Thermonex is BSN\\\'s original and time-tested energy increasing and fat-loss-amplifying formula. Along with its positive calorie burning and weight loss effects, Thermonex can also improve physical performance, promote mental alertness and acuity, curb appetite and regulate thyroid function. And all this without the energy ‘crash’ associated with many other lower quality fat burners.

BSN Thermonex is specifically designed to preserve and enhance lean muscle tissue, not destroy it. Lean muscle helps burn excess fat and increases your metabolic rate. BSN Thermonex also contains the first ever, scientifically engineered, Pro-Thyroid Optimizing System which does not suppress thyroid function. Instead, it works synergistically with your body\\\'s natural thyroid chemistry to help boost and optimize thyroid output. This breakthrough in thyroid analogue technology allows your body to naturally harness the fat burning potential of the thyroid and turn up the body\\\'s thermogenic process.

How does it work?

The effectiveness of BSN Thermonex stems from its unique ingredients, designed to target five separate but critical pathways associated with weight loss and fat burning:

Caffeine: Caffeine increase perceived energy levels, suppresses appetite, enhances mental sharpness and alertness, improves neuromuscular performance and stimulates thermogenesis.
Green Tea Extract: Working in synergy with caffeine, the catechins found in green tea stimulate thermogenesis and the oxidation of fat. Green tea also possesses antioxidant properties.
Yerba Mate: A coffee alternative in South America, it is a source of caffeine and may enhance the effects of the other methyxanthines.
Octopamine HCL: A biogenic amine used to support and enhance thermogenic properties of caffeine and green tea.
Evodia Rutaecarpa (Evodiamine 98%): A non-pungent vanilloid receptor agonist and one of several alkaloids found in Evodia Rutaecarpa, Evodiamine has been found to reduce body fat by stimulating thermogenesis.
Synephrine: A biogenic amine used to support and enhance the thermogenic properties of caffeine and green tea.
L-Tyrosine: A conditionally essential amino acid and precursor to the catecholamines (epinephrine, norepinephrine and dopamine). The ingestion of caffeine releases these catecholamines, which are involved in regulation of neuromuscular performance, alertness, focus and mood. Replenishment of these catecholamines through tyrosine supplementation prevents a \"crash\" from ingestion of caffeine.
Iodotyrosine: An iodinated form of tyrosine used in the synthesis of thyroid hormones.
Diiodotyrosine: An iodinated form of tyrosine used in the synthesis of thyroid hormones.
Naringin: Found in citrus fruits and other plants, this bioflavonoid is used to prolong the activity of caffeine and other methylxanthines. The addition of Narginin prevents the user from experiencing the typical \"crash\" associated with a caffeinated weight-management product.