Trust ProSource to fill all your supplement needs! Orders placed before 3pm EST ship same day. Want to speak to a customer representative? Our phones are open M-F 9-5. Click here for more information.


ProSource Searches the World for the Highest Grade, Purest Ingredients Available
Whether it's the robust quality of a German beer or the dependability of a Swiss timepiece, finding the best sometimes requires a global perspective; and the same applies to supplements. Unquestionably, effective nutritional supplements need a high level of purity and potency, which requires an exhaustive worldwide search if you want the highest-grade ingredients available. You might be surprised to learn that in a day's intake of ProSource supplements you're using tribulus from Bulgaria (AndroTest), creatine from Germany (Synthatrex Extreme), glutamine from Japan, and whey protein from the good old USA (NytroWhey protein line). At ProSource, no stone is left unturned in order to find the most advanced and best ingredients for optimum effectiveness and purity.

But how much difference can there be when it comes to creatines, whey proteins or tribulus? Aren't they all basically the same? You might be tempted to believe this, given some of the ad hype and questionable advice from certain gym rats. But you would be doing yourself a disservice if you gave in for the simple reason that lower grade supplements are just not as effective. This becomes a serious problem when you consider the fact that purity percentage in extracts can vary by as much as 50% or more and some creatines on the market can contain up to 5% impurities. The fact is, lower-grade compounds and extracts are simply not assimilated and utilized as well by the body as higher-grade compounds. If you had to choose only one method for selecting a product, virtually all experts in the field of supplementation would agree that it should be ingredient purity and potency. The bottom line is this: All the research and product development, fancy labeling and high-end marketing mean nothing without high-grade, pure ingredients.

Outsourcing for the Best: Think Globally

Finding the highest level of purity and potency for ingredients in a formula is no easy task and few supplement companies are up to the challenge. It takes time, money and exhaustive research to find the very best ingredients in a worldwide raw materials market. For 11 years now, ProSource has met this challenge, helping advance the industry towards more effective and innovative formulas by offering the purest and most potent ingredients available--and searching to the four corners of the world to get them. These top-grade ingredients make for top-grade products. So pack a bag and we'll take you on a quick trip around the world to check out the best, world class ingredients, powering products that have become customer favorites for their potency and effectiveness.

Creapure(AlzChem Trostberg GmbH, a wholly owned subsidiary of Degussa)

Contained in: ProSource Synthatrex Extreme, Synthatrex & ProSource Creatine Monohydrate

As sports supplements go, the only thing more important than protein is creatine. Unfortunately creatine is an easy compound to pass off as pure by some of the more unscrupulous companies, with some creatine monohydrates on the market containing up to 5% impurities. Degussa Creapure creatine monohydrate from Germany on the other hand is virtually free of impurities and HPLC certified as such. HPLC (high-pressure liquid chromatography) is a highly accurate method for evaluating the precise molecular profile of chemical substances. Through this process Creapure is certified to be 99.95% pure with any dangerous or unwanted substances such as creatinine (a byproduct of creatine that must be eliminated by the kidneys) undetectable or below the level of detection. Virtually 100% pure for safe and highly effective creatine monohydrate, this is creatine as it should be. Manufacturers who use Creapure in their products will indicate this on their label for good reason, it's the best.

      Creapure Company Info.

NytroWhey Precision Anabolic Matrix(ProSource Performance Products)

Contained in: ProSource NytroWhey

Next up is a trademarked protein blend that we didn't go too far to find. Exclusive to ProSource, this exceptionally anabolic matrix may perhaps be the single most important in the industry for its muscle synthesis and its role in ushering in a revolution in more advanced, muscle-building protein formulas. This cross flow micro/ultra-filtrated whey isolate is produced via a patented process to yield high amounts of critical growth factors including betalactoglobulin, alphalactoglobulin, glycomacropeptides, immunoglobulins, glutamine peptides and hydrolized whey peptides. The specialized cold filtration process employs a number of specific membranes in a sequence designed to retain an unusually high amount of bioactive, growth-rich peptides and micro-fractions to produce an exceptional anabolic whey isolate. The NytroWhey matrix goes well beyond any standard protein formula, offering the most anabolic and quickest-absorbing whey available.

