Siam Natural brand Where Science & Nature come together

Tongkat Ali Thai name: Plaplai Phueak
(Eurycoma Longifolia Jack)
A truly effective ED remedy for men & authentic pure root herb libido enhancer for women & men

Boosting Testosterone Leads to Dramatic Increases in Libido, Energy, and Stamina
"One of the unfortunate realities of life is that as we get older we sometimes feel less energetic, less "in the game." It's a disturbing moment, one that usually hits after an unexpected physical challenge. Maybe you've been unable to maintain your usual workout levels, or recovery is taking a lot longer than it used to. Perhaps fixes to the house are just a bit more difficult, or you find yourself feeling tired more often. What's most startling about this realization is that you don't normally "feel old" but, nevertheless, you know you're not the man you used to be. The solution?
It could be as simple as boosting your Free testosterone levels

Premium Grade Tongkat Ali root powder extract is imported from Thailand due to the harvesting restrictions in Malaysia

We stock pure Siam Natural™  Plaplai Phueak (TONGKAT ALI) extract from Thailand - The #1 authentic 100% pure natural brand export to Malaysia & worlwide in 400mg Veggie caps.

Plaplai Phueak (Tongkat) Ali has several active compounds in a group of terpenoid and alkaloid compounds believed to have potential such as on sexual activity as suggested by Baker et al. (1999).

southeast Asian Eurycoma longifoloa tree rootextract specifications
50 kg of Plaplai Phueak [Tongkat ali]
Eurycoma longifolia jack root produces 1kg of pure powder extract    
The 1st stage liquid extract is then manufactured into high potency powder through the latest SFE cold extraction process which renders nutraceutical grade edible extract.

Tongkat Ali - Enhance your vitality & libido with Siam Natural brand 100% pure natural Eurycoma longifolia herbal root extract compound Veggie capsules from Thailand.
(100) ea. Tomgkat ali Eurycoma longifolia jack pure extract powder in 400mg Veggie capsules
$49.95 + $6.00 shipping/handling

* also available in bulk kilos - Eurycoma longifolia jack root extract powder from Siam Natural herbal botanical compounds - Siam Industries International

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So, what's the catch? As always there are those people selling bogus or diluted Tongkat Ali. As a matter of fact, the Malaysian government has banned the export of their Tongkat Ali root to protect its natural habitat from being desecrated due the the popularity in the authentic root powder. It's estimated that the majority of the eurycoma longifolia currently on the market is a less potent variety from Indonesia that is even further diluted with other compounds marketed under various brand names.

"I have personally tested various extracts of eurycoma longifolia in different doses and realized that it has additional side effects not often mentioned in articles or in research papers. Many of my friends and patients have given me feedback regarding their personal experiences with eurycoma supplements. I am convinced that high doses can cause increased body temperature, which is not a good thing during hot and steamy days without air conditioning, but a good thing if you live in Alaska or enjoy taking a walk outside in cool weather. Some people find that when they take a high dose, they become restless and impatient, perhaps easily angered. Therefore, you don't want to swallow several capsules of eurycoma pills if you expect to be driving in heavy traffic. So, be patient and taking lower doses".Dr. Ray Sahelian, M.D.
It should be further noted from Dr. Sahelian's Tongkat Ali product label: "Other ingredients include magnesium stearate, gelatin, & rice flour". Read the research

Traditional uses
Eurycoma longifolia Jack commonly has been successfully used in southeast Asia for generations to increase male virility and sexual prowess.

Agylcon (the nonsugar component of a glycoside molecule that results from hydrolysis of the molecule)
Flavonols: Quercetin, Myricetin and Kaempferol were confirmed by direct comparison with the standard chemicals.
Five flavonol derivatives were identified from E. longifolia

Composition and chemical analysis
Some of the substances in the bark include quassinoids, squalene derivatives, biphenylneolignans, tirucallane-type triterpenes, canthine-6-1, and beta-carboline alkaloids. Additional substances include eurycomanone, longilactone, 14,15beta-dihydroxyklaineanone, 15beta-acetyl-14-hydroxyklaineanone, 6alpha-hydroxyeurycomalactone, eurycomaoside, and eurycomalactone. Eurycomanone is a bioactive quassinoid. Beta-carboline alkaloids are also present in the root.

