Estrogen and testosterone, the two major hormones in men (testosterone) and women (estrogen) are inexplicably linked and have a profound effect on the other. Indeed, estrogen functions as a signal to the pituitary gland in the brain, turning on or off the production of testosterone. The higher the levels of estrogen in your system, the lower the amount of testosterone produced. Thus, it is not enough simply to jack up testosterone levels; estrogen levels must be addressed as well. Anti-estrogens may be able to help you in achieving the optimum bloodstream levels of testosterone and consequent mass gain potential.

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  1. ZMA


    Item PSP118
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    Your Price $8.08

    Retail $19.95

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    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
  2. Forslean Coleus Forskohlii
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    Retail $21.95

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    9.2 out of 10 | 22 Review(s)
    Forslean®: Coleus ForskohliiHigh-Potency, Clinically Tested Lean Body Mass-Enhancing Agent Coleus forskohlii has been shown to help increase thyroid hormone production, upregulating metabolism in the process, while exhibiting a positive effect on testosterone production. Indeed in a recent 12-week study, subjects who consumed a standardized extract of Coleus forskohlii roots (250 mg standardized for 10% forskolin extract twice a day), manifested improved lean body mass levels (8.77 lbs of new muscle mass on average) and reduced body fat percentage (9.96 lbs or 11.23%) compared to baseline or control group 1. This Coleus forskohlii product from ProSource addresses both of these desirable effects by offering the ForsLean™ brand forskohlii—verified 10% standardized and patented, in a serving amount equal to that used in clinical research. Learn more about Coleus forskohlii: Forslean -- A Powerful Nutrient Partitioning Agent Muscle Building And The Quest For Test: The Real Truth About Prohormones and the Natural T-boosting Alternatives Read research article:Forskolin Boosts Testosterone And Enhances Body Composition Click to read about An inside look at the ProSource headquarters: See What Sets Our Brand Apart  
  3. Animal Stak
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    Your Price $28.50

    Retail $61.95

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    9.3 out of 10 | 23 Review(s)
    Animal Stak Testosterone SupportTestosterone support formula delivering a blend of 250 mg of long jack extract, 250 mg of avena sativa and 500 mg of tribulus extract. Also supplies 250 mg of Mucuna puriens extract and other assisting nutrients to further help increase results.
  4. AndroCept


    Item BQT004
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    Retail $39.95

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    9 out of 10 | 21 Review(s)
    AndroCept High powered androgen receptor support This highly popular and effective product burst on to the sports supplement scene a half dozen years ago offering bodybuilders and athletes one of the most novel and productive ways to boost testosterone. AndroCept uses a special form of L-carnitine, which promotes increased uptake of testosterone that, in turn, helps promote enhanced mass building. In a major university study, L-carnitine L-tartrate was found to be effective in promoting increased androgen receptor levels, thereby increasing testosterone available for anabolism. And AndroCept utilizes the exact form and dosage of LCLT that was found effective in this study. Because of its unique action, and because it does not increase testosterone itself, AndroCept is an excellent compliment to one of the high-quality T-boosters in this section. The one-of-a-kind and highly beneficial mechanism from which AndroCept works, clearly earns it one of the highest ratings of any product in this category. Benefits of  AndroCept™: Promotes Increased Androgen Receptor Levels Potentiates Testosterone for Increased Anabolism Clinically Supported Androgenic Effect Improves Energy Delivery During Exercise Click to learn more about the ingredients in AndroCept: L-Carnitine Is A Promising Recovery Supplement Carnitine Supplementation Improves Energy Delivery During Exercise Carnitine Enhances Muscle Ability To Take Up Testosterone Carnitine Accumlation In Muscle Is Augmented By Insulin Post-Exercise Nutrition And Carnitine Augment Androgen Receptors Pre-Exercise Nutrition: The Blueprint For A Perfect Workout  
  5. T-BOMB 3Xtreme

    T-BOMB 3Xtreme

    Item MHP068
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    MHP  T-BOMB 3Xtreme Testosterone support formula   The most recent product in MHP’s popular T-BOMB franchise, T-BOMB 3Xtreme contains a number of herbal extracts and mineral compounds often associated with testosterone support, including Tribulus terrestris extract (standardized for 15% protodioscin), fenugreek seed extract (standardized for 50% saponins), longjack extract, saw palmetto berry extract, stinging nettle leaf extract, zinc sulfate and others. T-BOMB 3Xtreme also contains other ingredients which may offer some additional support, including flaxseed, L-arginine, di-malic acid, and glycine.
  6. Reversitol V2

    Reversitol V2

    By I-Force
    Item IFC007
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    Your Price $35.69

