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Scientific Studies that prove the male sexual enhancement power of the herb Tongat Ali

The following scientific study abstracts document the aphrodisiac qualities of Tongkat Ali are reported on the website http://www.ncbi.nlm.nih.gov of the National Library of Medicine, National Institutes of Health, U.S. Public Health Service.

Tongkat Ali Review by Dr. Simon Chua, Department of Pharmaceutical Sciences, Wayne State University, USA

In a preliminary study at the Reproductive Research Center in Kuala Lumpur, Malaysia, 30 married men, aged 31-52 years old, took Tongkat Ali regularly for three consecutive weeks. Interviews indicated that 48% felt healthy, active and energized, and 40% felt increased sexual desire. The subjects showed an increased free testosterone index. Increased testosterone levels help improve libido, energy and muscle mass for body building. Their levels of DHEA, another critical steroid hormone, gradually increased from 26% after one week to 47% after three weeks. Most of the Tongkat Ali research study subjects demonstrated increased satisfaction in their sexual health and performance. In addition, animal studies have shown that Tongkat Ali may increase testosterone availability as well as libido in mice (Source: Article from the book Molecular Biology of the Cell,  published on Sept. 1, 2002).


Effects of Eurycoma longifolia Jack (Tongkat Ali) on the initiation of sexual performance of inexperienced castrated male rats.

Ang HH, Cheang HS, Yusof AP.

School of Pharmaceutical Sciences, University Science Malaysia, Penang, Malaysia, as reported in Exp Anim. 2000 Jan;49(1):35-8.

We studied the effects of Eurycoma longifolia Jack, commonly known as Tongkat Ali in Malaysia, on the initiation of sexual performance and the weights of sexual accessories in inexperienced castrated male rats. The doses of 200, 400 and 800 mg/kg body weight, which were extracted from E. longifolia Jack, were orally administered to the rats twice daily for 10 days prior to the tests and continued throughout the test period. Testosterone was used as a positive control after injecting 15 mg/kg daily subcutaneously for 32 days. Results showed that E. longifolia Jack produced a dose-dependent increase in sexual performance of the treated animals, but the E. longifolia Jack groups showed lower sexual performance in mounting, intromission and ejaculation than the testosterone group. Further results also showed that E. longifolia Jack promoted the growth of both ventral prostate and seminal vesicles as compared with the control, but the growth of sexual accessories at 800 mg/kg of butanol, methanol, water and chloroform fractions of E. longifolia Jack was less than that of testosterone treated group. The present study therefore gives further evidence of the folkuse of E. longifolia as an aphrodisiac.

PMID: 10803359 [PubMed - indexed for MEDLINE]

  Evaluation of the potency activity of aphrodisiac in Eurycoma longifolia Jack.

School of Pharmaceutical Sciences, University Science Malaysia, Minden, 11800, Penang, Malaysia. [email protected], as reported in Phytother Res. 2001 Aug;15(5):435-6.

The butanol, methanol, water and chloroform extracts of the roots of Eurycoma longifolia Jack were studied using various tests of potency of treated male rats. The results showed that E. longifolia produced a dose-dependent, recurrent and significant increase in the episodes of penile reflexes as evidenced by increases in quick flips, long flips and erections of the treated male rats during the 30 min observation period. These results provide further evidence that E. longifolia increases the aphrodisiac potency activity in treated animals. Copyright 2001 John Wiley & Sons, Ltd.

PMID: 11507738 [PubMed - indexed for MEDLINE]
  Eurycoma longifolia Jack enhances libido in sexually experienced male rats.

School of Pharmaceutical Sciences, University of Science Malaysia, Penang, Malaysia, as reported
in Exp Anim. 1997 Oct;46(4):287-90.