Tongkat Ali: A review on its ethnobotany and pharmacological importance.
Fitoterapia. 2010. Bhat R, Karim AA. Food Technology Division, School of Industrial Technology, University Sains Malaysia,, Penang, Malaysia.
The plant parts have been traditionally used for its antimalarial, aphrodisiac, anti-diabetic, and antimicrobial activities, which have also been proved scientifically. The plant parts are rich in various bioactive compounds such as eurycomaoside, eurycolactone, eurycomalactone, eurycomanone, and pasakbumin-B among which the alkaloids and quassinoids form a major portion.

Eurycoma herb has been used in Thailand, Malaysia, and other southeastern Asian countries as a sexual stimulant, energy booster, and to fight malaria. Extracts of the plant have been shown to possess cytotoxic, antimalarial, anti-ulcer, antipyretic and plant growth inhibition activities.

How long does it take to work?
Unlike prescription medications that are used for impotence or erectile dysfunction, eurycoma does not work in an hour. It normally takes one to four days for this herb to enhance sexuality. The quickness of the sexual benefits depends on dosage, and higher amounts will provide sexual enhancement the first day. However, adverse effects are much more likely on these higher dosages. If you have any medical problems, taking medications, or are over the age of 50, discuss with your doctor before using Tongkat Ali supplements.
Blood pressure medications - If you have moderate to severe hypertension, we suggest not using Eurycoma products unless the dosages are very low.

Side effects, risks, safety, danger, caution
Eurycoma herb is very potent and side effects can occur quite easily. These include excess energy, restlessness, aggressiveness leading to arguments, increased body temperature, sweating, rapid heart rate, and insomnia. These adverse effects can be reduced by taking smaller dosages.

Animal Studies
Sexual enhancement, libido, erectile function, impotence

Influence of Eurycoma longifolia on the copulatory activity of sexually sluggish and impotent male rats.
J Ethnopharmacol. 2009. Department of Biomedical Sciences, Section of Pharmacology, University of Modena and Reggio Emilia, Modena, Italy.
In the study we evaluated the influence of Eurycoma longifolia Jack on sexual behavior (including both motivation and copulatory performance) of sexually sluggish and impotent male rats. The root powder of the plant was orally administered to adult Sprague-Dawley male rats, classified as sexually sluggish or impotent taking in account their behavior in pre-experimental tests. Groups of 8 animals each were submitted to three different types of treatment: (1) acute at 3 dose levels (250, 500 and 1000 mg/kg); (2) subacute (daily for 6 days) at the dose of 500 mg/kg and (3) subchronic (daily for 12 days) at the same dose (500 mg/kg). Mount, intromission and ejaculation latencies and post-ejaculatory interval were recorded during the mating test in order to evaluate sexual performance. In addition the partner preference test was used to assess sexual motivation. Testosterone serum levels were measured in subacutely treated rats and compared with the values of controls receiving vehicle. Eurycoma longifolia root improved sexual performance but not motivation in sluggish rats after acute or subacute administration. The effect could be mainly ascribed to increased testosterone levels.

Sexual arousal in sexually sluggish old male rats after oral administration of Eurycoma longifolia Jack.
J Basic Clin Physiol Pharmacol. 2004; Ang HH, Lee KL, Kiyoshi M. School of Pharmaceutical Sciences, University Science Malaysia, Minden, Penang, Malaysia.
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. 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% in sexually sluggish old male rats, by 700% and 150%, respectively, in sexually active male rats, and by 30% and 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.

