close

Mass and Strength Builders

For bodybuilders looking to add serious size to their frame, in the form of lean muscle, of course, while minimizing fat gains, or any athlete looking to bulk up muscle mass, the popular solution is Mass Building supplements. These products are specifically formulated to help you pack on pounds of lean mass, which is why the mass-building category is one of the most crowded and fiercely competitive of all in today's sports supplement marketplace. When you think mass building, you probably think of creatine, a natural derivate of an amino acid produced in the body that supplies energy to muscles. Supplementing with creatine products, such as MHP's Dark Matter, BioQuest's MyoZene or ProSource's SynthaTrex Xtreme, helps you train harder before fatigue sets in while also hydrating muscle cells. Aside from creatine, mass-building products often contain additional branched chain amino acids (BCAAs), such as glutamine, beta alanine, taurine, tyrosine, tryptophan and leucine. Formulas for various fitness goals exist, including sugar-free to help keep your carb intake low or the inclusion of protein, carbohydrates, fat and electrolytes to make up an all-in-one powerhouse product. If your pursuit for more muscle seems never-ending, this mass-building supplement category is the answer you've been looking for.

Set Descending Direction

263 Results - VIEW ALL

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  1. NytroWhey Ultra Elite
    1
    Save 54% off retail

    Your Price $30.50

    Retail $65.95

    Select flavor

    9.6 out of 10 | 244 Review(s)
    NytroWhey Ultra Elite by ProSource The Most Advanced Muscle Building Protein on the Market Combines the Highest Quality Whey Isolate and Hydrolysate Proteins Available Contains Leuvon 590, Exclusive Anabolic-Activiating Leucine Bound Leucine Peptides (LBLP) Up to 4 Times the Leucine Content of Other Brands Provides Maximum Bioavailability of Amino Acids Utilizes Only Premium Quality American Made Proteins Unrivaled Taste and Texture Available in 7 Delicious Flavors, Including New Chocolate Chip Cookie Dough It's been a couple years now since the introduction of NytroWhey® Ultra Elite, and the response from bodybuilders across the nation has continued to be truly remarkable. Long-time fans of the NytroWhey line of premium proteins have been ecstatic over the purity and potency of the new matrix of muscle-growth agents incorporated into NytroWhey Ultra Elite. These proteins, formulated by Glanbia® Nutrition, the USA's foremost protein manufacturer, are far and away the biggest protein breakthrough the industry has seen since the appearance of original NytroWhey over a decade ago.NytroWhey's superiority over other proteins has always been unquestioned by those who know their science. Ever since NytroWhey Ultra Elite was introduced, and its host of dynamic, cutting-edge protein technologies experienced, the superiority gap has only grown wider. The foundation protein for this anabolic marvel is an ultimate premium-grade CFM whey isolate called Provon®, the highest quality whey isolate available industry-wide! The R&D team at ProSource has balanced this premium source of WPI with TherMAX®, a rapid action whey protein hydrolysate that provides instantaneous aminoacidemia (flooding of amino acids into the blood) upon ingestion, all the while maintaining blood amino acid levels for hours. NytroWhey Ultra Elite also contains a remarkable anabolic-activating ingredient called Leuvon 590, a leucine bound leucine peptide (LBLP), which provides leucine in a highly bioavailable form. Leucine, one of three branched chain amino acids (BCAAs), is primarily involved in turning on anabolism when ingested. With Leuvon added to NytroWhey Ultra Elite, this product boasts up to 4 times the leucine content of other whey protein products.Nearly as remarkable as its anabolic power, is NytroWhey Ultra Elite's truly incredible taste and texture. The NytroWhey line has long set the standard for taste in the protein category, and that tradition continues today with the release of the new Chocolate Chip Cookie Dough flavor. These innovations in taste, combined with the extraordinary muscle-building capabilities of its advanced protein sources, have all contributed to NytroWhey Ultra Elite's status as the industry's ultimate anabolic protein and our top seller. Read more about NytroWhey Ultra Elite: Non-Stop Growth Stacking for Starters Is Protein Thermogenic? Why NytroWhey Ultra Elite Really Can Super Charge Your Gains Ultra Elite Gains Live Large! Leucine and Nytro Whey Ultra Elite: Turning On The Light Switch to a Leaner, Bigger YOU Whey Leads the Way! The Best Protein for Building Muscle   * 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.
  2. ZMA
    2

