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Thread: Prohormone FAQ

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    LM1332 Guest

    Prohormone FAQ

    By pogue
    Revision 1.3 - 6/12/03

    Special thanks to Tkarrde & roobear

    Included here are some of the most common questions asked about prohormones. This has been compiled into information based on some scientific studies, but mostly from user feedback after years of success using prohormones. Please keep in mind that this document might have some errors and you will need to do much more reading before you decide whether or not use prohormones.

    1. What are prohormones?

    Prohormones are synthetically manufactured compounds which convert to anabolic hormones via enzymes in the liver; hormone precursors. They are commonly abbreviated as PHs.

    2. What are they used for?

    Prohormones are used by athletes looking to increase size, strength, endurance, reduce recovery time or add lean body mass. They are most often used for increasing muscle mass or reducing bodyfat levels. Life extension groups are also increasingly using prohormones as a means of hormone replacement therapy, as an alternative to prescription drug use.

    3. Do they have side effects?

    Yes. Prohormones can have the same side effects as anabolic steroids , and are dependant upon the user as to which side effects one might experience. Some side effects are acne, hair loss, breast tissue enlargement, and prostate swelling. The potential for these side effects does exist, but it can be reduced if one uses proper precautionary measures (see below). Generally, if a person is genetically predisposed to a side effect it will occur (i.e.: if someone has a history of male pattern baldness in the family, it could be assumed that this could be a side effect experienced if certain prohormones are used)

    4. Which prohormones convert to which compounds?

    Here is a list
    4 androstenediol (4AD or 4diol) converts to testosterone
    19 nor-4-androstenediol (Nordiol or nordiol) converts to nortestosterone or nandrolone
    1 androstenediol (1AD) converts to 1-testosterone (dihydroboldenone)
    1,4 androstenedione and 1,4 androstenediol (1,4andro or Boldione) converts to boldenone and slightly converts to estrogen (the diol version does not convert to estrogen)
    5 alpha androstenediol (5AA) converts to DHT
    3 beta androstenediol (3 beta) converts to DHT
    3 alpha androstenediol (3 alpha) converts to DHT
    4 hydroxy androstenedione converts to 4 hydroxy testosterone which is an aromatize inhibitor (blocks formation of estrogen)
    7-KETO-DHEA does not convert to any active anabolic compounds
    1-testosterone (1-test) is already an active compound and does not need to undergo conversion

    Compounds you want to avoid.
    5 androstenediol (5AD or 5diol) converts to testosterone at a very low rate and is an estrogen agonist
    4 androstenedione (andro) converts to testosterone and estrone (estrogen)
    19 nor-4-androstenedione (norandro) converts to nortestosterone and estrogen
    DHEA converts to androstenedione and can be converted to all other hormones
    Pregnenolone converts to progesterone and can be converted to all other hormones

    5. How do prohormones work?

    Basically, when they are administered into the system, they are broken down in the liver and converted to their target hormone via certain enzymes. There have been a number of quotes describing how much of the hormone is converted, but there is no definitive answer as to how much of the prohormone is converted into its target active. Once a certain amount is created, the enzymes used for conversion become saturated and no more can be converted. This is true with all the compounds, except for 1-testosterone which really isn’t a prohormone.

    6. What do the target hormones do?

    Each hormone works in different ways once it is converted, but essentially it attaches to an androgen receptor in the cells of your body. This in turn increases nitrogen retention and protein synthesis, meaning that your body is in a constant anabolic state (assuming you are continuously supplying your body with the hormone). Here is a brief description of each hormone and what it does.

    Testosterone is the primary male hormone responsible for development of the sex organs and muscle growth. Testosterone is both anabolic and androgenic —anabolic meaning it causes muscle growth and androgenic meaning that it causes development of secondary sex characteristics. Testosterone converts to both DHT and estrogen in its parent form. Testosterone is often the primary hormone used on a cycle of steroids . It is a mass builder, and will often help with unwanted androgenic side effects of other steroids. Although conversion to estrogen can cause many unwanted side effects on its own, testosterone should generally be the base to any cycle.