The effects of Eurycoma longifolia Jack were studied on the libido of sexually experienced male rats after dosing them with 200, 400 and 800 mg/kg body weight twice daily of different fractions of E. longifolia Jack for 10 days. Results showed that E. longifolia Jack produced a dose-dependent increase in mounting frequency of the treated animals with 400 mg/kg of chloroform, methanol, water and butanol fractions resulting in mounting frequencies of 5.3 +/- 1.2, 4.9 +/- 0.7, 4.8 +/- 0.7 and 5.2 +/- 0.1, and 800 mg/kg further increased them to 5.4 +/- 0.8, 5.4 +/- 0.8, 5.2 +/- 0.6 and 5.3 +/- 0.2 respectively but there were no erections, intromissions, ejaculations or seminal emissions during the 20-min observation period which allowed for the measurement of sexual arousal reflected by mounting frequency uninfluenced by other behavioural components. This study provides evidence that E. longifolia Jack is a potent stimulator of sexual arousal in sexually vigorous male rats in the absence of feedback from genital sensation.

PMID: 9353636 [PubMed - indexed for MEDLINE]
  Effects of Eurycoma longifolia Jack on sexual qualities in middle aged male rats.

School of Pharmaceutical Sciences, University Science Malaysia, Minden, Penang, Malaysia. [email protected], as reported in Phytomedicine. 2003;10(6-7):590-3.

The effects of Eurycoma longifolia Jack were studied on the sexual qualities of middle aged male rats after dosing them with 0.5 g/kg of various fractions of E. longifolia whilst the control group received 3 ml/kg of normal saline daily for 12 weeks. Results showed than E. longifolia Jack enhanced the sexual qualities of the middle aged male rats by decreasing their hesitation time as compared to controls with various fractions of E. longifolia Jack produced 865-916 (91-96), 860-914 (92-98), 850-904 (93-99), 854-890 (95-99), 844-880 (94-98), 840-875 (94-98), 830-870 (94-98), 825-860 (94-98), 820-850 (96-99), 800-840 (93-98), 750-795 (94-99) and 650-754 sec (82-95%) in contrast to controls which produced 950 (100), 934 (100), 910 (100), 900 (100), 895 (100), 890 (100), 885 (100), 880 (100), 855 (100), 860 (100), 800 (100) and 790 sec (100%) throughout the investigation period. Besides these, there was a transient increase in the % of the male rats responding to the right choice after chronic administration of 0.5 g/kg E. longifolia Jack, with more than 50% of the male rats scored right choice after 2 weeks post-treatment and the effect was more prominent at the dose of the observation period. However, there was no sexual enhancement of the middle aged male rats which consumed normal saline since only 45-55% of the male rats responded to right choice throughout the investigation period. Hence, this study shows that E. longifolia Jack enhanced the sexual qualities of the middle aged male rats, further supports the folkuse of E. longifolia Jack as an aphrodisiac.

PMID: 13678248 [PubMed - indexed for MEDLINE]
  Aphrodisiac evaluation in non-copulator male rats after chronic administration of Eurycoma longifolia Jack.

School of Pharmaceutical Sciences, University of Science Malaysia, Minden, 11800, Penang, Malaysia,
as reported in Fundam Clin Pharmacol. 2001 Aug;15(4):265-8.

The aphrodisiac effect of Eurycoma longifolia Jack (0.5 g/kg) was evaluated in noncopulator male rats using an electrical cage. Fractions of E. longifolia Jack decreased the hesitation time of noncopulator male rats, throughout the investigation period. Furthermore, it possessed a transient increase in the percentage of the male rats responding to the right choice, more than 50% of the male rats scored "right choice" after 3 weeks post-treatment and the effect became more prominent after 8 weeks post-treatment (only 40-50% of the control male rats responded to the right choice) using the electrical copulation cage. Hence, this study lends further support to the use of the plant by indigenous populations as a traditional medicine for its aphrodisiac property.

PMID: 11564133 [PubMed - indexed for MEDLINE]
  Effects of Eurycoma longifolia jack on laevator ani muscle in both uncastrated and testosterone-stimulated castrated intact male rats.