    ZMA

    Item PSP118
    Save 52% off retail

    Your Price $9.50

    Retail $19.95

    Add to Cart

    9.2 out of 10 | 139 Review(s)
    ZMA by ProSource ProSource Brand ZMA T-booster contains100% SNAC System ZMA, the world's best Supports Free and Total Testosterone Levels Key Component in Overnight Muscle Recovery Significant Strength Gains Validated in Product-Specific University Testing Supports Sleep Efficiency Provides Valuable Support During Cold & Flu Season Synergistic with Other T-Boosting Supplements In an 8-week double blind, randomized clinical study, tests were conducted to determine the effects of ZMA on strength levels of college athletes. Among the results was a remarkable11.6% increase in strength compared to the placebo group (4.6% increase). The overall study findings showed that ZMA significantly increased strength and power in athletes. We hear a lot of athletes who ask, Aren't all ZMA formulas the same? The answer is a resounding no. ProSource's ZMA is an ultra-premium-grade complex that provides real results for those looking to increase testosterone, strength and vitality. This complex of zinc, magnesium and vitamin B-6 has been shown in university research to provide significant gains in college athletes. (See chart at right.) The World's Best ZMA ProSource ZMA is the same SNAC Systems formula used in that study. When it was time to add a maximally effective ZMA product to our ProSource line, we knew right where to go for the absolute-best, ultra-premium grade zinc-magnesium aspartate. SNAC (Scientific Nutrition for Advanced Conditioning) Systems has long been the leader in ZMA research and formulation. This should not be surprising given the fact that SNAC pioneered, formulated and introduced the very first ZMA product. In keeping with its research criteria, SNAC uses only the best zinc, magnesium aspartate and vitamin B6 in the exact ratios shown to be effective in clinical trials. It's important to note that many similar products out there are not the same studied SNAC System formula. A Powerful Synergy It should also be noted that zinc and magnesium each play important roles in optimizing performance and recovery. Strenuous physical exercise causes significant increases in the loss of zinc in the urine, and studies have shown that even small deficiencies in zinc can lead to reductions in testosterone production. There is also evidence that zinc has antioxidant activity, so it may help fight free radicals generated during exercise that can hinder recovery. Finally, there is evidence that zinc deficiency is related to under-production of insulin like growth factor 1 (IGF-1), a potent anabolic hormone. As for magnesium, a Western Washington University study indicated that subjects taking a magnesium supplement following a seven-week leg-training program increased their leg strength by 20% compared to those taking placebo. An Unrivaled Value As if this isn't enough, ZMA is also one of the most affordable T-boosters on the market. Though it doesn't have the unprecedented T-boosting power of an advanced technology like ProSource's AndroTest, it does have a great price, proven performance results and premium quality ingredients, so it's no wonder ZMA holds strong in this category. It works perfectly as a stand-alone or can be incorporated into other supplementation regimens for added effect. Combat zinc and magnesium deficiencies, help boost testosterone levels and increase your strength and growth potential with this immensely popular anabolic agent. Learn more about ZMA: Minerals And Strength-Power Athletes Pass the Test 3 Support Factors That Are Crucial to Your Physique Development Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart
  3. Creatine Monohydrate
    3
    Save 50% off retail