    Nandrolone is an anabolic hormone, with not as much androgenic potential. It attaches to the androgen receptor with greater affinity than testosterone, but can cause a loss of libido and generally stays active in the system much longer than does testosterone. This is the “safest” choice for users who want to avoid most common side effects.

    DHT (dihydrotestosterone) is the primary androgenic hormone in the body. It is responsible for increases in strength, as well as most of the unwanted side effects common with steroids. DHT is converted from testosterone via the 5 alpha reductase enzyme. DHT receptors are high in the scale, skin and prostate; high DTH levels are the most common cause of prostate swelling, acne, and male pattern baldness.

    Boldenone is a veterinary hormone, which is commercially sold as Equipoise . Equipoise is known as an alternative to nandrolone when using steroids. It provides an increase in appetite, with some fat burning potential. Boldenone converts to estrogen at about half the rate of testosterone. Those who are looking to avoid some of the stronger androgenic side effects also commonly use it. 1-testosterone is the 5 alpha reduced version of Boldenone.

    7. How do I take prohormones?

    There are three common routes of administration for prohormones. These are usually based on their efficacy (i.e. how much is absorbed). Since the liver and stomach lining breaks down prohormones rather efficiently, taking them orally is the poorest route of administration. Most users prefer transdermal (topical) administration. When taken this way, you apply it to your skin and it will continue being absorbed over a period of 12 hours or so. Cyclodextrins or sublingual methods are also commonly used, which is where the prohormones are dissolved under the tongue. This also has a high level of absorption and works well. There are also some products on the market which are sold as “intraoral” or “intranasal”. These are meant to be sprayed into the nostril prior to your workout, and are generally only meant as preworkout boosts, not for a cycle of prohormones.

    Some manufactures have started selling prohormones in oral form with an ester attached. This, in theory, will allow it to be slowly absorbed for many hours similar to the other methods, but to my knowledge, there have been no studies demonstrating that this method increases bioavailability.

    8. What is a cycle? What does stacking mean?

    A cycle is generally used to describe a length of time and common dosage when taking prohormones. Stacking means taking more than one prohormone at a time to increase gains or reduce side effects. Common cycle lengths are 2 weeks, 4 weeks, 6 weeks, and 8 weeks. I recommend 4 week cycles, which seem to give the most gains with fewer sides. I would not recommend going beyond 8 weeks.

    Common stacks are 4AD and Nordiol, 1AD and 4AD, 1-test and 4AD, etc. You will notice most everything is stacked with 4AD. This is because testosterone gives you a bit more leverage, providing good gains and overall anabolism, with reduced androgenic side effects. Each of the prohormones can be taken alone, or taken together. The choice is yours and should be made from reading this text, and all the user feedback from this board and others. Research, research, research!

    9. What is post cycle therapy ?

    Post cycle therapy is a tried and true method of helping to solidify your gains by raising natural testosterone levels and lowering estrogen levels once your cycle is over. When you add external hormones to your body, your own natural production becomes suppressed. Your body attempts to compensate your endocrine system by stabilizing the other hormones, which results in an increase in estrogen. Once you quit supplying your body with external hormones, your natural testosterone will be low and estrogen will be high. Therefore, anti-estrogens are taken to halt the manufacture of estrogen in the body. This will result in higher testosterone levels, hence making it easier to keep your gains. Post cycle therapy should begin the next day after the prohormones have stopped being taken. Common post cycle therapy drugs are listed below with dosages:

    6oxo is an aromatize inhibitor sold by Ergopharm. It is the best over the counter anti-estrogen available for post cycle use.
    Week 1 – 600mg daily in two divided doses, morning and night
    Week 2-3 – 400mg daily
    Week 4 – 300mg daily

    Note: 4 hydroxy androstenedione acts as a weak androgen and can cause further suppression of natural testosterone, but can be used post cycle.
    Dosages should be 250mg a day for the first two weeks, followed by anywhere from 50-250mg a day for the next two.