School of Pharmaceutical Sciences, University Science Malaysia, Minden, 11800, Penang, Malaysia. [email protected], as reported in Arch Pharm Res. 2001 Oct;24(5):437-40

It has been reported that Eurycoma longifolia Jack commonly known as Tongkat Ali has gained notoreity as a symbol of man's ego and strength by the Malaysian men because it increases male virility and sexual prowess during sexual activities. As such, the effects of 200, 400 and 800 mg/kg of butanol, methanol, water and chloroform fractions of E. longifolia Jack were studied on the laevator ani muscle in both uncastrated and testosterone-stimulated castrated intact male rats after dosing them for 12 consecutive weeks. Results showed that 800 mg/kg of butanol, methanol, water and chloroform fractions of E. longifolia Jack significantly increased (p<0.05) the leavator ani muscle to 58.56+/-1.22, 58.23+/-0.31, 60.21 +/-0.86 and 62.35 +/-0.98 mg/100 g body weight, respectively, when compared with the control (untreated) in the uncastrated intact male rats and 49.23+/-0.82, 52.23+/-0.36, 50.21+/-0.66 and 52.35+/-0.58 mg/100 g body weight, respectively, when compared to control (untreated) in the testosterone-stimulated castrated intact male rats. Hence, the pro-androgenic effect as shown by this study further supported the traditional use of this plant as an aphrodisiac.

PMID: 11693547 [PubMed - indexed for MEDLINE]
  Sexual arousal in sexually sluggish old male rats after oral administration of Eurycoma longifolia Jack.

School of Pharmaceutical Sciences, University Science Malaysia, Minden, Penang, Malaysia. [email protected], as reported in Basic Clin Physiol Pharmacol. 2004;15(3-4):303-9.

Eurycoma longifolia Jack commonly known as Tongkat Ali in Malaysia, has been used in Malaysia to increase male virility and sexual prowess. The objective of this study is to evaluate sexual arousal in sexually sluggish old male rats, 24 months old and retired breeders, receiving 200, 400, or 800 mg/kg of various fractions of E. longifolia Jack, twice daily, for 10 days. Control rats received 3 ml/kg of normal saline. The aphrodisiac effect was monitored by the act of yawning and stretching because yawning, either alone or associated with stretching, is considered an ancestral vestige surviving throughout evolution that promotes sexual arousal. The results showed that 800 mg/kg of E. longifolia Jack increased yawning by 50% and stretching by 16.7% in sexually sluggish old male rats, by 676-719% and 31-336%, respectively, in sexually active male rats, and by 22-44% and 75-100%, respectively, in middle aged, 9 months old and retired breeders. We conclude that the results of this study support the folk use of this plant as an aphrodisiac.

PMID: 15803965 [PubMed - indexed for MEDLINE]

Tongkat ali is also effective against germs
 

Antibacterial activity of Eurycoma longifolia Jack. A Malaysian medicinal plant.
Saudi Med J. 2007 Sep;28(9):1422-1424. Farouk AE, Benafri A. Biomolecular Engineering Research Unit, Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, Jalan Gombak, 53100, Kuala Lumpur, Malaysia.
       To evaluate methanolic, ethanolic, acetone and aqueous extracts from different parts of tongkat ali (leave, stem, and root) for antibacterial activity against Gram-positive and Gram-negative bacteria and to utilize the leaves and stem parts rather than the root, which is already used for male sexual enhancement in Malaysia. The alcoholic and acetone extracts from leaves and stems of tongkat alli contain potent antibacterial agent(s). This plant can serve as a potential source of antibacterial compounds
.

 
References:

 
1. Suong NN, Bhatnagar S, Polonsky J. Structure of laurycolactone A and B, new C18 - quassinoids from Eurycoma longifolia and revised structure of eurycomalactone (X-ray analysis). Tetrahedron Letters. 1982;23(49):5159-5162.
 
2. Morita H, Kishi E, Takeya K, Itokawa H, Tanaka O. New quassinoids from the roots of Eurycoma longifolia. Chemistry Letters. 1990;749-752.
 
