How to Zap

Hulda Clark Zapper Instructions

it is strongly suggested to buy the book Parasite Zapping and the Zapper as it is far more complete than this page.


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Introduction, Theory of operation, Frequently asked questions, and instructions

I first heard of using the Zapper to cure diseases from Wayne Green of magazine publishing fame. In an editorial, he expanded on the virtues of the Zapper and its ability to cure diseases. For a number of years, I heard little of the Zapper until one spring, a number of the people in the office where I worked started coming down with the flu. Everyone was missing 3 to 5 days and still not doing well. This continued for a few weeks, with the cycle repeating itself. The same people, including myself were getting sick over and over again. One person in the office appeared not to be catching the flu. Then one afternoon, he suddenly came down with the bug, leaving to go home. He returned the next day, feeling fine!

When I asked him his secret, he handed me a little hand built Zapper, claiming that it helped him stay healthy. Immediately impressed, I decided to try zapping and was amazed with the results. Using the Hulda Clark Zapper, I removed the pain of a tooth infection in a day, actually, I have done this on several occasions, broke colds and the flu, chased away a bad case of IBS and Colitis, zapped spider bites, and have felt healthier since starting to use it. I also noticed later that my problem with allergies had been helped by zapping. After that, a parasite problem that I had since childhood disappeared and along with it, my candida went away. Later, I used the Zapper on several Basal Cell Skin Cancer lesions with great success. Use of the parasite zapper was first suggested by Dr. Hulda Clark in her book The Cure for All Disease.

Not being a doctor, I can not prescribe the Hulda Clark parasite Zapper to you, nor can I guarantee any results, but I do believe in its effectiveness in reducing the effects of illness. There are many testimonials on the Zapper and the curing of illness such as multiple sclerosis, cancers, colitis, and even arthritis by zapping. My wife now uses the ParaZapper Hulda Clark Parasite Zapper to reduce her arthritis problems.

How does the Hulda Clark Parasite Zapper work? The study of Radionics suggests that all organisms are susceptible to certain frequencies of electromagnetic energy. A vibration of 5 Hz will kill chickens due to resonance of their skull cavity. Many bacteria and viruses are affected by frequencies of 300 kHz to 450 kHz. Protozoa, roundworms and flatworms are affected by frequencies between 350 kHz and 500 kHz. Molds appear to be affected by lower frequencies of around 80 kHz to 220 kHz. Individual species respond to specific frequencies within these ranges.

While there are many versions of Zappers available, I have found that both 30 kHz and 2.5 kHz frequencies are important. Why both frequencies? They both have different frequency spectra. Even more important, I have found that the more frequencies that a zapper has available, the better the chance of killing any particular microbe.

All true Hulda Clark Parasite Zappers produce a square wave output. This square wave is composed of all odd harmonics of the main frequency. These harmonics effectively stretch up into the megahertz range, which is where parasites are affected. The 30 kHz frequency produces a range of frequencies that are 60 kHz apart. The 2.5 kHz range produces harmonics that are 5.0 kHz apart. Because each harmonic is weaker than the previous, The lower base frequency produces much smaller amplitudes than the 30 kHz units at any given frequency.

According to information available from the study of "Radionics", bacteria such as anthrax, chlamidia, shigella, and e. choli have spectral responses between 392 and 398 kHz. This would be near the 13th harmonic of 30 kHz, and near the 157th and 159th harmonic of 2.5 kHz. The 13th harmonic has an amplitude of 1/13th of the main frequency and the 157th harmonic has an amplitude of 1/157th of the main frequency. The tradeoff of amplitude vs. closeness to the needed frequency has to be weighed in considering desired results.

Some believed that the higher the frequency, the greater the skin effect. That is higher frequencies tend to travel along the surfaces of the body and lower frequencies tend to penetrate better. For this reason, many believe that the lower frequencies are more effective against intestinal parasites, urinary infections, and other infections that tend to occur in the various body cavities.

It might just be that the 30kHz frequency does not produce harmonics close enough to the parasite's frequency since its harmonics are 30 kHz apart while the lower frequency has harmonics that are only 2.5 kHz apart. Regardless of the reason, many users feel that the 2.5 kHz frequency is more effective.

Wrist Straps used by many Zappers are bad. These straps and cords while being convenient, are made for antistatic applications and include a high resistance (1 megohm). This steals most of the voltage that the Hulda Clark Parasite Zapper puts out and makes it much less effective, especially those with coiled cords. Note:The straps and cords sold for the ParaZapper™ are low resistance to solve this problem.

