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ISA-TEST GF by iSatori

  Brand: iSatori
iSatori ISA-TEST GF by iSatori
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Maximum Strength Testosterone Stimulator

  • Now with Somatrin™: spikes anabolic growth factors by 140%
  • Clinically shown to increase Free Testosterone by up to 154%
  • Exclusive P-450™ reduces "female-hormone" Estrogen by up to 43%
  • No illegal pro-steroids or dangerous prohormones
  • Increases muscle mass, strength, and sexual drive



Every medical professional and bodybuilder knows these are the three most potent hormones for increased muscle mass, strength gains, and cranked up sexual drive. ISA-TEST GF is now the world's only formula proven to manipulate all three... for total anabolic growth and zero side effects!

Even more impressive, here are five undisputed facts that are sure to convince you of the power of Isa-Test GF :


Only ISA-TEST contains clinical data revealing an up to 154% INCREASE in BIO-AVAILABLE TESTOSTERONE within 30 minutes...


Only ISA-TEST contains the scientifically proven P-450™ TO REDUCE the "female-hormone" ESTROGEN by up to 43%...


Only ISA-TEST is the FIRST EVER to use the GH breakthrough SOMATRIN™ to INCREASE YOUR STRENGTH on the FIRST workout…


Only ISA-TEST will not shut down your body's natural production of Testosterone, like prohormones and illegal steroids...


Only ISA-TEST contains Rapid Bio-Diffusion Delivery™ Technology, so you can "feel" its effects from THE VERY FIRST DOSE!



Somatrin is a unique and powerful compound, found only in ISA-TEST GF, which possesses serious anabolic growth factor stimulating properties. In fact, in a recent clinical study, Somatrin was shown to increase human growth hormone factors by 140% when taken 30 minutes before training (see below). A widely known scientific fact, growth hormone is the primary anabolic hormone responsible for accelerated muscular growth.

Meeking, DR, et al., Exercise-induced GH secretion is enhanced by the oral ingestion of melatonin in healthy adult male subjects, Eur J Endocrinol. 1999 Jul;141(1):22-6.

Testofen™ (Trigonella Foenum Greacum)

Testofen is a not-so-well-known herb… but it's become quite an underground sensation for many European bodybuilders. It contains a variety of powerful anabolic compounds, among them Protodioscin and Steroidal Saponins.

Unlike other natural testosterone-boosting herbs, Testofen contains a host of active compounds in addition to Protodioscin and Saponins—all responsible for significantly boosting Testosterone (or T, for short) levels, muscle mass, and libido.

Research suggests the majority of these saponins exist as saponin glycosides. Fenuside is a set of potent saponin glycosides unique to Testofen that have been specially extracted and standardized to yield the highest potency and purity for maximal benefit.

Now, since Testofen is the only natural substance that produces these unique Fenusides, what's interesting is Testofen "acts" more like Testosterone by binding to the Testosterone receptor sites and creating more Testosterone. And as a result, it amplifies the androgenic and anabolic activity in the body.

Equally important, though, it does this without shutting off the body's own natural production of T. In a recent randomized, placebo-controlled clinical trial with 60 men, Testofen nearly doubled (+98%) users' Testosterone. In yet another study, Testofen was compared to a "real" anabolic steroid, and it faired exceptionally well—comparable in muscle mass gains after only 14 days of use, with a fraction of the amount of Testosterone produced in the body by the "real" deal.

It's for these reasons, Testofen is one of bodybuilding's best-kept secrets because, as confirmed by multiple research studies, it demonstrates strong androgenic and anabolic properties to boost libido and increase muscle mass.

Tribulus Terrestris (otherwise known as Tribulus or by the active compounds, saponins and protodioscin).

This herbal extract was originally discovered and researched in Bulgaria (the home of many of today's Olympic Powerlifters). Even though it's been lopped into the same boat as prohormones, it's absolutely, positively not a hormone. In fact, tribulus works with your body—not to inhibit it—but to help support its natural ability to produce T and restore it to within "normal" ranges. Many theorize this is possible because tribulus works by increasing luteinizing hormone (LH), which in turn tells your body to start producing more T. In fact, one study done with healthy males who supplemented with 750 mg of tribulus per day showed a 72% LH increase and an impressive 41% increase in free T levels. Another study showed participants had increased libido, sexual behavior, and sperm production. As a result of these findings, tribulus has become extremely popular and widely accepted as a safe and effective alternative to prohormones.

Eurycoma longifolia (better known by its patented form, Longjax™).