3. Morita H, Kishi E, Takeya K, Itokawa H, Iitaka Y. Squalene-derivatives from Eurycoma longifolia. Phytochemistry. 1993;34(3):765-771.
 
4. Ang HH, Hitotsuyanagi Y, Fukaya H, Takeya K. Quassinoids from Eurycoma longifolia. Phytochemistry. 2002;59(8):833-837.
 
5. Ang HH, Hitotsuyanagi Y, Takeya K. Euyrcolactones A-C, novel quassinoids from Eurycoma longifolia. Tetrahedron Letters. 2000;41:6849-6853.
 
6. Morita H, Kishi E, Takeya K, Itokawa H, Iitaka Y. Highly oxygenated quassinoids from Eurycoma longifolia. Phytochemistry. 1993;33(3):691-696.
 
7. Morita H, Kishi E, Takeya K, Itokawa H. Biphenylneolignans from wood of Eurycoma longifolia. Phytochemistry. 1992;31(11):3993-3995.
 
8. Mitsunaga K, Koike K, Tanaka T, et al. Canthin-6-one alkaloids from Eurycoma longifolia. Phytochemistry. 1994;35(3):799-802.
 
9. Malaysian Monograph Committee. Radix eurycomae eurycoma root. In Malaysian Herbal Monograph Vol 1. Malaysian Monograph Committee. Kuala Lumpur. 1999;29-32.
 
10. Chan KL, Iitaka Y, Noguchi H, Sugiyama H, Saito I, Sankawa U. 6alpha-hydroxyeurycomalactone, a quassinoid from Eurycoma longifolia. Phytochemistry. 1992;31(12):4295-4298.
 
11. Chan KL, Lee SP, Sam TW, Han BH. A quassinoid glycoside from the roots of Eurycoma longifolia. Phytochemistry. 1989;28(10):2857-2859.
 
12 Chan KL, Lee SP, Sam TW, Tan SC, Noguchi H, Sankawa U. 13alpha,18-dihydroeurycomanol, a quassinoids from Eurycoma longifolia. Phytochemistry. 1991;30(9): 3138-3141.
 
13. Kanchanapoom T, Kasai R, Chumsri P, Hiraga Y, Yamasaki K. Canthin-6-one and beta-carboline alkaloids from Eurycoma harmandiana. Phytochemistry. 2001;56:383-386.
 
14. Chan KL, O�Neill MJ, Phillipson JD, Warhurst DC. Plants as sources of antimalarial drugs. Part 3. Eurycoma longifolia. Planta Medica. 1986;52:105-107.
 
15. Choo CY, Chan KL. High performance liquid chromatography analysis of canthinone alkaloids from Eurycoma longifolia. Planta Medica. 2002;68:382-384.
 
16. Itokawa H, Kishi E, Morita H, Takeya K. Cytotoxic quassinoids and tirucallane-type triterpene from the woods of Eurycoma longifolia. Chemical and Pharmaceutical Bulletin. 1992;40:1053-1055.
 
17. Itokawa H, Kishi E, Morita H, Takeya K, Iitaka Y. A new squalene-type triterpene from the woods of Eurycoma longifolia. Chemistry Letters. 1991;2221-2222.
 
18. Itokawa H, Kishi E, Morita H, Takeya K, Iitaka Y. Eurylene, a new squalene-type triterpene from Eurycoma longifolia. Tetrahedron Letters. 1991;32(15):1803-1804.
 
19. Itokawa H, Qin X-R, Morita H, Takeya K. Novel quassinoids from Eurycoma longifolia. Chemical and Pharmaceutical Bulletin. 1993;41(2):403-405.
 
20. Jiwajinda S, Santisopasri V, Murakami A, Hirai N, Ohigashi H. Quassinoids from Eurycoma longifolia as plant growth inhibitors. Phytochemistry. 2001;58: 959-962.
 