    Clomid is a prescription fertility drug, but is highly available and highly effective at blocking estrogen and increasing LH output.
    Day 1 – 300mg
    Day 2-11 100mg
    Day 11-21 50mg
    150mg daily for 2 weeks
    100mg daily for 2 weeks

    Nolvadex is also a prescription, which is highly available and blocks estrogen at the receptor.
    Week 1-2 – 40mg daily
    Week 2-4 – 20mg daily

    There are other prescription anti-estrogens available, but these two will be fine unless side effects arise, so we won’t discuss the other options in this FAQ.

    Other common post cycle favorites including high doses of flax oil, ZMA, tribulus and an ECA stack coupled with reduced training volume and increased calories (500 or so above maintenance). But, it is very important to use an anti-estrogen for post cycle. I would never recommend not using one unless the cycle length is 2 weeks or less.

    10. What dosages should I use?

    Dosages are different for the different routes of administration and for the different hormones taken. Here is a basic outline of each prohormone along with general cycles used, based on user feedback. For your first cycle, I recommend sticking to a lighter dosing schedule for 2-4 weeks. Note: This is a general guideline. Dosages for any cycle can be higher or lower, and some products may incorporate one or more of these compounds so that the below amount might not be able to be achieved. This is just a basic outline and is far from completely accurate.


    1AD is by far the most popular prohormone. It is considered to be the most effective taken orally, and has resounding user feedback. It is best stacked with 4AD to reduce side effects, the most common of which include lethargy and reduced libido. 1AD should not be used transdermally, and could be used sublingually, although there are few products with this delivery system used. 1AD is commonly stacked with 4AD and shouldn’t be stacked with nordiol, or the DHT precursors.

    4-6 week cycles are best taken at anywhere from 300-900mg daily. Take in divided doses throughout the day to keep blood levels elevated.


    4AD is the next best. It is almost always used with other hormones due also to its resounding user feedback and adding large amounts of mass from increases in testosterone and estrogen. 4AD can be taken orally, transdermally, or sublingually.
    2-6 week cycles are generally used. 4AD can be stacked with just about anything.

    300-1500mg daily. Oral is probably the worst way to take this, but if you are simply looking to reduce sides of 1AD, etc – it works. Take in divided doses to ensure elevated blood levels.

    400-600mg daily with two applications in morning at night.

    Probably 15-50mg at a time, 3 times or more daily in divided doses.


    Nordiol is the best prohormone for use by people who want to avoid the common androgenic sides associated with the other hormones. Can be taken orally, transdermally or sublingually. 2-4 week cycles recommended. Heavily suppressive, despite what literature says. Nordiol is commonly stacked with 4ad for mass, or 1,4andro for cutting or users wanting reduced sides effects.

    500-800mg daily in divided doses

    500-800mg daily in split doses morning and night

    15-50mg in divided doses


    1,4andro is renowned for causing appetite stimulation. It’s low in estrogenic sides and good for cutting or bulking. Some people claim that transdermal administration works well, but the feedback I’ve seen has been poor. Oral seems to be the route of administration, and the dione version appears to work better than the diol. 1,4andro can be stacked with just about anything. Taking 1,4andro for less than 4 weeks is generally a waste because it takes quite a while for the effects to kick in.

    300-600mg daily in divided doses.




    1-test is the active form of 1AD and is best taken transdermally or sublingually, although oral products suspended in oil with an ether attached also have very good feedback. 1-test is best stacked with 4AD for mass or 1,4andro for cutting.

    150-300mg when taken in ethergel product in divided doses

    200-500mg daily or more in split doses

    Not sure

    5AA/3 beta/3 alpha

    These all convert to DHT at different rates and have slightly different properties. I’m a little hazy on all of them, except that 5 alpha can compete with estrogen for receptor activity when converted to DHT. Some people have used 5AA in an oral product as a preworkout boost, while others have used 3 alpha for a “hardening” agent.