    Your Price $11.95

    Retail $23.95

    Select flavor

    9.6 out of 10 | 151 Review(s)
    Creatine Monohydrate by ProSource Contains 100%  Creapure® Creatine, the World's Purest, Most Potent German Creatine Monohydrate The introduction of creatine over 25 years ago represented a landmark moment for our industry. Few compounds since then have changed the sport of bodybuilding as dramatically as this remarkable mass builder. Yet, because of its popularity now as a must-have supplement, as well as the existence of fly-by-night companies out to make a quick buck, no other compound varies as widely in quality from brand to brand. Making the informed choice is critical to the success of your workout and supplementation regimen. Fortunately, clearing up the confusion over creatine is a relatively simple task. That's because there's really only one form of creatine that delivers the phenomenal increases in size, strength and power that this super-supplement has become famous for. It's AlzChem Creapure® Creatine Monohydrate. And it's available right here with ProSource!This premium Creatine is recognized by top researchers the world over as the superior premium-grade formula and the only Creatine that yields a true 100% purity level. Most other Creatines (domestic, Chinese, Austrian, etc.) are inferior imitations at best, chock full of impurities such as dihydrotriazine, creatinine, sodium, and dicyandiamide. Creapure® Creatine used in the ProSource brand is the purest, most potent form of creatine monohydrate you can find anywhere. This unequalled purity level, combined with its superior micro-crystalline consistency can mean greater absorption, greater cell volumization and greater gains in lean muscle growth than you can achieve with any other Creatine.Since the early days of our industry, hundreds of products and manufacturers have come and gone. Over that time, however, a handful of companies have distinguished themselves by doing the research, demanding only the best ingredients available worldwide and developing them into a premier line of performance supplements. ProSource was a major contributor to that movement then, and continues to lead the charge today. If you've already added ProSource Creatine to your workout regimen, then you know the difference premium quality can make. If not, find out for yourself. Make the informed choice and go with the industry leader: AlzChem Creapure® Creatine sold under the ProSource brand! Learn more about Creatine: Creatine: What Makes it the Best? Read Research Articles: Creatine And Beta-Alanine Combo Augments Strength And Lean Body Mass Creatine Supplementation Improves Muscle Power Creatine Supplementation Improves Muscle Energetics In Endurance Athletes Creatine Supplementation Also Beneficial When You Are Not Training Creatine For Women Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart   Balsom P. et al. Creatine in humans with special reference to creatine supplementation. Sports Med (18)4: 268-280, 1994.Greenhaff P, et al. Influence of oral creatine supplementation on muscle torque during repeated bouts of maximal voluntary contraction in man. Clin. Sci. 84:565-571, 1995 Volek, J.S. et al. Creatine Supplementation: its effect on human muscular performance and body composition. Journal of Strength and Conditioning Research, Vol. 10, no. 3, 1996.  
  4. MyoZene
    4