Animal studies have shown significant effects of Eurycoma longifolia on sexual behavior and increases in T—one showing an up to 170% increase in T. Another plus is, because Eurycoma isn't a prohormone, it won't suppress your natural production of T: instead it boosts it.

In a recent study reported in the 2007 ISSN Journal, 30 men participating in a 24-hour mountain biking race were divided into two groups. One group (15) received Eurycoma, and the other group (15) received a placebo. The researchers measured both cortisol and testosterone and discovered that the men who used Eurycoma enjoyed 32.3% lower cortisol levels and 16.4% higher testosterone. They concluded, "These results suggest that Eurycoma longifolia extract may help to maintain normal levels of cortisol (low) and testosterone (high) and thus promote an overall 'anabolic' hormonal state during intense endurance exercise."

Users on the street have also experienced favorable results. It's been noted that 80% of people who use Eurycoma notice an immediate, definite increase in their libido. According to the science, it appears Eurycoma is a potent stimulator of T levels and sexual arousal and vigor, which really isn't all that bad if you think about it!

Currently, there have been no negative side effects reported from the use of Eurycoma.

Zinc/Magnesium (Zinc Aspartate, Magnesium Aspartate)

Supported by two studies, this combination of minerals has proven its worth in the lab and in the real world.

It's become apparent for some time now that consistent resistance training causes a depletion of vital minerals in the muscle cells. One such critical mineral is zinc. Zinc has also been shown to play an important role in the body's ability to get a restful night's sleep. When you are able to get a sound night's sleep, your body releases many more hormones, namely T and growth hormone—two very powerful anabolic hormones for building muscle mass. In fact, a larger percentage of T secreted daily in men occurs during sleep, and levels peak during the early morning. As you can see, a good night's sleep is vitally important for increasing T levels, and thus supplementing with zinc can help replace not only the "depleted" zinc from weight training but supply the body with adequate amounts for a restful night's sleep... so your T levels can continually stay on the rise (pardon the pun.)

What's more, zinc and magnesium supplementation have both been reported to significantly reduce levels of the catabolic (muscle-wasting) "stress" hormone, cortisol, by 59% and 25% respectively.

Because zinc and magnesium deficiencies are both commonly found in the general public and are even more prevalent in intensely trained athletes and weight trainers, this combination has become popular. I suppose it's also safe to say that because zinc and magnesium is merely a harmless mineral combination and not a prohormone, it's becoming more and more widely used by competitive athletes, including college, professional, and Olympian. And with great success!


Ajuga is a traditional folk remedy used in Central Asia for thousands of years to enhance muscular strength and physical endurance under harsh, exhausting conditions.


A plant that grows throughout eastern Siberia that Soviet scientists used as a replacement for anabolic steroids. Currently, rhaponticum is listed in the Russian Pharmacopoeia as a remedy for increasing work efficiency under stressful conditions, improving athletic performance, and promoting recovery after intense muscular workloads.


Also known as "horny goat weed," epimedium is grown as an ornamental herb in Asia and the Mediterranean region. It has been used for centuries to treat fatigue and boost sex drive. Recent studies in humans have shown epimedium also decreases cortisol and enhances immune function.

P-450™ Hesperetin ([(S)-2,3-dihydro-5,7-dihydroxy-2-(3-hydroxy-4- methoxyphenyl)-4-H-1-benzopy-ran-4-one])

Hesperetin is an interesting citrus bio-flavonoid found primarily in oranges and lemons. The antioxidant properties of hesperetin are fairly well established, and more recent studies have indicated hesperetin may also have anti-inflammatory, anti-allergic, hypolipidemic (reduces total cholesterol, including HDL), vasoprotective, and anti-carcinogenic actions. But a newly discovered, added benefit of this substance may be even more profound for weight trainers since hesperetin appears to be a potent anti-aromatase.

See, aromatase is the enzyme that is involved in the process through which hormones in the body are converted to Estrogen. As an anti-aromatase, hesperetin reduces the formation of Estrogen in the body. This is important because the conversion of Testosterone to Estrogen is thought to increase as we age (at least in males), and because increases in Estrogen are linked to a whole host of unwanted side effects, like increased bodyfat, testicular shutdown, water retention, and in extreme cases, even gynecomastia (a "female-breast-like" appearance) or testicular cancer.

What's interesting is that no one has used this powerful anti-Estrogen compound—until recently that is. Probably because hesperetin was virtually unknown until recent research indicated its potential positive effects for inhibiting Estrogen and because it takes an immense amount of resources to learn how to extract such a compound from its natural source. Recently, however, hesperetin has been trademarked under the name P-450. Since it's a natural compound and it doesn't "shut down" your body's natural production of T, you can use it for as long as you'd like.

