good Value
Cons
Best Uses
- Daily Use
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
Use it three times a day in addition to lean meats. Good value and tastes ok. Blends well in blender bottle cups. Look forward to trying Nutrex other products. Just ordered hemo rage, defy and volugrow.
Pros
- Easy To Mix
- Shortens Recovery Time
- Tastes Good
Cons
Best Uses
- Daily Use
- For Workouts
Reviews about Nutrex Research Muscle Infusion:
I like this product. I like to use it 30 minutes after my workout and before bed. Not easy on the stomach when taken before bed though. Great to use as a mix with bananas, raw eggs, and flax seed.










Merchant response: Thank you for the review!