    MyoZene

    Item BQT005
    Save 38% off retail

    Your Price $42.95

    Retail $68.95

    Select flavor

    9.5 out of 10 | 251 Review(s)
    MyoZene Post-workout Muscle Builder Made with   MyoZene is a "rapid action" protein derived from an advanced, cutting-edge protein source that undergoes an extensive hydrolysis yielding extremely low molecular-weight di- and tri-peptides that are absorbed directly into the blood stream, foregoing digestion and therefore capable of being more directly utilized for muscle synthesis. Added to this is an infusion of L-leucine to trigger further anabolic response, plus creatine and L-glutamine. The results of this revolutionary formula have generated uniformly enthusiatic consumer response. And the customer feedback on this anabolic powerhouse is still coming in loud and clear, years after the initial breakout success of this best-in-class mass builder. At that time we were in awe of the amazing results MyoZene could produce, and more amazed by the short amount of time it took to see these results, in some cases just 7 days to start noticing significant muscle gain. But this is only part of the story. Once a large number of bodybuilders saw what it could do, the demand for MyoZene was overwhelming, with reports of size gains unlike anything seen with standard whey proteins. With all these consumer accolades, there was no doubt that MyoZene was the next evolutionary step in-post workout formulations. The powerful efficacy of MyoZene's protein hydrolysate technology has also been scientifically documented in a product-specific clinical study. In this remarkable study, presented at the prestigious American College of Sports Medicine Annual Conference in 2008, normal well-experienced weight lifters underwent upper- and lower-body strength testing and body composition analysis, followed by a six-day-per-week split-body-part exercise routine. Test measurements included muscular strength/endurance and key markers of special interest to athletics coaches. Within the test's time frame (one month), the MyoZene-receiving subject group gained 24% to 32% strength/muscular endurance. This is remarkable especially when considering that creatine ingestion or protein alone have resulted in considerably less strength, muscle, and endurance gains in previous studies of those compounds. The MyoZene-drinking subjects (ingesting one serving within 45 minutes of finishing the exercise session) also experienced truly extraordinary gains in lean muscle within just four weeks, and at the same time actually reduced some fat too. Rarely, if ever, has a nutritional technology yielded such power to produce measurable increases in lean muscle in such a short time period. Overwhelming response from bodybuilders, scientific validation and extreme customer loyalty; these are the earmarks of a superior mass-gainer. If you're looking for the best post-workout muscle builder you can get, you need look no further than MyoZene.                             1 Lou L, Kalman D, Feldman S, Krieger DR. An Open Label Clinical Trial Evaluating the Effects of MyoZene with Resistance Training on Changes in Body Composition and Muscle Strength. 55th  American College of Sports Medicine Annual Conference. Med Sci Sports Exer  2008; 40(5): S98; 939.       Click to learn more about Myozene: MYOZENE: The Most Powerful Muscle-Building Agent Ever Created? MyoZene User Testimonials Creatine: What Makes it the Best? Landmark MyoZene Clinical Study Documents Remarkable 26% to 32% Strength Increases Over Baseline in 4 Weeks Search for the Ultimate Post-Exercise Bodybuilding Supplements: the Anabolic Edge For the Ultimate Protein Value, Quality Beats Quantity    
  5. AndroTest
    5

    AndroTest

    Item PSP059
    Save 42% off retail

    Your Price $46.50

    Retail $79.95

    Add to Cart

    9.3 out of 10 | 75 Review(s)
    With AndroTest, the ProSource research and development team has ushered in a new modern era of T-boosting science. What separates AndroTest from every other T-booster out there is its superior degree of standardization. AndroTest’s key ingredient, a full-spectrum protodioscin-rich botanical super-compound, is synthesized via a painstaking refinement method that can include up to 20 separate extractions. The result is the first T-booster ever standardized for a minimum of 40% protodioscin levels. Research has established that protodioscin is the primary catalyst responsible for helping to enhance the production of luteinizing hormone (LH), which in turn, helps raise testosterone levels in the body. What’s more, this superior-grade driver of testosterone support is also standardized for a minimum of 60% furastanol saponins and 80% total saponins content, yielding the most potent and complete spectrum of active T-boosting components in existence. Given this due diligence in standardization and manufacturing protocols, it should come as no surprise that AndroTest has made headlines in the realm of independent clinical research. In a randomized, placebo-controlled, double blind clinical study, AndroTest produced statistically significant increases in total testosterone levels, averaging 59.88% over baseline, with some subjects showing total increases as high as 275% over baseline. And major increases in free testosterone, averaging 59.75% over baseline, with some subjects reaching up to 218% over baseline. This means that some subjects using AndroTest experienced nearly a three-fold increase in testosterone levels. Equally impressive is the fact that the increased testosterone levels (after two weeks use) were observed throughout the measurement points of the study, which is especially important since sustained increases in testosterone are the key to enhancing muscle growth. When it comes to driving natural T-level increases that serve as the solid foundation for soaring power, strength, aggression and libido, there’s simply no viable alternative than the one and only, clinical strength AndroTest.*Not Available In California More about AndroTest: Get the Alpha Male Advantage Man Up! Exciting Scientific Breakthroughs Usher in a New Era in Natural Testosterone Enhancement See Androtest in the Press! New Landmark Clinical Study Proves The Extraordinary Test-Boosting Power Of Androtest Tribulus: A Real Anabolic Alternative Muscle Building And The Quest For Test Eurycoma Longifolia: The Longjack Herb -- Long On Benefits Advanced Testosterone Science Estrogenic Foods - Not For Real Men?
  6. Glutamine Powder
    6

