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LeanFire keeps your metabolism optimized even when operating on reduced calories, and increases energy levels to support an active and healthy lifestyle. LeanFire contains these proven and effective ingredients proven to increase caloric expenditure for maximum fat burn, minimize carbohydrate conversion to body fat, maximize stamina, endurance and work capacity, ramp up metabolism by activating key fat burning enzymes and it may help prevent "diet induced" metabolic decline.

Because INSTONEis committed to bringing you the best that nutritional science has to offer, we have compiled research and information indicating that LEANFIRE™ is truly best in class.

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5-HTP 7-KETO DHEA Caffeine DHEA Diet and Weight Loss Energy/Pre-Workout Fat Burning Green Tea Gugglesterones Rhodiola Rosea Tyrosine Vitamin C

Frequently Asked Questions

Is LEANFIRE™ for losing weight only, or will it give me energy and a “kick?”
LEANFIRE™ is two products rolled into one. LEANFIRE™ will optimize your metabolism when your body is operating on reduced calories. LEANFIRE™ also contains ingredients that will give you the energy and endurance to get you through your active and demanding lifestyle.

Are there any stimulants in LEANFIRE™ that will give me jitters or keep me up at night?
Each LEANFIRE™ capsule contains as much caffeine as a cup of coffee. Caffeine sensitive individuals should start off by taking 1-2 capsules per day and gradually increase the serving size.

How many times a day can I take LEANFIRE™?
The recommended serving size is 1-3 capsules twice daily (6 capsules/day max).

How long will it take before I see results?
You will begin to feel the thermogenic and sustained energy within an hour. LEANFIRE™ is a great aid for weight loss, when coupled with proper diet and exercise regimen.

Does LEANFIRE™ increase fat metabolism?
Yes – Evodiamine is an alkaloid found in the herb Wu-Chu-Yu. It demonstrates thermoregulatory, analgesic, and cardiovascular effects, and is included in LEANFIRE™ as a primary ingredient. It has been related to the promotion of weight loss, fat breakdown, increased blood flow, and the promotion of oxygen use.  Included in LEANFIRE™ , Evodiamine is an exciting new compound that accelerates fat-loss by increasing your body’s core temperature !

Should I take LEANFIRE™ on an empty stomach, or can I take it with food?
LEANFIRE™ can be taken on an empty stomach or with food.

What is the standard recommended dose for men? For women?
Directions for Men:
Begin by taking 1-2 capsules twice daily before a meal and/or exercise. Gradually increase serving size to 3 capsules twice daily. Do not exceed the recommended serving size.

Directions for Women:
Begin by taking 1 capsule twice daily before a meal and/or exercise. Gradually increase serving size to 2-3 capsules twice daily. Do not exceed the recommended serving size.


How It Works

LEANFIRE™ works by keeping your metabolism ramped up to burn fat as well as increasing your energy and stamina. LEANFIRE™ also works to optimize thyroid and metabolic activity to burn fat, and contains ingredients to maximize endurance, focus, and combat stress.

As such, LEANFIRE™ is an optimal product to help you lose weight and gain the energy that you are looking for. It is a perfect addition to your diet/exercise regimen and will definitely jump start your program!

Research has shown that the potent adrenal steroid DHEA has profound physiological impacts including heightened thermogenesis, decreases in body weight gain, and decreased incidence of obesity in animals 1.

7-Keto, a metabolite or derivative of DHEA - a primary ingredient in LEANFIRE™ - has also been shown to have similar significant physical effects.

More specifically, 7-Keto has been shown to increase key enzymes related to thermogenesis to an even greater extent than its parent DHEA 2,3. Studies have also shown that 7-Keto is related to decreases in body weight and significant reductions in body fat 4.

7-Keto is included as a key ingredient in LEANFIRE™ . As such, LEANFIRE™ , is a superior way to ramp up the body’s metabolism and activate key fat-burning enzymes! Whether you goal to accelerate fat loss or prevent “diet-induced” metabolic decline, LEANFIRE™ is an effective way to get the results you desire.