    Thanks to roobear for the below info on DHT precursors

    3-alpha/beta will illicit exactly the same anabolic/androgenic responses, differing only in their conversion rates - 3-alpha 43% / 3-beta 9% respectively. The bioavailability of 3-alpha/beta is purported to be relatively low (by Bill himself) and thus would serve well to be administered transdermally. These compounds are best used in conjunction with other compounds, preferably of an anabolic nature (ie Nordiol, 1,4 Andro and 4-AD) - inducing drastic increases in strength, vascularity and muscle hardness.

    100-300mg (lower dosage being more of a "stacking" quantity)

    50-150mg (lower dosage being more of a "stacking" quantity)

    Outdated - use 3-alpha

    200-500mg(lower dosage being more of a "stacking" quantity)

    This is slightly out of the scope of this FAQ, but is generally used for cutting. This has been shown to increase thyroid output and lower cortisol levels, without converting to target hormones. Used for cutting stacked with other thermogenic compounds for 4-6 weeks.

    200mg in two divided doses

    100mg daily

    11. Are prohormones legal?

    Yes, currently they are legal in the US and some other countries. Please visit and write your politicians to ensure they stay that way. Prohormones are not tested for in job drug tests, but they are probably banned and can potentially show up on a drug test for athletics. Check your local laws for specific information.

    12. Who should use prohormones?

    Mature adults above the age of 21 looking for increases in lean muscle mass or decreases in bodyfat levels. Most veterans will advise using prohormones after several years of training, to ensure you have a good feel for proper diet, nutrition and supplementation. Using prohormones under the age of 18 is a very bad idea; it can result in the closure of growth plates, thus resulting in permanently stunted growth; it can also result in potentially serious endocrine system problems. Those with potential for or already enlarged prostate or those susceptible to male pattern baldness should not use prohormones; nor should prohormones be used by people with heart conditions, who currently have gynocomastia, or have liver or kidney problems. If you have any doubts, see a doctor before using these compounds.

    13. Can I take prohormones along with steroids?

    This is a hotly debated subject. Yes, you can – but why? If you have access to steroids, why would you bother with prohormones? Anabolic steroids are already hormones in their current form and require no conversion – hence, they are more powerful, albeit illegal.
    The only compound I would say that you could take with any other steroid would be
    1-testosterone, which would be an equivalent of Primobolan or Equipose. The only other thing I can think of would be taking 4AD with Fina to reduce side effects. There is more information about this on boards like ************* or Animal’s board.

    14. How can I avoid some of the potential side effects associated with prohormones?

    There are certain ancillary compounds available to treat potential side effects of prohormones. Below is a list I compiled which is pretty basic and should help clarify some of the issues of side effects.

    Prostate Issues

    The prostate is an organ at the neck of the bladder where it joins the urethra. It is responsible for controlling urination and ejaculation. Common symptoms of prostate problems are frequent or difficult urination, dribbling when urinating, erection difficulty, and pain in that general area. Either a rise in estrogen or DHT levels from increased testosterone, etc., probably causes this. If you have ongoing prostate issues, it’s best not to use prohormones, though potentially the use of nordiol might be acceptable.

    Herbal treatments:
    Saw Palmetto Extract – Usual dosage is 160mg several times daily
    Beta sisterol or plant phytosterols – 300mg several times daily
    Flax seed oil – anywhere from 5-20 tblspoons daily

    Prescription Treatments:
    Proscar/Propecia – blocks the conversion of testosterone to DHT. Ineffective with DHT derived hormones (1-test, 1ad, 5aa, etc)
    Spironolactone – an anti androgen. Best not used for this, but used topically (more below)


    Acne is very common on prohormone cycles, and can range from mild to moderate. It will go away once post cycle treatment concludes, or within a few weeks of cession of the product. The best way to treat acne is with the soaps available at your local grocery store or pharmacy. Just pick up some Neutrogena or whatever and scrub your face twice a day or use the body wash.