21. American Herbal Products Association. Use of Marker Compounds in Manufacturing and Labeling Botanically Derived Dietary Supplements. Silver Spring, MD: American Herbal Products Association; 2001.
 
22. Malaysian Monograph Committee. Radix eurycomae eurycoma root. In Malaysian Herbal Monograph Vol 1. Malaysian Monograph Committee. Kuala Lumpur. 1999;29-32.
 
23. Ang HH, Sim MK. Eurycoma longifolia Jack and orientation activities in sexually experienced male rats. Biological and Pharmaceutical Bulletin. 1998;21(2):153-155.
 
24. Ang HH, Ngai TH. Aphrodisiac evaluation in non-copulator male rats after chronic administration of Eurycoma longifolia Jack. Fundamental and Clinical Pharmacology. 2001;15(4):265-268.
 
25. Ang HH, Chan KL, Gan EK, Yuen KH. Enhancement of sexual motivation in sexually na�ve male mice by Eurycoma longifolia. International Journal of Pharmacognosy. 1997;35(2):144-146.
 
26. Ang HH, Lee KL. Effect of Eurycoma longifolia Jack on orientation activities in middle-aged male rats. Fundamental and Clinical Pharmacology. 2002;16:479-483.
 
27. Ang HH, Cheang HS, Yusof AP. Effects of Eurycoma longifolia Jack (Tongkat Ali) on the initiation of sexual performance of inexperienced castrated male rats. Experimental Animal. 2000;49(1):35-38.
 
28. Ang HH, Chan KL, Mak JW. In vitro antimalarial activity of quassinoids from Eurycoma longifolia against Malaysian chloroquine-resistant plasmodium falciparum isolates. Planta Medica. 1995;61(2):177-178.
 
29. Chan KL, O�Neill MJ, Phillipson JD, Warhurst DC. Plants as sources of antimalarial drugs. Part 3. Eurycoma longifolia. Planta Medica. 1986;52:105-107.
 
30. Zainah A. Master Degree Thesis, School of Pharmaceutical Sciences. Universti Sains Malaysia. Penang, Malaysia. 2009.
 
31. Morita H, Kishi E, Takeya K, Itokawa H, Tanaka O. New quassinoids from the roots of Eurycoma longifolia. Chemistry Letters. 1990;749-752.
 
32. Itokawa H, Kishi E, Morita H, Takeya K. Cytotoxic quassinoids and tirucallane-type triterpene from the woods of Eurycoma longifolia. Chemical and Pharmaceutical Bulletin. 1992;40:1053-1055.
 
33. Tan S, Yuen KH, Chan KL. HPLC analysis of plasma 9-methoxycanthin-6-one from Eurycoma longifolia and its application in a bioavailability/pharmacokinetic study. Planta Medica. 2002;68:355-358.
 
34. Jiwajinda S, Santisopasri V, Murakami A, et al. In vitro anti-tumor promoting and anti-parasitic activities of the quassinoids from Eurycoma longifolia, a medicinal plant in Southeast Asia. Journal of Ethnopharmacology. 2002;82:55-58.
 
35. Chan KL, Lee SP, Yuen KH. Antipyretic activity of quassinoids from Eurycoma longifolia Jack. In Ghazally, I, Murtedza M, Laily D, eds. Chemical prospecting in Malayan Forest. Selangor: Pelanduk Publications; 1995:219-224.
 
36. Tada H, Yasuda F, Otani K, Doteuchi M, Ishara Y, Shiro M. New antiulcer quassinoids from Eurycoma longifolia. European Journal of Medical Chemistry. 1991;26:345-349.
 

How and Why Tongat Ali is the Answer
to Male Erection Problems


Testosterone is the most important representative of the male sex hormones collectively known as androgen produces by the gonads. Its secretion stimulates the differentiation of the male reproductive tract in the embryo, the decent of the testes into the scrotum, the further development of the reproductive tract and penis during puberty and maturation of the sperm.

It is also responsible for the development of male secondary sex characteristics such as moustache, beard, enlargement of the larynx (deep voice) and increase production of the sebaceous glands, Testosterone also play a role in the development and maintenance of male libido (sexual desire) and behavior.