7-Keto™ is the registered trademark of Humanetics Corp.


Guggulsterones, key ingredients in LEANFIRE™ , support the conversion of peripheral, inactive thyroid hormone (T4) into active thyroid hormone (T3). T3 is the chemical messenger that governs metabolic rate, or how much energy the cells of our bodies use day to day.

By increasing T3 overall, the effect is an increased metabolic need for energy. This metabolic support increases the body’s ability to burn fat for fuel.

Specifically, LEANFIRE™ contains 95% pure E and Z guggulsterones. These are strains of the herbal derivative that have been shown to have this metabolic effect. As such, LEANFIRE™ is a superior way to optimize thyroid activity to promote significant fat loss.


Evodiamine is an alkaloid found in the herb Wu-Chu-Yu. It demonstrates thermoregulatory, analgesic, and cardiovascular effects, and is included in LEANFIRE™ as a primary ingredient. It has been related to the promotion of weight loss, fat breakdown, increased blood flow, and the promotion of oxygen use.

Included in LEANFIRE™ , Evodiamine is an exciting new compound that accelerates fat-loss by increasing your body’s core temperature !


Rhodiola rosea, a key ingredient in LEANFIRE™ is a plant or herb also known as “golden root” or “rose root.” This potent plant has been incorporated as part of traditional and folk medicinal practices for many years.

Typically, Rhodiola was used to combat stress to the body system. It was used as a method to increase endurance, combat fatigue, treat depression, and promote longevity5. It has been shown to stimulate the recovery process after intense exercise and increase energy recovery as well6. Rhodiola rosea has also been found to have a large neural effect - resulting in decreased “sluggishness” and increased mental energy, attention, and feelings of well being7.

As such, it is included in LEANFIRE™ because of these potent effects. This ingredient makes LEANFIRE™ an optimal method to increase one’s energy and stamina, as well as combat oxidative stress during intense exercise!


Green tea components are included in INSTONE™’s LEANFIRE™, making it a phenomenal fat-loss aid! Anti-obesity effects of components of green tea were investigated by researchers in Japan recently8.

This study focused on examining several primary components in green tea. Researchers were interested in how these components aided in green tea’s presumed fat-loss properties. Diets containing powder made from green tea and corresponding singular components of green tea – catechins, caffeine, and theanine – were fed to laboratory mice. Each mouse received a diet containing 2% green tea powder or respective components of green tea based on this 2% powder level for 16 weeks.

At the end of the 16 week trial, body weight, adipose tissue, serum lipid levels, as well as liver lipid levels were measured. Results indicated that body weight and fat tissue were lowered in mice that were fed green tea powder, as well as caffeine and theanine separately. When caffeine was examined in conjunction with catechins from green tea, theanine, and both catechins and theanine, similar significant fat and weight loss was evident. Specifically, those mice fed caffeine and green tea catechins combined experienced over 76% decreased weight relative to a control group. Serum concentrations and non-esterified fatty acids were also found to be lowered with diets including green tea, catechins, and theanine powder.

As such, it is suggested that green tea and components in green tea have significant anti-obesity effects – specifically body weight loss and fat accumulation decreases. In addition, green tea catechins and caffeine were found to have synergistic effects that aid in these same anti-obesity effects.

As can be seen, Green tea components included in INSTONE™’s LEANFIRE™, make it a phenomenal fat-loss aid!


1Tagliaferro, A.R., Davis , J.R., Truchon, S., and van Hamont, N. Journal of Nutrition, 1986; 116: 1977-1983.

2Lardy, H, Partridge, B, Kneer N, and Wei, Y. Ergosteroids: Induction of thermogenic enzymes in liver of rats treated with steroids derived from dehydroepiandrosterone. Proc. Natl. Acad. Sci. USA, 1995; 92: 6617-6619.

3Lardy, H, Kneer, N, Wei, Y, Partridge, B, and Marwah, P. Ergosteroids II: Biologically active metabolites and synthetic derivatives of dehydroepiandrosterone. Steroids 1998; 63: 158-165.

