Tongkat Ali root is available as a powder in capsules by itself such as 200 mg per capsule, and it is also combined with other herbs in libido products. There are also concentrated forms of tongkat ali, which I will refer to as extracts. One well known and potent tongkat ali extract is LJ100 which is a concentration of 40% glycosaponins and 22% eurypeptides. It is not a 100 to 1 extract as the name may suggest. Let me explain further:
   You can find tongkat ali promoted as 4:1, 5:1, 10 to 1, 20:1, 50:1, 100:1 and 200:1 extract concentrations. These can be quite misleading since there are no accepted scientific standards as to what a particular concentration of the herb has to be before it is called a 4:1 or a 50 to 1 extract. Thus, in this uncharted and undefined territory, come various unscrupulous promoters who claim their product is a 20 to 1, 50 to 1, 100 to 1 or 200 to 1 extract. These claims are quite misleading. What are they basing their high potency claim on? There are quite a number of different chemicals within the tongkat ali root. There are no standards that say a 40% glycosaponin content constitutes a particular extract concentration. Therefore, in my opinion, there is no such thing as a 50 to 1, 100 to 1, or 200 to 1 extract and any company who claims they are selling a product that is 200 times as potent as the regular powder is misleading you. The only way to find out what is in their product is to see a chemical analysis known as an HPLC test to determine the various ratios and contents of glycosaponins, eurypeptides, quassinoids, and the other active ingredients within the plant.
   To make matters a little more complicated, each raw material supplier and manufacturer has a different way of preparing and extracting the tongkat ali root active ingredients. Also, trees grown in different plantations may have a different ratio of the active aphrodisiac substances. Hence, it is difficult to give a dosage recommendation that would apply to all the products on the market. One advantage of LJ100 tongkat ali extract is that it has been available for a number of years and each batch is quite consistent. I have experimented and tried a number of tongkat ali extracts and find each to have its advantages and disadvantages. I am quite familiar with LJ100 since I have experience using it either by itself, or combined with other aphrodisiac herbs.
   After years of getting feedback from users of LJ100, and having tried it myself in varying dosages, I have found an appropriate dosage to put in a formula called Passion Rx which works extremely well as a sex booster in men and women with the fewest side effects. You have the option of taking tongkat ali powder 200 mg in capsules by itself, LJ100 25 mg by itself, or both in combination with other sex herbs. I prefer combinations since one can take advantage of different herbs which work in different ways to enhance the overall sexual experience, including sex drive, sensation, stamina, erectile function, orgasms, and lubrication.

Tongkat Ali LJ100 - 25 mg extract, 30 Capsules - Formulated by medical doctor Ray Sahelian, M.D., author of Natural Sex Boosters

Tongkat Ali LJ100 is a high quality standardized extract. LJ100 increases energy, stamina, physical endurance, genital sensation, and sexual performance. This product comes from the best and exclusive raw material supplier, direct from Malaysia. You also have the option to take tongkat al root powder at 200 mg, or preferably Passion Rx which is a wonderful combination of more than a dozen aphrodisiac herbs, including tongkat ali root powder and LJ100. It is difficult to predict in any one individual which product will work best. The surest way is to try them separately to see which one is most suitable to your own body chemistry.

Click here to buy LJ100 extract, Passion Rx with LJ100, a potent sexual enhancer that works in men and women, Tongkat ali root powder capsules, or to see a list of high quality aphrodisiac and sexual herbs such as horny goat weed, tribulus, maca, catuaba, mucuna pruriens, and others

Supplement Facts
Tongkat Ali LJ100 - 25 mg (Eurycoma Longifolia jack)
   (standardized to 40% glycosaponins and 22% eurypeptides).

Suggested Use: There are different viewpoints on how to take this natural aphrodisiac, we prefer starting slow. For libido maintenance, take one LJ100 capsule every other day or every third day. There are individuals who need a higher dose to feel an effect and for them 2 capsules may be more appropriate. As an alternative, you could consider Passion Rx which has more than a dozen effective sexual enhancing herbs such as horny goat weed, maca, tribulus, mucuna, muira puama, catuaba, avena sativa, and others.

Studies
As of November 2010, I have not come across published human studies on Medline regarding LJ100 research. There have been several studies done in Malaysia or other southeastern Asian countries with this extract, but I cannot find any that have been formally published in medical journals. Nevertheless, my personal experience convinces me that this tongkat ali extract is effective as a sexual enhancer, but it needs to be used cautiously and in the right dosage for it to work while minimizing side effects.