Testosterone have other non sexual roles: It serves the important function for protein biosynthesis in accelerating muscle build-up, increases the formation of red blood cells, speeds up regeneration and recovery time after illness or injury. It stimulates the entire metabolic activity especially in the energy metabolic pathways and burning fats.

Research shows that during puberty. Their lifetime peak at the age of 25 years old, and steadily decrease with age. Some Clinical Studies indicate that generally on average, testosterone levels drops as much as 2 % on yearly basis after the age of 30 years old. At the age of 60 years old the expected testosterone production is only 45-50%. A more prominent decline was observed in individuals who are heavy smokers and alcoholic.

Risk of low Testosterone

1) Osteoporosis and hip fracture
2) Heart disease and myocardial infarction
3) Stroke and cardiovascular disease
4) Prostate cancer
5) Senile dementia

Benefits of Testosterone

1) Stronger bones
2) Increase muscle mass
3) Decrease body fat
4) Increase metabolic rates and oxidative phosphorylation
5) Decrease stress
6) Improve brain function including memory
7) Improve sexual performance

Eurycoma L Jack (Tongkat Ali ) is a proven testosterone booster. This herb is particularly reknown in Asia for its ability to increase testosterone up to 440%. It achieves this by positively affecting hormone balance to naturally stimulate the body to produce more free testosterone.

 Active Ingredient
 
 


The highest grade of Tongkat Ali extract, containing mainly phenolic components, tannins, high molecular weight polysaccharide, glycoprotein and mucopolysacharides. It is believed that these water soluble components are biologically active in rendering some of the observed testosterone boosting and health properties. 

Tongkat Ali Powder extract is an all-natural sexual stimulant engineered to increase sexual stamina, arousal and fertility. Unlike the competition. We only use the highest-grade extracts and nutriceuticals available.

 
 Hot It Works
 
 


Tongkat Ali naturally incites the testes to produce more testosterone on their own by sending signal to the hypothalamus and the pituitary glands, and NOT by supplying exogenous testosterone. Synthetic testosterone (anabolic steroids) can supplement your body with testosterone, but steroids interfere awkwardly with male sexuality, causing penile and testicular shrinkage.

When testosterone levels are elevated, the sex hormones (androgensand estrogens) will signal your body to decrease or stop its own testosterone production, this is call negative feedback. Tongkat Ali intercepts the negative feedback to the hypothalamus and pituitary gland, which results in the body to continuing to produce testosterone at elevated levels. Because the testes are in full testosterone production mode, the penis and testicles will increase in size.

Tongkat Ali acts through the enhancement of testosterone and also c-GMP production. As it enhances the synthesis of the hormone it takes a longer time period to exert its effect. The benefits are felt gradually after a period of time. Optimal effectiveness should be felt within a week of continuous uninterrupted use. When the testosterone level increases, the heath and vitality are restored. Tongkat Ali does not act in the same way as other claimed aphrodisiacs, which take effect immediately. It has to be consumed regularly over time. The mode and mechanism of actions are different. Optimum effectiveness results should be felt within a week of continous uninterupted use. Twice a day )

Tongkat Ali water soluble extract is not a stimulant. Aphrodisiac effects of < href="http://en.wikipedia.org/wiki/Tongkat_Ali">Tongkat Ali varies depending on lifestyle and also the physical and physiological state of the individual.

 


 Water Soluble Extract vs Others
 
 


Most, if not all, Tongkat Ali products available in the market today are pulverized (sawdust) root. Poor and improper extraction techniques. 

1. Until they are scientifically analyzed in the laboratory, there is no way to verify which plant, plant roots or plant parts are being used.
2. Beside, the raw roots are fungus-prone. Unless stringently quality controlled, even grounded root in capsules can deteriorate over time and are subject to attack from fungi and microorganism, 
3. Which could cause toxic and side effects over prolong term usage which may damage the liver and kidney. 
4. Natural Powder are only 1% soluble whereas our water soluble extract is completely soluble.
5. Most are not fully tested with proven clinical trials to prove their product safety and efficacy.
6. Poor and irregular quality standards.
7. The purest grade contains the 1% active ingredients, others do not have such purity and may contain other impurities and substances. 