Eurycoma longifolia Jack enhances sexual motivation in middle-aged male mice.
J Basic Clin Physiol Pharmacol. 2003; Ang HH, Lee KL, Kiyoshi M. School of Pharmaceutical Sciences, University Science Malaysia, Minden, Penang, Malaysia.
Eurycoma longifolia Jack was investigated for sexual motivation activity in adult, middle-aged male mice and in retired breeders. Each mouse received 500 mg/kg of one of 4 fractions of E. longifolia, viz. chloroform, methanol, butanol, and water, whereas the mice in the control and yohimbine groups received 3 ml/kg of normal saline and 30 mg/kg of yohimbine daily respectively for 10 d. The results show a transient increase in the percentage of male mice responding to the right choice after chronic consumption of the fractions with 50 percent of the adult middle-aged male mice treated with E. longifolia Jack and yohimbine scoring the right choice after 8 and 5 days post-treatment respectively. In conclusion, this study has shown that Eurycoma longifolia Jack continues to enhance sexual motivation in adult, middle-aged male mice and in retired breeders.


• Estrogens and testosterone are the major sex hormones essential in sexual functioning.

• Both classes of hormones are present in males and females alike, but in different amounts.

• Men generally produce around 6-8 mg of testosterone per day, compared to most women who generally produce around 0.5mg.

• Estrogens are also present in both sexes, but of course in larger amounts for women.

• Premature aging, illness, certain medications and chronic illness all affect your body's hormonal balance, sometimes causing drastic changes in sexual interest and ability.

More awareness has been gained regarding the importance of sexual health since the World Health Organization (WHO) stated over 25 years ago that "There exist fundamental rights for the individual, including…freedom from organic disorders, diseases and deficiencies that interfere with sexual and reproductive function". However, even today there are still many obstacles that prevent this from becoming a reality. This is a general lack of understanding of the relationship between your general health and your sexual function and abilities.Various factors limit your sexual interest and capacity as you age. Heart disease, diabetes, depression, obesity, and digestive, hormonal and nervous system disorders can all seriously lower your abilities and confidence in the sexual arena.

The American Association of Retired Persons has done numerous studies and surveys to find out how non-prevention of such problems in early years has effected lives latterly (in both general health and sexual function and enjoyment).

As well as producing many individual facts and figures, their overall findings can be summarised in one sentence… "Sexual health is not only an important part, but an essential element of the quality of life of adults over the age of 45."

Revelations regarding the effects of prescriptive treatments are also continuously brought to our attention. Preventative measures, general nutritional health, lifestyle and exercise continually prove to be the way ahead to maintain your level of sexual health throughout life.

Krachai dum  Read about another ancient Thai herbal tea rhizome supplement and folklore remedy for ED.

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Why did Fox News reporter "The Medicine Hunter" do a TV Special on this unique southeast Asian tree root?
Scientific Name(s): Eurycoma longifolia Jack. Family: Simaroubaceae. Common Name(s): Tongkat Ali (Malaysia), Malaysian ginseng, LongJack.

The reason is pure & simple - Tongkat Ali is a 100% super natural male & female libido enhancer that really works if you purchase the authentic herbal root compound extract. Thai native Plaplai Phueak [Tongkat Ali] (Eurycoma longifolia Jack) botanical grows naturally in southern Thailand's tropical rainforests.


a Fox News documentary special aired on Tongkat Ali

Hunting for Natural Medicine - Malaysia's popular herbal aphrodisiac


Hunting for Natural Medicine May 28, 2011, The Medicine Hunter, Chris Kilham, takes us along on one of his expeditions in Malaysia. He's on the hunt for the super herb Tongkat Ali, which is said to enhance vitality and libido. (43 min.)   The Medicine Hunter
Thailand's tropical rainforest is home for hundreds of ethno-botanical wonders containing numerous folk medicines!

More on Tongkat ali from Chris Kilham, The Medicine Hunter

Tongkat Ali is a popular folk name for Eurycoma longifolia, a medium size slender tree reaching 10 metres in height. The name Tongkat Ali means “Ali’s walking stick.” Another folk name for the plant is Longjack. Tongkat Ali is native to Malaysia, lower Burma, Thailand, and Indonesia. The root is employed as a traditional remedy for the treatment of malaria, high blood pressure, fevers, fatigue, loss of sexual desire, and impotence. Tongkat Ali enjoys both a long history of traditional use, and a growing body of serious science corroborating its efficacy.