    Retail $61.99

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    Reversitol V2 by IForce "Hormonal Regulator"Reversitol has quickly set the standard in natural hormonal modulation. Athletes across the world trust Reversitol to keep their bodies in peak hormonal production for increased performance, muscle mass, and strength. Supplementing your diet with Reversitol promotes complete optimization of key anabolic and anti-catabolic hormones, while controlling hormones that can hinder your gains and reduce your bodies anabolic potential.Supplementing Your Diet With Reversitol may help support:- Testosterone Production - Natural S.E.R.M.- Anti-Aromatase- Natural Myotropic Amplification
  7. Humano Growth

    Humano Growth

    By Labrada
    Item LAB051
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    Your Price $31.95

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    Humano Growth by LabradaGrowth Factor Formula Designed to support:Oxidative Stress Muscle Recovery Testosterone Humano Growth is a cutting-edge embryonic peptide matrix developed in Eastern Europe, designed to help the body support testosterone production and decrease recovery time. Increases normal testosterone production in men and women, leading to a 68% increase in libido, higher sperm count in men, delay of menopause in women, and slowing of the aging process in both genders.Humano Growth  is a standardized chicken embryo extract that contains naturally occurring growth factors. These growth factors are made of clusters of low-molecular weight oligopeptides, which, by their very nature, are quickly and easily assimilated and transported to their specific receptor sites. Each of the growth factors in Humano Growth has unique, bio-stimulating properties:    * IGF-1, IGF-2 (insulin-like growth factor-1,2)    * FGF (fibroblast growth factors)    * NGF (nerve growth factors)    * EGF (epidermal growth factors)    * CTGF (connective tissue growth factors)
  8. Tribulus Pro
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    Retail $18.25

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    8.3 out of 10 | 6 Review(s)
    Universal NutritionTribulus Pro T-Boosting Herbal SupportTribulus terrestris L, a botanical herb, contains steroidal saponins that might have a stimulating effect on luteinizing hormone, a gonad-stimulating hormone which can positively affect testosterone production. In fact, studies performed in Europe found that tribulus use could increase testosterone's production by 30% or more in only five days.Eastern Europeans know something about "underground" performance supplements. Think of androstenedione, for example. For over thirty years, one of their best kept secrets has been a seemingly innocent herb called Tribulus terrestris L. Found natively in Bulgaria, this peculiar herb contains some interesting phytochemicals that can benefit any bodybuilder or competitive athlete. What are these phytochemicals? Steroidal saponins. These steroidal saponins found in tribulus have been used by the world-class Bulgarian powerlifting team for record lifts. In fact, studies performed in Europe found that tribulus use could increase testosterone's production by 30% or more in only five days. Researchers believe that the steroidal saponins in tribulus might have a stimulating effect on luteinizing hormone (LH), a gonad-stimulating hormone which can positively affect testosterone production. For every possible competitive edge, use Tribulus Pro.
  9. D-Aspartic Acid
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    6 out of 10 | 1 Review(s)
    PrimaForceD-Aspartic Acid Nitric Oxide/ Testosterone SupportD-aspartic acid is a physiological amino acid occurring principally in the pituitary gland, hypothalamus, and testes. D-Aspartic Acid is used for sexual support for men, along with support of neurotransmitters such as dopamine & GABA, which are implicated to be responsible for its memory enhancing, anti-depressive & nootropic benefit. Additional uses of D-aspartic Acid are Nitric Oxide production and accompanied (N02,NO3) blood levels.
  10. Methyl Arimatest

    Methyl Arimatest

    Item MSM001
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    Your Price $46.95

    Retail $79.99

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    8 out of 10 | 1 Review(s)
    Methyl Arimatest A Bio-Engineered Aromatase-Inhibitor Complex! Dual Action Pharmadynamic Testosterone Technology7-Arimatase™ Anti-Aromatase and Testosterone Support Dihydrotase™  DHT Blocking and Testosterone Support SubZorb Delivery - Bio-Potency Amplification Clinically Tested**The key technological developments leading to Methyl Arimatest's advanced Dual Action Testosterone Optimization mode of action were elucidated through MuscleMeds analysis and evaluation of the metabolic fate of testosterone in the body and how to optimize testosterone levels and its duration of muscle-building anabolic activity.Methyl Arimatest's formula features a newly developed clinically tested Dihydrotase 5 Alpha-reductase inhibiting complex, plus a new advanced potent methylated anti-aromatase 7-Arimatase. This Dual Action Testosterone Optimizing approach is formulated with botanical ingredients to help support key hormones that influence testosterone production and body composition, DHT and estrogen.Benefits of Methyl Arimatest:Testosterone Support Botanical Antioxidants Helps Reduce DHT Saw Palmetto to Assist Estrogen Reduction

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