LJ100 side effects, safety, danger, risk
There are side effects to LJ100 when used in high doses. These include increased body temperature, restlessness, irritability, and insomnia. When you buy a LJ100 supplement, keep this in mind and initially start with a dose no more than 25 mg. If you are sensitive to herbs, take a portion of a capsule. LJ100 should not be taken on the same day as Passion Rx or other libido products or other individual sex herbs since there could be overstimulation and restlessness.

I took 50 mg of LJ100 from another company and it made me very irritable.
   High doses of this herbal extract can cause irritability and restlessness, and that is why we prefer people take smaller amounts.

High Quality products formulated by a medical doctor
Consider highly popular all natural products. These top quality products include Mind Power Rx with acetyl l carnitine and gingko biloba for better concentration, and mood; Eyesight Rx with lutein for better vision, often within days; MultiVit Rx with vitamins and minerals, a daily comprehensive multivitamin for more energy and vitality; Joint Power Rx for healthy joints; Prostate Power Rx with saw palmetto and pygerm for a healthy prostate gland and gentle sexual and erectile enhancement.

Questions
I just today purchased LJ100 and was given advice to stak it with Tribulus Fuel which is a testosterone booster.
   I am not very familiar with Tribulus Fuel. LJ100 is quite potent and I suggest using it by itself. Taking too many herbs the same day can cause rapid heart beat, increased body temperature, insomnia and irritability. Lack of good sleep interferes with good hormone balance, which interferes with growth hormone release. All this is counterproductive to muscle building. To increase muscle mass I suggest creatine supplement along with protein powders.

I bought a bottle of LJ100 25 mg. I read the dosage like 1 capsule every other day or 3 times a week. Can I not take LJ00 as needed, like Viagra.
   Herbs are not like Viagra, Cialis or Levitra, they take a few days before working at their best. You can take one capsule LJ100 in the morning every other day or 3 days a week and discuss with your doctor how to use Viagra. We suggest not taking the prescription medication the same day as LJ100. Viagra can be taken on a day when you are not taking LJ100 and it is better to use a smaller dose of Viagra than you normally would. Many sexual herbs have a delayed effect into the second and third day after taking a capsule.

Q. Just after taking 150 mg/day of Herbal Powers LJ100 capsule my platelet count jumped up to 681. Some claims are that tongkat ali increases red blood increase in bone marrow, so maybe it caused my high platelet count.
   A. It's difficult to make this connection based on one blood study, but you may with to take a break from LJ100, test to see what your platelet level is, and then retake the LJ100 followed by retesting to see if it reoccurs. 150 mg of LJ100 is an extremely high dose.

Q.  I just purchased the tongkat ali LJ100 product labeled as "Physician Formulas" LJ100 capsules. I just started taking these LJ100 capsules and find the effects are better than a product I purchased from Sumatra Pasak Bumi from Indonesia. I have just been made aware of research from Malaysia that has shown mercury and lead in tongkat ali. Being a physician and having worked with patients toxic in environmental chemicals and metals, I am alarmed!! What research or analysis has been done on LJ100 products to assure that they are safe?
   A. If you click above for LJ100 near the bottle, it will take you to a website where there is a link that shows the certificate of analysis and that it has been tested for heavy metals. LJ100 is a proprietary blend made by Herbal Powers and this is the version everyone uses when they mention LJ100 on the label of their LJ100 product.

Q. I saw an ad for LJ200. What is this product?
   A. We have not tested LJ200 product so we don't know if it is effective. LJ100 is a concentrated form of tongkat ali and it is quite potent. We don't see any need to concentrate tongkat ali any further. Therefore, for the time being, LJ200 (and it is difficult to know what is in it without seeing an HPLC chemical analysis) is not an extract that we find necessary since the tongkat ali plain powder and LJ100 are quite sufficient on their own. Also, just because LJ100 uses the number 100, it does not mean it is 100 times more potent than the powder. This would likely apply to LJ200, also. If you take 400 mg of tongkat ali root powder, you will realize how potent it is, actually most prefer taking less that 400 mg of the powder. Many products have 80 mg of LJ100 in them, and we feel that is too strong and can lead to unpleasant side effects. It is naive to claim that just because an LJ100 product has 80 mg or 25 mg of LJ100 that it is equivalent to 8000 mg of tongkat ali powder or 2500 mg of tongkat ali powder, respectively. It just doesn't work that way. Keep in mind, too, that tongkat ali has side effects and taking too much LJ100 or LJ200 can be counterproductive since these can cause insomnia. And when insomnia occurs, sex drive goes down.