    Glutamine Powder

    Item PSP003
    Save 63% off retail

    Your Price $18.50

    Retail $49.95

    Add to Cart

    9.6 out of 10 | 73 Review(s)
    Glutamine Powder Bodybuilding's Most Valuable Amino Acid   Athletes who neglect their intramuscular glutamine levels do themselves a grave disservice. L-Glutamine is the most important component of muscle protein, and a key nutrient for muscle repair and growth. That's why supplementation with ProSource's free-form Glutamine --both before and after working out--is an indispensable component of the serious athlete's bodybuilding regimen.Recent research also reveals that Glutamine's value goes beyond enhanced muscle recovery and repair. In fact, one landmark study has reported that L-glutamine supplementation can increase body weight, body cell mass, and intracellular water in a manner not unlike Creatine monohydrate.(2) Finally, clinical research suggests that glutamine is essential for maintaining intestinal function, immune response, and amino acid homeostasis during periods of severe stress (such as intense exercise).(3) ProSource Glutamine --available in powder or convenient capsule form. 1) T.C. Welbourne, Increased Plasma Bicarbonate and Growth Hormone after an oral Glutamine Load. American Journal of Clinical Nutrition 61.5 (1995): 1058-1061.2) Shabert, Nutrition, 1999; Nov.-Dec.; 15 (11-12):860-4.3) Sacks, GS. Ann Pharmacother. 1999 Mar;33(3):348-54. Read Super Feature Article: Ultimate Guide for Amino Acids: Your Best Choice For Optimum Health, Growth, Energy And Focus. GLUTAMINE: Or should we call it GlutaGreat?by Douglas S. Kalman MS, RD GLUTAMINE (L-Glutamine)- Supplement Superstar!by Jim Wright, PhD Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart
  7. TribuTest
    7

    TribuTest

    Item PSP117
    Save 50% off retail

    Your Price $12.95

    Retail $25.95

    Add to Cart

    9.1 out of 10 | 73 Review(s)
    TribuTestPotent Tribulus terrestris extract for high-quality T-boosting power When searching for a quality T-booster at an economical price it is highly recommended that it be an extract of Tribulus terrestris from Bulgaria, and, that it be a ProSource product to ensure optimum quality and efficacy. This is particularly important since there is such a wide disparity that exists among supplements in this category. Fortunately, ProSource TribuTest takes the guesswork out of the equation by providing a powerful and ultra-pure product that supplies 1000 mg of genuine Bulgarian Tribulus extract. Tribulus from Bulgaria has been documented to yield significantly higher potencies and powerful saponins not found in tribulus from other parts of the world. TribuTest is specially processed to yield a highly bioactive standardized extract (40% minimum steroidal saponins). The only tribulus products we've seen that offer higher value are the AndroTest formulations, which dominate this category, and for very good reason. For those athletes on a tighter budget, however, TribuTest is a potent and praiseworthy alternative. Benefits of TribuTest: 1000 Mg High-Grade Bulgarian Tribulus Terrestris Highest Potency In Its Price Range Standardized for 40% Total Saponins Ultra-Pure Quality Extract Learn more about T-Boosters: Tribulus: A Real Anabolic Alternative  Muscle Building And The Quest For Test Advanced Testosterone Science Estrogenic Foods - Not For Real Men? Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart  
  8. Tonalin CLA
    8