      NytroWhey Precision Anabolic Matrix  Company Info.

Testofen (Gencor Pacific Group)

Contained in: ProSource AndroTest Extreme

Testofen is a trademarked fenugreek extract with very effective testosterone precursor ability due to its high levels of steroidal saponins, sapogenins and furolstanol saponins. It has been shown in clinical trials to increase free testosterone levels by 98.81% (after 8 weeks in healthy subjects) while decreasing skin fold thickness in thighs by up to 20.18% with no reduction in body weight, which suggests an improved ratio of lean mass to fat. These results were accomplished with 600 mg per day, an amount that can easily be incorporated into a testosterone formula. One of the more notable products utilizing Testofen, AndroTest Extreme, has shown a remarkable synergistic ability along with its high-grade tribulus and Long Jack.

      Testofen Company Info.

Svetol (Naturex)

Contained in: ProSource DopaLean

The new non-stimulating specialized extract Svetol has shown a unique ability for improving body composition, in one study demonstrating a 5.7% mean reduction in weight after 60 days and 4% increase in lean-to-fat-mass ratio compared to 1.5% in a placebo group. These are very impressive results but even more astounding when considering this is from a safe, non-stimulating ingredient. The prospects for this highly bioactive extract are extensive in the weight-loss supplement industry with so many stimulant-based compounds and extracts available and very few non-stimulant product options. Newly formulated DopaLean by ProSource is one of the first to contain Svetol and promises to be a top choice in the non-stimulant weight management category.

      Svetol Company Info.

Tonalin (Cognis Group)

Contained in: ProSource Tonalin CLA

One of the more popular supplements in recent years for its non-stimulating and effective weight-loss, CLA (conjugated linoleic acid) has been the subject of numerous clinical trials. CLA, some research suggests, may limit the amount of fat uptake into cells, which in turn keeps fat cells smaller. Other studies indicate it may also increase the body's ability to burn fat. When referencing study findings for a supplement choice it's important to use the compound or extract that most closely approximates the purity and potency of the one used in the study as there are of course many imitators looking to cash in on any recent positive research. The preferred brand for the more intensive CLA research has been Tonalin, a patented premium-grade CLA with an unprecedented 80% purity level, a highly potent amount for this natural compound. Some of the other purported benefits of Tonalin are enhanced muscle growth, improved lipid profiles (may lower cholesterol and triglycerides), diminished insulin resistance and immune system support.

      Tonalin Company Info.

Sharp PS (Enzymotec Ltd.)

Contained in: ProSource Aminodrol 

Sharp PS is a highly purified and potent compound of Phosphatidylserine, manufactured via the highest quality and safety standards of the food industry. In a number of studies Phosphatidylserine has been demonstrated to assist recovery, help prevent muscle soreness and improve well being. This amazing lipid has also shown the ability in test studies to diminish cortisol, a tissue-damaging protein that can play a major role in exercise induced catabolism (muscle breakdown). Lipids can be unstable compounds and susceptible to oxidation and impurities which is why the highest quality source is always preferable when choosing this type of supplement. Sharp PS complies with the quality management standard ISO 9001:2000 for research, development and production as well as food safety management system for production, making it a good choice for safe and serious anti-catabolic effect.

      Sharp PS Company Info.

7-Keto  (Humanetics Corp.)

Contained in: ProSource Super 7-Keto

Several clinical trials using this particular trademarked compound have demonstrated its remarkable ability for weight-loss and lean muscle sparing without stimulation. This in itself puts it on par with the best-weight loss ingredients. But to make it even better, since its introduction in 1998 there have been no serious side effects reported. Humanetics developed and has held a patent for 7-Keto since 1994 and companies using 7-Keto in their products (as well as other trademarked extracts and compounds) must enter a licensing agreement. This high-end compound is manufactured to very exact specifications under GMP (Good Manufacturing Practices) to ensure highest purity and potency. There have been a number of unfortunate cases where manufacturing of compounds such as this have led to detrimental substances that have had very serious public health consequences. Humanetics employs a 100% testing program involving independent laboratory analysis for certification of 14 different quality specifications to avoid any possibility of contamination. Clearly this is the top choice for a pure and effective source of 7-Keto.