Grapeseed extract

An extract from red grapes containing the active compounds known as oligomeric proanthocyanidins (OPC). OPC have potent antioxidant and cardio-protective properties. Recent studies have also shown that OPC have anti-Estrogenic properties.

Rapid Bio-Diffusion Delivery™ Technology

With the guidance of a leading pharmaceutical specialist and medical doctor, iSatori Technologies developed an exclusive Rapid Bio-Diffusion Delivery™ technology, which uses a sophisticated "micro-particlization" process, so Isa-Test starts working from the very first dose to crank up the body's natural testosterone production, fast. Within 30 minutes of taking Isa-Test, you'll begin to "feel" it going to work… an instant rush of testosterone… because of its lightening-fast absorption and increased potency. No other testosterone formula in existence contains this state-of-the-art delivery technology. You can find it only in Isa-Test.

IMPORTANT: The use of the product is not banned by any athletic organization, government association (including military), or the International Olympic Committee (IOC). Use only as directed.

*QUALITY SATISFACTION GUARANTEE: Isa-Test contains a proprietary formula that cannot be duplicated and is manufactured under the strictest pharmaceutical-quality guidelines. The contents of each capsule are analyzed by independent laboratories to ensure the complete purity, potency, and accuracy of its content.


Ang, H.H., and Lee, K.L., "Effect of Eurycoma longifolia Jack on Orientation Activities in Middle-Aged Male Rats," Fundam Clin Pharmacol 16.6 (2002) : 479-83.

Ang, H.H., Sim M.K., "Eurycoma longifolia Jack Enhances Libido in Sexually Experienced Male Rats," Exp Anim 46.4 (1997) : 287-90.

Annewieke, W., "Measures of Bioavailable Serum Testosterone and Estradiol and Their Relationships with Muscle Strength, Bone Density, and Body Composition in Elderly Men," J Clin Endocrinol Metab 85 (2000) : 3276-82.

Awoniyi, C., et al., "Regulation of Gonadotrophin Secretion in the Male: Effect of an Aromatization Inhibitor in Estradiol-Implanted, Orchidectomized Dogs," Journal Andriol 7 (1986) : 239-43.

Bamman, M.M., et al., "Urban Mechanical Load Increases Muscle IGF-1 and Androgen Receptor mRNA Concentrations in Humans," Am J Physiol 280 (2001) : E383-90.

Bhasin, S., et al., "Androgen Effects on Body C Growth Horm IGF," Res 13 Suppl A (2003) : S63-71.

Bhasin, S., et al., "The Effects of Supraphysiologic Doses of Testosterone on Muscle Size and Strength in Normal Men," N Engl J Med 335.1 (1996) : 1-7.

Bhasin, S., "Effects of Testosterone Administration on Fat Distribution, Insulin Sensitivity, and Atherosclerosis Progression," Clin Infect Dis 37 Suppl 2 (2003) : S142-9.

Brown, G.A., et al., "Effects of Anabolic Precursors on Serum Testosterone Concentrations and Adaptations to Resistance Training in Young Men," Int J Sport Nutr Exerc Metab 10.3 (2000) : 340-59.

Department of Obstetrics and Gynecology, National University Hospital, National University of Singapore, Singapore.

Exercise Biochemistry Laboratory, Department of Health and Human Performance, Iowa State University, Ames, IA 50011, USA.

Ferrando, A.A., et al., "Testosterone Injection Stimulates Net Protein Synthesis but Not Tissue Amino Acid Transport," Am J Physiol 275.5 Pt 1 (1998) : E864-71.

Gauthaman, K., et al., "Aphrodisiac Properties of Tribulus Terrestris Extract (Protodioscin) in Normal and Castrated Rats," Life Sci 71.12 (2002) : 1385-96.

Guay, A.T., et al., "Clomiphene Increases Free Testosterone Levels in Men with Both Secondary Hypogonadism and Erectile Dysfunction: Who Does and Does Not Benefit?" Int J Impot Res 15.3 (2003) : 156-65 .

Human Performance Specialists, Inc. Thomas Incledon, President, "6-OXO™ on Endocrine Responses in Resistance-Trained Men," Abstract presented at The American Dietetic Association Annual Meeting in October 2003.