    Hair Loss

    Hair loss is caused by increased levels of DHT. Since DHT receptors are heavy on the top of the scalp, some people will notice a lot of shedding or a receding hairline on some cycles. There are various treatments for this; the most common is topical Spironolactone available from Nizoralman or Dr. Lee. The 2% will work as a preventative measure, while the 5% will attempt to help grow some hair back. There are also other methods, such as azelaic acid or Nizoral shampoo, but they are not proven to be effective as spiro is.
    If you are concerned you are losing your hair and are currently taking something to help prevent it, prohormones are probably not the best idea. If still interested in using prohormones, Nordiol might be the best option available to you.


    Gynocomastia, or development of the breast tissue, is sometimes common among aromatizing (converting to estrogen) prohormones. The first symptoms are puffy and itchy or swollen nipples. If you start to notice this while on a cycle, you need to start taking Nolvadex immediately. Formasin/Aromazap/Formastat might work, but 6oxo is not going to help this in most cases, so Nolvadex should ALWAYS be on hand for this situation. It is highly available, not very expensive, and not illegal to posses, so there is no reason not to have it. Don’t wait and order some when you start to get the first signs of gyno, because Nolvadex needs to be taken as soon as symptoms of gyno appear. Start taking 40mg a day until the symptoms subside, and you may want to continue to take 10mg the rest of your cycle as precaution.


    Prohormones have to pass through your liver in order to convert, no matter what the route of administration, so higher levels of liver enzymes in the blood is common during a cycle. Many steroid users take Milk Thistle and ALA at high doses to combat this, and if you are concerned it would be a good idea to take one or both of these to help that. Problems with kidneys have not been an issue to my knowledge, but steroid users will often also take cranberry juice extract to help with that.


    Some people report mild or moderate depression, especially post cycle when using 6oxo. This can be cured with prescription drugs such as Zoloft, Prozac, Paxil, etc. It can also be fought with herbal supplements such as St Johns Wort, 5-HTP or Sam-E. If you go with the herbal route, St Johns Wort should be 300mg 2-3 times daily, 5-HTP at 100mg several times daily, or 100-200mg of Sam-E once daily. You can combine all three if depression is extreme, otherwise my pick would be St. Johns Wort.

    Testicular Atrophy

    Many users report testicular shrinkage during a cycle. The testes will come back to full size once you start post cycle. If they do not, then it’s recommended you take Clomid and possibly even HCG to help restore them.


    Some people report having trouble falling asleep or staying asleep on a cycle. My recommendation is to take 1mg to 3mg of melatonin 30 minutes before bed time. Some other options are Valerian root, GABA, Tylenol PM or Kava Kava (potentially stressful on the liver).

    15. What kind of training should I use when using prohormones?

    Everyone has their own opinion on this, and you should use whatever works for use. Most people put an emphasis on higher volume while using prohormones, and you can add more isolation sets and workout more frequently due to increased recovery time. But don’t overtrain. Just because you’re using prohormones doesn’t mean you need to train daily or twice daily. Also, doing cardio on prohormones is fine. I recommend 2-3 times weekly of 20 minutes, if at all.

    16. How should I eat when on prohormones?

    Try and eat 1-2g of protein per pound of body weight. Try and eat 500-1000 calories above maintenance, or more if bulking. Generally, standard nutrition guidelines should be followed. If cutting, try and eat 10-12 calories per pound of bodyweight, while keeping protein high.

  2. #2
    bigsd67's Avatar
    bigsd67 is offline Anabolic Member
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    Oct 2002
    fcuking fantastic post...should be made into a sticky thread!

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    LM1332 Guest
    I know right should be a freaking sticky for a fact

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  5. #5
    LM1332 Guest
    just make this a sticky already god **** hehe or an faq for newbs

  6. #6
    LM1332 Guest
    oh man this is an old thread haha bump

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    bigordie is offline Member
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    Jun 2004
    awsome post bro...

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