Q. There is a website that claims that LJ200x has 185 mg of a concentrated extract equivalent to 37000 mg of regular tongkat ali powder. Is this true?
   A. If it were, and you took 37,500 mg of tongkat ali, I doubt you would be alive, or functioning properly. We find even 400 mg of tongkat ali powder to be quite a hefty dose. Anyone who makes this comparison apparently does not fully understand the tongkat ali herb and how the extracts are made. LJ200x is certainly not 200 times as potent as tongkat ali powder. We question the reliability of the information by whoever makes such statements. Often, tongkat ali works better in low dosages than it does in high dosages since side effects are common. Just try LJ100, there is much more research done with it than a lesser known and untested extract marketed as LJ200x.

Q. I recently purchased tongkat ali extract 1:200, 200 caps at 600 mg of Tongkat Ali from Indonesia and I'm not sure if it is working or not. Based on your website taking that amount of this extract I would think I would know. Not sure whether to purchase from them again. What is your opinion?
   A. We have no idea what this product contains and, as mentioned at the top of the page, be weary of such 200 to 1 claims.

I am a health food store owner and received marketing material that LJ100 has anti-aging-enhance IGF-1, enhances sports performance, improves sexual function, increases energy, and helps with weight loss. Are any of these true?
    LJ100 does enhance sexual function, does increase energy (but we don't know if this is sustained over time), I am not sure about the weight loss part, but I do not believe it has anti-aging potential and do not think it enhances sports performance since it increases body temperature which may be counterproductive. Diet Rx works very well for weight loss.

Can you please tell me the correct dosage of tongkat ali LJ100.The bottles in my first order suggested 2 to 4 capsules daily with water and a meal, My recent order says one capsule daily in the morning on an empty stomach, can you please clarify this for me.
    There is no standard LJ100 dosage that works for everyone, hence we suggest starting with a low amount and then seeing how this affects you before taking a larger dose.

Thank you for such a great and informative site! Is there a difference between the Physician Formulas LJ100 and LJ100 from other companies? I am just confused if LJ100 is a trademark name and if it's the same wherever you get it, or if all LJ100 are different formulas. I am very new to tongkat Ali, and have done alot of research the past couple weeks. About a week ago I started on tongkat ali 1:50 extract that I got through a reseller of Sumatra Pasak Bumi. I'm very confused about the results. I read many statements that state many people get a warm sensation when they first started taking it. I didn't feel a thing, and that was with 800mgs of 1:50 extract. I also read at Dr. Sahelian's site that LJ100 is very potent and you keep it in low 25mg capsules because of powerful effects. But, I am taking 2-3 400mg capsules of the Sumatra Pasak Bumi TKA which has a 1:50 extract. That should be many, many times more potent than 25 to 50mg of LJ100 and yet I have felt pretty much nothing. So I'm afraid that I would have to take even more LJ100 (even though it's a higher extract) because of it's low mg. Since I read that LJ100 is potent and many feel the effects at low doses, maybe it works better than what I have. I'm also desperate! I'm only 31 years old, married, and have had very bad problems with poor libido, sex drive, interest, which also leads to poor performance. I do take Viagra when I can get samples from my doctor, because it's too expensive. And it does nothing for my sex drive. I'm really hoping this will work for me, because I don't know what else to do. I've tried many things, including Enzyte, which did nothing. I would like to try Passion Rx and may try ordering this. Would this work better than LJ100 alone? I don't know which Passion Rx to try, with or without Yohimbe. I have never taken Yohimbe and was a little afraid of the side effects since I have read many negative things about it. However, I have also heard it works better than most anything else. Does Passion Rx need to be taken in cycles since it has tongkat ali LJ100 in it? I heard tongkat ali won't even help with your testosterone levels after a while and that's why you have to stop and start it off and on, to trick your body. So I figured you would have to do the same with Passion Rx.
    The LJ100 from Physician Formulas and other companies are likely the same raw material from the same source if the company selling it is honest and has not mixed it or replaced it with a cheaper raw ingredient. LJ100 is a trademarked tongkat ali extract by Herbal Powers. Many people find 25 mg every other day or 2 days on 2 days off to work well, others find they need two capsules to notice it. As to Passion Rx, it is difficult to predict which form, with or without yohimbe, will work better for you since each person is different. Taking days off from the use of the sexual herbal products does make them work better. Using smaller amounts gives a more gradual response with fewer side effects and this is often preferable. However some people like to take a higher amount to notice more sexual benefits but the side effects of LJ100 such as increased body temperature, irritability, and insomnia can interfere with optimal sexual love making. 