      7-Keto Company Info.

PureWay-C (Innovation Labs)

Contained in: ProSource Super MegaMax

When choosing a vitamin C, it's usually an "any type will do" supplement for many. But the type of C compound you select can actually make a huge difference as far as its utilization in the body. PureWay-C is a new form of vitamin C containing C-lipid metabolites that studies have shown enhance the delivery, availability, absorption kinetics, distribution, uptake, concentration and utilization while also extending blood plasma and tissue retention of vitamin C. This patent-pending form of vitamin C has also been found to be associated with greater reduction of plasma levels of C-reactive protein (CRP) and oxidized cholesterol. It's produced by Innovation Labs, a research-oriented company that has an excellent reputation for quality, purity (and of course) innovation. Not your standard vitamin C, PureWay-C  takes the well-proven antioxidant power of this crucial nutrient to a whole new level.

      PureWay-C  Company Info.

Ultra Complete Spectrum Active Extracts (ProSource Performance Products)

Contained in: ProSource AndroTest  & AndroTest Extreme

This next trademarked ingredient is a ProSource exclusive; an extract matrix that most everyone will agree deserves inclusion in any best ingredients list. Without a doubt Tribulus terrestris products have the most widely varying purity level percentages of any extract on the market, with some as low as 1% bioactive constituents and others as high as 20% of the active compounds such as protodioscin (the most crucial element for testosterone enhancement). There is one extract matrix, however, that takes tribulus to a much higher level, with remarkable testosterone boosting (much like that experienced from the now banned prohormones). Ultra Complete Spectrum Active Extracts offers the most highly potent form of a special grade Bulgarian tribulus that is put through a painstaking series of 20 extractions yielding an unheard-of 40% protodioscin content and standardized to a minimum of 80% total saponins. The most amazing and unique aspect of this particular trademarked matrix is that it is the only T-booster on the market that has been validated in a landmark hospital study to increase free testosterone by as much as 275% (218% over baseline). Found in AndroTest and AndroTest Extreme, this highly effective compound remains the best natural test-booster available.

      Ultra Complete Spectrum Active Extracts Company Info.

Nexrutine (Nexrutine is a registered trademark of NPI, LLC)

Contained in: ProSource Joint Command

Nexrutine is a patent pending extract from the phellodendron plant developed by Next Pharmaceuticals which has shown an amazing ability to assist natural pain management from exercise and physical exertion. Several human trials involving Nexrutine have shown a consistent efficacy at easing soreness in joints and muscles compared to a placebo while also demonstrating a high level of safety when compared to anti-inflammatory over-the-counter drugs. The method of action for Nexrutine is its apparent ability to lower the effect of enzymes that cause inflammation along with other mechanisms that indirectly help control pain and soreness. Nexrutine's level of safety and clinically validated efficacy at managing soreness and muscle pain makes it the logical choice for top-grade athletic joint supplement formulas.

      Nexrutine Company Info.

Carnipure (Lonza, a Swiss life sciences company)

Contained in: ProSource Aminodrol

Carnipure is a highly specialized form of L-carnitine manufactured from a very unique fermentation production method which creates carnitine very similar to that found in nature. Lonza is currently the only manufacturer that uses this nature-simulated production method. The higher bioavailability makes it even more effective for all the benefits carnitine is known for, including exercise enhancement, recovery-and in this particular tartrate form-increasing androgen receptor sites for more efficient use of testosterone. Some of the other benefits Carnipure has been touted for include weight management, heart health and brain wellness.

      Carnipure Company Info.

Chromax (Nutrition 21)

Contained in: ProSource Chromium

For nearly ten years Chromax chromium picolinate has been the most researched and preferred form of chromium, used in more than 35 clinical trials involving over 2,300 patients. Chromax is highly bioactive and extremely well utilized by the body, which makes it particularly useful for insulin-resistant individuals as well as athletes and bodybuilders. The picolinate form of chromium is a unique bonding of chromium and picolinic acid (a compound found in breast milk which assists the absorption and uptake of chromium). With many inferior makes of chromium on the market (some so low in purity they have little or no effect at all on blood sugar levels) it's best to take a good look at any claims, professional uses and study info from the manufacturer. Its preferred use and verified study results make Chromax the best choice for highest efficacy and safety.