We utilizing a revolutionary extract process, Tongkat Ali Water Soluble Extract captures the pure essence of the herb, offering 100% Tongkat Ali in its definition form 
Superior, Safe and Effective.

Stringent extraction and manufacturing practice translates into superior efficacy and quality standards. Product that you would trust and deliver to your clients with a peace of mind. [ Please check out our production process ]. 
 

 
 Testosterone Production Rate
 
 

Research shows that during puberty, its level is peaking. Its level is at their lifetime peak age of 25 years old, and steadily decrease with age.

Some clinical studies indicate that generally on average, testosterone levels drop as much as 2% on yearly basis after the age of thirty.

If you ask any aging men about their endurance and sexual desire - the answer would be non affirmative.

What is the cause? Aging? The answer is definitely "YES" !

It has been found that even in healthy men, by the age of 55, the amount of testosterone secreted into the bloodstream is significantly lower than it is just ten years earlier. In fact, by age 80, most male hormone levels decrease to pre-puberty levels.

A recent aging study showed that 51 % of normal, healthy males aged 40 to 70 experience some degree of impotence - defined as a persistent problem attaining and maintaining an erection rigid enough for sexual intercourse. This problem cannot be attributed to the aging process alone,

The St. Louis ADAM (Androgen Deficiency in the Aging Male) questionnaire asks for the following symptoms: 

1. Decrease in sex drive. 
2. Lack of energy. 
3. Decrease in strength and/or endurance. 
4. Lost height. 
5. Decreased "enjoyment of life." 
6. Sad and/or grumpy (memory loss and/or mental confusion) 
7. Erections less strong. 
8. Deterioration in sports ability. 
9. Falling asleep after dinner. 
10. Decreased work performance
  Safety
         
 

In the study, Tongkat Ali freeze dried aqueous extract was orally administered as multiple doses to mice at the dose of 3,500 mg/kg body weight.

CONCLUSION: When tested at the dose levels of 3,500 mg/kg (equivalent to 3,500 doses) neither caused death of the treated male and female rats nor induced any signs of intoxication during the observation period of 28 days. Body weight gain was not affected in treated rats throughout the observation period of 10 days following treatment and no gross pathological alterations could be detected in any of the male and female rats at the termination of the study.


Based on these results, and as per the interpretation criteria suggested by guidelines of WHO, the test article the compound is unlikely to posses hazardous substance therefore safe to be used as herbal preparation risk even at high doses.

Scientist and researchers have shown that the water soluble extract is very safe and non toxic, even at relative high dosage.

  Unbelievable but True
         
 

It was proven on human and mice that after five days dosage twice daily, there is an increase in the testosterone level of 440 % in human and 270 % in mice. Dosage twice a day, benefits generally accrue within 1 week. After three weeks, marked improvement in testosterone levels occur in many

  Production Process
         
 

 

  What is Testosterone
         
 

Testosterone is the hormone that stimulates sexual development in the male infant, bone and muscle growth in adult males, and is responsible for sexual drive. During puberty, testosterone levels are at their lifetime peak. They begin to decline around the age of 23. This is where testosterone therapy comes into play. Many men and women suffer from the lack of important hormones and replacement therapy is simply the most effective way to combat the signs of aging. 

Sex hormones like "Estrogen and progesterone profoundly affect the brain. The increasing memory loss and mild mental confusion emerging in middle age are largely due to declining levels of estrogen and progesterone in women. In men, these same problems are caused by decreasing testosterone and increasing estrogen levels beginning in the late thirties or early forties. Insomnia in women is also related to a lack of estrogen." 

--Dr. Raymond Scruggs
 

 

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