The difficulty of harvesting Tongkat Ali in the wild is one very good reason to cultivate the trees in plantations. Additionally, as this traditional plant remedy becomes more popular, supplies of Tongkat Ali in the wild will inevitably decrease. Over time, this tree could become endangered. To preserve the natural environment, and to protect remaining wild specimens of Tongkat Ali, Malaysia is currently establishing plantations of this tree. The Malaysian government is enthusiastic about the future of Tongkat Ali, and is providing economic support for its development. To every appearance, Tongkat Ali is a market volcano of Krakatoa proportions, ready to blow.

The Testosterone Builder

Tongkat Ali is a scientifically studied plant which holds up brilliantly under close scrutiny. The root contains a plethora of beneficial compounds, including potent protective antioxidants which inhibit cellular aging. Other phytochemicals in Tongkat Ali are anti-viral, anti-malarial, and anti-cancerous. Others combat high blood pressure, and quell dysentery. Quassinoids in the root prove twice as potent as aspirin against fevers.

Even with its other serious medical applications, what excites most people about Tongkat Ali is that the root significantly boosts sex drive and function in both men and women, by building testosterone. Agents identified as glycoproteins appear to be the sex-promoting ingredients in the plant. This discovery, and years of painstaking research, is the work of Dr. Johari Saad , who is called by many the King Of Tongkat Ali. Dr Johari has conducted the definitive animal research on Tongkat Ali, and developed a novel and proprietary method of extracting the beneficial compounds from the root. His extract, LJ100, has been used in both human and animal studies.

“In our studies, we looked at what was happening with animals when we gave them a specially made water soluble extract of Tongkat Ali.” Joe explained to me. “It basically came down to four categories, increased testosterone, increased energy, inhibition of SHBG, and increased muscle mass.” Joe explained that when given Tongkat ali extract, animals copulate three to four times more frequently than normal. This is due, as it turns out, to a significant increase in testosterone. In fact, testosterone levels in animals given Tongkat Ali increase an unprecedented three to four times on average. While animal results do not always guarantee similar activity in people, the same testosterone-boosting effect does occur in human studies. In laboratory tests on human testicular tissue, Tongkat Ali extract increased the formation of testosterone fourfold.

Increasing testosterone is the big objective from a sex drive standpoint. Testosterone is the most important of the male sex hormones, which are known as androgens, and are produced in the gonads. Testosterone plays a key role in the development and maturity of male sex organs. The hormone promotes secondary sex characteristics including the appearance of facial hair, enlargement of the larynx (producing a deeper voice), sexual desire and sexual behavior. But testosterone is not just a sex booster for men. Women also produce testosterone, about 5 – 10% the amount produced in men. In women, this vital hormone also fans the flames of ardor, and increases sensitivity in the erogenous zones. In both sexes, testosterone stimulates metabolism, promotes lipogenesis (burning of fat), increases the formation of red blood cells, and accelerates muscle growth.

From age thirty or so, blood levels of the hormone decline at a rate of about 2% per year. The level will vary from one person to another. Regular exercise helps to keep a somewhat higher level of testosterone. Those who smoke or drink heavily will lose more of this hormone more quickly. As testosterone decreases in the body, muscle tone, energy and sex drive all begin to decline. In both sexes, sex drive, function, fat metabolism and energy decline into middle age, as blood testosterone drops.

With Tongkat Ali extract you can boost your testosterone levels back up to more youthful levels. Dr Johari also found that Tongkat Ali extract inhibits Sex Hormone Binding Globulin. By inhibiting this agent, more free testosterone remains in the blood. This additionally stems the aging process, improving energy and sexual function, helping to reduce body fat, and reducing risk factors associated with cardiovascular disease.

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