      Chromax Company Info.

Curcumin C3 Complex (Sabinsa Corp.)

Contained in: ProSource AX-12

There is a significant amount of clinical documentation on the antioxidant value of curcumin extract, with many researchers making reference to it as a "super antioxidant" and "bioprotectant," demonstrating a broad positive impact on many physiological processes in the body. The curcumin used in clinical research that showed these benefits though is limited to the higher potency extracts not easily available to the public. Fortunately, Curcumin C3 is available to consumers and has also shown this exceptional bio-availability and effectiveness in many high level clinical studies including those conducted by the UCLA School of Medicine, Brown University, Penn State and Tufts University School of Medicine, to name a few. The "C3" in Curcumin C3 represents three highly purified compounds known as curcuminoids in precise ratio for ultimate effectiveness. The fact that numerous study results on Curcumin C3 have validated its superior antioxidant ability is reason enough to place it as a front runner in this category. For the best results, it's good to look for the compounds that have the most positive clinical results, like Curcumin C3 from Sabinsa Corp.

      Curcumin C3 Complex Company Info.

AjiPure  (Ajinomoto)

Contained in: ProSource BCAAs, ProSource Glutamine & Mega Glutamine

The bottom line for any supplement ingredient is purity, and this is especially important with regard to amino acids, as the percentage of actual aminos compared to impurities can vary widely from brand to brand. The highest level of purity we've found is AjiPure, a highly purified premium-grade amino acid line from Ajinomoto that has a level of purity suitable for intravenous solutions, infant formulas and medical products-including prescription medications. The most important aspect of muscle growth is the amount of amino acids available for utilization. "The purer the better" is the maxim here, and AjiPure aminos are between 99% and 100% pure. Ajinomoto has produced amino acids since 1908 and since then has established a reputation as the premium amino acid manufacturer. They were the very first company to identify, refine and distribute amino acids and continue to lead the industry in research and development as well as world-wide sales. As far as premium-grade amino acid production goes, Ajinomoto invented the processing methods that other manufacturers rely on. If you're looking for the top of the line in aminos, no one comes close to the purity and quality of AjiPure amino acids from Ajinomoto.

      AjiPure Company Info.

Suntheanine (Taiyo International Inc.)

Contained in: Prosource L-Theanine

Suntheanine is a patented and purified form of L-theanine from Taiyo International Incorporated, which has shown positive results in numerous clinical trials since 1986. Theanine is the non-essential amino acid in green tea that creates that relaxed feeling. It does this by stimulating alpha waves in the brain, which produces a state of deep relaxation while at the same time maintaining a high level of alertness, very similar to the effects produced by meditation. L-theanine may also increase levels of the neurotransmitters dopamine and serotonin, both associated with enhanced mood. Along with this, some of the other benefits attributed to Suntheanine include improved quality of sleep, diminished normal symptoms of premenstrual syndrome (PMS), improved learning performance, heightened mental acuity, enhanced concentration, reduced negative side effects of caffeine, and improved immune system support. With all this positive clinical information to support it, along with its long-standing reputation, Suntheanine is the obvious choice for enjoying all the benefits of L-theanine.

      Suntheanine Company Info.

Purity Makes the Difference

As you can see from the examples above, pure ingredients from established and conscientious industry leaders will truly make a difference in the effectiveness of a supplement. When searching for your next product, look carefully at the label for ingredient details: purity percentages, sources, trademarks, etc. If information on the label is sketchy, it's a good idea to ask about the ingredients when purchasing. If none is available, it might be prudent to move on to a product with more comprehensive ingredient information. You'll find that the better the raw material used in manufacturing, the more positive results you'll see from your workouts. And as always at ProSource, you can ask to speak to a nutrition specialist to answer any of your questions regarding ingredient purity and potency.