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Isa-Test GF Overview

Isatori Isa-Test GF is one of the strongest natural testosterone boosters and aromatase inhibitors on the market. It contains all natural minerals, herbs and botanicals shown to send free testosterone levels through the roof while minimizing estrogen. With higher testosterone levels and lower estrogen levels, you'll be able to pack on more lean muscle while staying leaner and more vascular. Higher testosterone is also associated with increased levels of endogenous growth factors like IGF-1 and natural growth hormone.

Isa-Test GF contains zinc aspartate, magnesium aspartate and vitamin B6, the three building blocks of ZMA shown to boost testosterone levels in athletes when taken before bedtime. ZMA alone has been shown to significantly raise testosterone This premiere test boosting complex also contains Testofen fenugreek extract, rich in 4-hydroxyisoleucine, premium tribulus terrestris fruit, eurycoma longfolia and epimedium extract. Phytonutrients in these extracts work to bind to SHBG, raising free testosterone levels and allowing more test to bind to androgen receptors where it can exhibit its true growth capabilities. They also work to boost the luteinizing hormone produced by the pituitary gland, which signals for more testosterone.

Isa-Test GF's anti-aromatase blend consists of grapeseed extract rich in resveratrol, ajuga turkestanica and rhaponticum carthamoides root. These extracts help reduce circulating estrogen levels. Lower estrogen levels raises testosterone levels due to hormonal feedback loops within the body. More testosterone can allow you to pack on more muscle, cut more body fat and increase your libido. Rapid Bio Diffusion delivery technology works from the first dose to dramatically raise your testosterone levels naturally, whenever you want. You'll get noticeable gains in strength and muscle mass.

Isa-Test is also good to check elevated levels of estrogen levels that may occur after taking some supplements. This is known as rebound. Test levels can drop and estrogen levels will rise to compensate. To counteract this condition, a supplement like Isa-Test GF can be a great proactive measure to keep estrogen at bay. The aromatase inhibitors prevent estrogen conversion. The combination of natural ingredients has been clinically shown to support an increase in natural testosterone.

Free testosterone, estrogen and growth factors are the most potent anabolic hormones for increased muscle mass, strength gains and cranked up sexual drive. Anabolic hormones and other growth factors act as key building blocks in the body. Anabolic hormones are chemicals that encourage cellular growth and build new tissues and pathways that have been broken down. Growth factors are signaling molecules between cells that stimulate cellular growth and healing. Both anabolic hormones and growth factors are key to putting on lean muscle and maintaining an efficient metabolism. Combined with proper diet and exercise, Isatori Isa-Test GF can help keep you in your best shape.


  • Clinically shown to increase your bioavailable testosterone by up to 154 percent
  • Exclusive P-450 reduces "female-hormone" estrogen by up to 43 percent

Isa-Test GF Description from Isatori
ISA-TEST GF is high performance testosterone booster comprised of a precise combination of natural ingredients shown to support increases in testosterone and a reduction in the "female-hormone" estrogen. ISA-TEST GF is designed to promote noticeable gains in strength, increased muscle mass, and improved sexual drive and performance.

Supplement Facts
Serving Size: 4 capsules
Servings Per Container: 30
Ingredient Amount % Daily Value**
Vitamin C (as Ascorbic Acid) 25mg 28
Vitamin B6 (as Pyridoxine HCL) 7mg 412
Magnesium (as Oxide & Aspartate) 300mg 71
Zinc (as Zinc Aspartate) 20mg 182
ISA-TEST GF, a Proprietary Blend Containing: 1714mg
-Tribulus Extract (Tribulus terrestris L.) (fruit) (60% total saponins, 20% protodioscin),
-Epimedium Extract (Epimedium sagittatum and Epimedium brevicornum)(leaf)(std. for 10% icariin),
-EI-450 Estrogen Inhibitor Citrus bioflavanoid complex (Citrus sinensis)(peel and 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)(Std. for 95% proanthocyanidins),
-Fenugreek Extract (Trigonella foenum-graecum L.)(seed)(standardized for 50% saponins), Rhaponticum
-carthamoides Extract (root)(Standardized for 5% Ecdysterones).
SOMATRIN, a Proprietary Blend Containing: 325mg
-Velvet bean Extract (Mucuna pruriens)(seed)(std. for 20% L-Dopa). Nettle Extract 30:1 (Urtica
-dioica)(root), Melatonin (N-Acetyl-5-Methoxytryptamine).
ISAFLOW, a Proprietary Blend Containing: 100mg
-Butchers broom extract (Ruscus aculeatus)(root)(standardized for 20% sterolic heterosides),
-Hesperidin methyl chalcone (citrus sinensis)(fruit)(90% hesperidin).
** Percent Daily Value is based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
† Daily Value not established.

Other Ingredients: Gelatin, Magnesium Stearate, Silicon Dioxide, Microcrystalline Cellulose, FD&C Red #40, Candurin Silver, FD&C Red #3, FD&C Blue #1.

Manufacturer's Directions
As a dietary supplement, men take 4 capsules with a full glass of water one hour prior to training. 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. ISA-TEST GF can be used on it's own or in combination with other iSatori supplements.

Manufacturer's Disclaimer
KEEP OUT OF REACH OF CHILDREN. Women should not use this supplement. Not intended for individuals under the age of 18, unless instructed by a doctor. Use only as directed. Do not exceed suggested daily dose. If you are taking medication or have a medical condition, consult a physician before using this product. Discontinue use 2 weeks prior to surgery. If you or your doctor have any questions about this product, please call 1-866-688-7679. Do not use if packaging has been tampered with. STORE IN A COOL DRY PLACE. AVOID EXCESSIVE HEAT.