    Tonalin CLA

    Item PSP103
    Save 46% off retail

    Your Price $13.95

    Retail $25.95

    Out of stock

    9 out of 10 | 33 Review(s)
    CLA (Conjugated linoleic acid)Premium-Quality Anti-Fat Supplement Conjugated linoleic acid (CLA) has been linked to increases in muscle mass and fat utilization. New ProSource Tonalin CLA is a highly potent and pure premium-grade material that's standardized for an unprecedented 80% Tonalin CLA. This premium quality product is perfect for those who are overly sensitive to stimulants, or for those seeking a transformational agent to work synergistically with stimulant-based thermogenics. Take the guesswork out of your weightloss regimen with Tonalin CLA. Conjugated linoleic acid (CLA) is used to support: Metabolic rate Reduction of abdominal fat Muscle growth Cholesterol and triglycerides Insulin resistance Immune system Learn more about CLA: Get a Jump On Your Best Body Ever with These 8 Quick Fat-Loss Tips You Can Use Today Never miss a workout by incorporating these ten antioxidants into your nutrition regimenRead Research Articles: Combination Of Cla And Exercise Leads To Decreased Body Fat And Increased Lean Mass CLA Simultaneously Builds Muscle And Promotes Fat Loss CLA Sheds Body Fat CLA Supplementation Diverts Fat Away From Adipose Tissue CLA Supplementation Build Lean Body Mass  Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart
  9. DopaTech-HGH
    9

    DopaTech-HGH

    Item PSP051
    Save 49% off retail

    Your Price $22.95

    Retail $44.95

    Add to Cart

    9.6 out of 10 | 70 Review(s)
    DopaTech-HGHMost Potent Source of L-Dopa! The product development team at ProSource has done their homework once again by researching and formulating this cutting edge supplement. DopaTech delivers the highest-quality and most potent extract of the vaunted Mucuna pruriens, standardized for a remarkable 15% L-Dopa. Its precision-targeted biological action can provide support for restored vitality and even mood enhancement. Mucuna pruriens has proven to be something of a wonder nutrient of late. A recent study has shown that Mucuna pruriens cotyledon powder treatment significantly restored the endogenous levodopa, dopamine, norepinephrine and serotonin content in the brain.(1) Another key study showed that Mucuna pruriens exerts antioxidant benefits, specifically that it has an antilipid peroxidation property, which is mediated through the removal of superoxides and hydroxyl radicals(2). In other words, the in depth science behind this compound is significantly impressive at multiple levels. The more you research and understand this compound and product, the more of an edge you are sure to gain.Maintain youthful vitality and maximize your performance in and out of the gym with DopaTech-HGH, the most potent and productive product of its kind. 1. Manyam BV, Dhanasekaran M, Hare TA. Neuroprotective effects of the anti-Parkinson drug Mucuna pruriens. Phytother Res. 2004 Sep;18(9):706-12. 2. Tripathi YB, Upadhyay AK. Effect of the alcohol extract of the seeds of Mucuna pruriens on the free radicals and oxidative stress in albino rats. Phytother Res. 2002 Sep;16(6):534-8. Learn more about the key ingredients in DopaTech: The New "GH Culture" in Pro Sports and the Emergence of Advanced Technologies for Natural Stimulus of GH Production  Mucuna Pruriens: Dopaminergic Dynamo   Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart  
  10. L-Arginine
    10

    L-Arginine

    Item PSP110
    Save 54% off retail

    Your Price $6.95

    Retail $14.95

    Add to Cart

    9.4 out of 10 | 13 Review(s)
    L-ArgininePowerful Nitric Oxide Potentiator! L-arginine is a potentiator of nitric oxide (NO), the compound that promotes the pump and fullness in muscle tissue, vasodilation, and blood flow. By virtue of its effects on blood flow, L-arginine also has the ability to favorably effect male sexual health. ProSource L-Arginine contains only maximum-efficacy, 100% pure, premium-grade amino acid content. Learn More about L-Arginine: Oral Arginine Is Absorbed In Healthy Subject Amino Acids: the Ultimate Guide to Amino Acid Supplementation. Get L-Arg And In Charge! Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart

Set Descending Direction

263 Results - VIEW ALL

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5