4Kalman, DS, Colker, CM, Swain, MA, Torina, GC, and Shi, Q. A randomized, double-blind, placebo-controlled study of 3-acetyl-7-oxo-dehydroepiandrosterone in healthy overweight adults, Current Therapeutic Research, 2000; 61(7).

5Brown R. Rhodiola rosea A Phytomedicinal Overview, 2002; 56: 40-52.

6Bogatova R, et al. Evaluation of the Effect of a Single Dose of a Phytoadaptogen on the Working Capacity of Human Subjects During Prolonged Isolation. 1997; 31(4): 51-54.

7Ramazanov Z. Rhodiola Rosea The Premier Adaptogen for Mental and Physical Health. 2003.

8Zheng G, Sayama K, Okubo T, Juneja LR, Oguni I. Anti-obesity effects of three major components of green tea, catechins, caffeine and theanine, in mice. In Vivo. 2004 Jan-Feb;18(1):55-62.

Kao YH, Modulation of obesity by a green tea extract catechin. Am J Clin Nutr. 2000;72: 1232-41.

Dulloo AG, Geissler CA, Horton T, Collins A, Miller DS. Normal caffeine consumption: influence on thermogenesis and daily energy expenditure in lean and postobese human volunteers. Am J Clin Nutr. 1989 Jan;49(1):44-50.

Acheson KJ, Maarkiewic B, Pittet P,. Caffeine and coffee: their influence on metabolic rate and substrate utilization in normal weight and obese individuals. Am J Clin Nutr. 33: May 1980 989-997.

Douglas S. Kalman, Carlon M. Colker, Melissa A. Swain, Georgeann C. Torina, and Qiuhu Shi, A Randomized, Double-Blind, Placebo Controlled Study of 3-Acetyl-7-Oxo-Dehydroepiandrosterone in Healthy Overweight Adults

C Colker, M.D, G Torina, M Swain, D Kalman. Department of Medicine, Greenwich Hospital, Peak Wellness, Inc, Greenwich, CT 06830 Double-Blind, Placebo-Controlled, Randomized Clinical Trial Evaluating the Effects of Exercise Plus 3-Acetyl-7-oxo-dehydroepiandrosterone on Body Composition and the Endocrine System in Overweight Adults

Marwah P, et al. Ergosteroids IV: Synthesis and Biological Activity of Steroid Glucuronoids, Ethers and Alkylcarbonates. Steroids 2001; 66: 581-595.

Quinlan PT, Lane J, Moore KL, Aspen J, Rycroft JA, O'Brien DC. The acute physiological and mood effects of tea and coffee: the role of caffeine level. Pharmacol Biochem Behav. 2000 May;66(1):19-28

Nehlig A, Daval JL, Debry G.Caffeine and the central nervous system: mechanisms of action, biochemical, metabolic and psychostimulant effects. Brain Res Brain Res Rev. 1992 May-Aug;17(2):139-70

Liao S. The Medicinal Action of Androgens and Green Tea Epigallocatechin Gallate. HKMJ 2001; 7(4): 369-374.

Poehlman ET. LaChance P, The effect of prior exercise and caffeine ingestin on metabolic rate and hormones in young adult males. Can J Physiol. Pharmacol. Vol 67, 1989

Graham TE, Spriet LL. Performance and metabolic responses to a high caffeine dose during prolonged exercise. J Appl Physiol. 1991 Dec;71(6):2292-8.

Bell Dg, McLellan TM, Exercise Endurance 1, 3 and 6 h after caffeine ingestion in caffeine users and nonusers. J Apply Physiol. 2002 Oct;93(4):1227-34.

Musa A, et al. Effect of Rhodiola rosea and Rhodiola crenulata root extracts on ATP content in Muscle Mitochondria. Experimental Biology and Medicine. 2003; 136 (12) 664-666.

Baranov V.M. Experimental Trials of Herbal Adaptogen Effect on the Quality of Operator Activity, Mental and Professional Working Capacity. 1994; 2-40.

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