I am interested in using either the Passion Rx formula or just the lj100 product, both as libido boosters, and as testosterone enhancement for body building. Although I have tried several other testosterone boosters (never Passion Tx or lj100) in the past they have had little effect on me, and the side "benefit" has been short-term (while using the products) difficulties with sex. (difficulty gaining erections) I have never taken either steroids or any of the prohormones. Is there any chance of the lj100 by itself or the Passion rx causing the reverse effect from what they are intended? Do either of these products stimulate the feed back loop that begins the aromatization of testosterone to estrogen? If so how long and what should I take to avoid this? How long before I should expect results or side effects while taking either lj100 or Passion Rx? If they work as libido boosters, how long before I should expect to see results?
    If used too frequently, many sex herbs or sexual products can have a reverse effect since they can cause insomnia and fatigue. It is best to use Passion Rx, LJ100, or other sexual herbal products a few days a week and take a full week off each month. Not enough studies have been done in humans to determine the hormonal effects of these herbs and they are not to be relied on for body building purposes. Most people notice sexual enhancement within 2 or 3 days. They are best taken every other day initially and then less frequently. LJ100 and Passion Rx should not be taken the same day. They work better when you take days off. In fact, the benefits are noticed also on the days when they are not used.

LJ100 Press Release - 2006
A study has demonstrated that LJ100 Eurycoma longifolia extract, standardized to 40% glycosaponins and 22% eurypeptides, known for enhancing sexual virility and overall physical endurance in men by increasing levels of free testosterone, may be equally as viable for promoting anabolic action during and after endurance training or competition. The study by S. Talbott, et al, entitled, “Effect of Eurycoma longifolia Extract on Anabolic Balance During Endurance Exercise,” sought to determine the effects of the herb specifically on cortisol and testosterone levels during high-intensity exercise. The researchers used a freeze-dried extract of eurycoma longifolia that was standardized to contain 22 percent eurypeptides and 40 percent glycosaponins. Participants were men who were taking part in a 24-hour mountain bike event. The subjects provided a saliva sample prior to and after each of four 14-mile laps; the eight samples of each participant underwent an enzyme immunoassay (Salimetric, State College of PA) to determine and compare levels of cortisol and testosterone. This was compared to placebo samples. Both placebo and supplement were taken approximately 30 minutes prior to exercise. The researchers found that cortisol levels in the LJ100 Eurycoma group were lower – 33 percent – than in the placebo group. Also, testosterone levels in the supplement group were 16 percent higher than that of the placebo group.
   LJ100 is a registered standardized, freeze-dried Eurycoma longifolia extract, containing 40% glycosaponins and 22% eurypeptides, a bioactive glycoprotein that is now clinically proven for its androgenic properties. LJ100 has undergone a patented BAT extraction process to capture 22% biologically active eurypeptides, proven in research to be responsible for increasing libido. Created by the original researchers at the Forest Research Institute of Malaysia (FRIM), University of Malaya, and Massachusetts Institute of Technology, LJ100 (22% bioactive eurypeptides) has shown - in human clinical trials - an ability to increase DHEA and free testosterone, decrease sex hormone binding globulin (SHBG), modulate cortisol, and increase IGF-1 level.
   About Herbal Powers Ingredients - Based in Bradenton, FL, Herbal Power Ingredients is a an herbal health company focused on bringing effective herbal remedies from Asia to the North American market.
   Dr. Sahelian says: LJ100 does work for libido enhancement, but LJ100 side effects can occur with higher doses. People should use LJ100 cautiously and in low doses. I have included this press release here, but I do question the interpretation of the findings. I am not convinced LJ100 is appropriate for endurance exercise, and I don't think the changes in cortisol or testosterone are significant. in any practical sense. At this point, I am not sure what glycosaponins and eurypeptides really are and who coined these terms.