Juniewicz, P.E., et al., "Aromatase Inhibition in the Dog. Effect on Serum LH, Serum Testosterone Concentrations and Spermatogenesis," Journal Urology 139.4 (1988) : 827-31.

Kadi, F.P., et al., "The Expression of Androgen Receptors in Human Neck and Limb Muscles: Effects of Training and Self-Administration of Androgenic-Anabolic Steroids," Histochemistry and Cell Biology 113 (2000) : 25-29.

Kraemer, W.J., et al., "Endogenous Anabolic Hormonal and Growth Factor Responses to Heavy Resistance Exercise in Males and Females," Int J Sport Med 12 (1991) : 228-235.

Kraemer, W.J., et al., "Hormonal and Growth Factor Responses to Heavy Resistance Exercise Protocols," J Appl Physiol 69 (1990) : 1442-50.

Manni, A., et al., "Bioavailability of Albumin-Bound Testosterone," J Clin Endocrinol Metab 61.4 (1985) : 705-10.

McCell, G.E., et al., "Acute and Chronic Hormonal Responses to Resistance Training Designed to Promote Muscular Hypertrophy," Can J Appl Physiol 24 (1999) : 96-107.

Pardridge, W.M., "Serum Bioavailability of Sex Steroid Hormones," Clin Endocrinol Metab 15.2 (1986) : 259-78. Review.

Phillips, S.M., et al., "Mixed Muscle Protein Synthesis and Breakdown After Resistance Exercise in Humans," Am J Physiol 273 (1997) : E99-107.

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ISA-TEST GF by iSatori Reviews

104 Capsules
ISA-TEST GF, 104 Capsules (Sold Out) 

ISA-TEST GF by iSatori Supplement Facts

Supplement Facts

104 Capsules
Serving size 4 Capsules
Servings per container 26
Amount Per Serving
ISA-TEST, a proprietary blend containing
Proprietary Blends: Tribulus extract (Tribulus terrestris L.)(aerial parts)(60% total saponins, 20% protodioscin), Epimedium extract (Epimedium sagittatum and Epimedium brevicornum)(leaf)(standardized for 10% icariin), P-450 Estrogen Inhibitor Citrus bioflavanoid complex (Citrus sinensis)(peel & fruit)(50% hesperidin), Tongkat ali extract 20:1 (Eurycoma longifolia)(root), Ajuga turkestanica extract 10:1 (stem and leaf), Grapeseed extract (Vitis vinifera L.)(seed) (Standardized for 95% proanthocyanidins), Fenugreek extract (Trigonella foenum-graecum L.)(seed)(standardized for 50% fenuside saponins), Rhaponticum carthamoides extract (root)(standardized for 5% Ecdysterones)
ISAFLOW a proprietary blend containing
Proprietary Blends: Butchers broom extract (Ruscus aculeatus)(root)(standardized for 20% sterolic heterosides), Hesperidin methyl chalcone (Citrus sinensis)(fruit)(90% hesperidin)
100 mg
Magnesium (as Oxide and Aspartate) 300 mg 75%
SOMATRIN a proprietary blend containing
Proprietary Blends: Velvet bean extract (Mucuna pruriens)(seed)(standardized for 20% L-Dopa), Nettle extract 30:1 (Urtica dioica)(root), Melatonin (N-Acetyl-5-Methoxytryptamine)
325 mg
Vitamin B6 (Pyridoxine Hydrochloride) 7 mg 250%
Vitamin C (Ascorbic Acid) 25 mg 40%
Zinc (as Zinc Aspartate) 20 mg 130%

 Other Ingredients

Gelatin, Magnesium Stearate, Silicon Dioxide, Microcrystalline Cellulose, Titanium Dioxide, FD&C Red #40, FD&C Blue #1, FD&C Red #28.

 Directions for ISA-TEST GF by iSatori

As a dietary supplement, take 4 capsules with a full glass of water one hour prior to exercise. On non-training days, take 4 capsules one hour prior to bedtime. Take with or without food. For the best results, use continuously for a minimum of 8 weeks.

 Warnings for ISA-TEST GF by iSatori

Use only as directed. Do not exceed suggested daily dose. Not intended for individuals under the age of 18, unless instructed by a doctor. Women should not use this supplement; so obviously, do not use this product if you are pregnant, nursing, or are contemplating pregnancy. If you have a medical condition or are taking any prescription medications, please consult your physician first. For adult use only at bedtime. If you are taking medication or have a medical condition, consult a physician before using this product. Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery. If your health-care provider has any questions, please have him or her call 1-866-688-7679. Keep out of reach of children.
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