Questions and answers:

The hardest question that any user might ask is:

Does it work?

I have tested its functionality "in vitro" and it does work. It kills or prevents growth in protozoa and bacteria. Identical prepared solutions of growth media we placed side by side, with one being zapped 4 times a day and the other not being zapped. The zapped media remained clear while the other control media became cloudy with bacteria and protozoa. If you have any doubts, try it yourself. In a trial test, Dr. Robert Thiel found that 97 % of participants reported improvement within 45 days (ANMA Monitor 2(4):5-9.1998). Video: ParaZapper™ killing Protoza.In a recent test, I took pairs of samples from some nasty pond water. One sample was zapped for 1 hour the first day, then again for 1 hour the next day. On the following day, the 2 samples were examined and compared. The sample that was not zapped was still teeming with all kinds of microbes while in the zapped sample, the water was virtually devoid of any living microbes. This included scanning multiple slides of water taken at various points in the container.

Ok, so it works, how is it used?

There are now 2 basic methods. Both are similar except for the timing.

For older style zappers such as the basic ParaZapper™ is easy to use. It is provided with two hand held "paddles" one of which is held in each hand while the Zapper is running. The Power switch is turned on and zapping continues for 7 to 14 minutes ( or longer in advanced zappers, if suggested by the timing for the mode that you are using ). Seven minutes should be the minimum time on. The unit is then turned off for 20 to 30 minutes. The process is then repeated for another 7 to 14 minutes (except for advanced zappers which have their specific timing). The cycle is the repeated a third time (minimum). Repeating 4 times produces even better results according to users. It is recommended that the process be repeated once daily to prevent reinfection.

On advanced units such as ParaZapper&trade 6-Pack, CC2, UZI-3, and the new MY-3, the minimum time should be 60 minutes or even longer in the multi-frequency modes in order to cycle through all frequencies in one mode. Instructions will come with the zapper that specify the timeing for each mode. Use the timing instructions that come with the zapper. The advanced ParaZapper™ models are also easy to use. Just turn the unit on, select the mode that you ant and zap according to the time that is listed in the instructions that came with the unit. In most modes on the advanced units, only one cycle is required.

The LED on my zapper comes on, can I be sure it is working?

Yes, This is easy. Find an AM radio (FM will not work for this) and turn it on. With the zapper turned on, turn the tuning dial until a whine or squeal is heard. Turn the Zapper off and on several times. If the whine stops and starts with the off and on, then the zapper is working. Note: the LED is powered by the zapper outputs so if the LED is on, then the zapper is working. With the newer ParaZapper models, such as ParaZapper &trade 6-Pack, ParaZapper ™ CC2, ParaZapper ™ UZI-3, and ParaZapper™ MY-3 the status LED will appear yellow or amber if the unit is working correctly. The Status LED is actually 2 LEDs in one, a green LED and a red LED. As the signal toggles, they are each turned on and off alternately, which gives it the yellow or amber appearance. You will be able to see some red all the time if it is working properly. As the current increases, the green LED will become dimmer so that the LED appears more red in color. Shorting the paddles together should make the LED go completely red which shows that the unit is working properly. You may short the paddles to test the unit.

Is the Zapper safe to use?

Yes, however, you should not use any zapper or similar product if you are wearing a pacemaker of if you are pregnant. Do not over use or abuse the zapper. It is advised not to use a zapper if you have a metal stint implant in your heart. Always seek the advice of a medical professional with regards to any health issue. Zappers of various designs have been used over almost 20 years with no dangerous side effects. Use of the zapper may slightly lower blood pressure, for this reason, consult your physician if your are using blood thinners. Use of the zapper when metalic implants are present may cause irritation and other problems. This is especially true with stainless steel as it may leak nickel and/or chromium. Also, avoid the use of aluminum as this has been associated with neurological problems. There is more information about this in the booklet "Parasite Zapping and the Zapper".

Are there any side effects?

Yes, extensive use of the Hulda Clark Parasite Zapper can kill beneficial bacteria in the intestine causing intestinal irregularity. Intestinal regularity can be restored by eating yogurt and drinking buttermilk. The contacts on the wrist straps may contain nickel which can cause skin irritation. Always use a wet paper towel between the electrodes and the skin whenever you touch them. Using salt water or Epsom salts in the water will improve conductivity.

Is one brand of Hulda Clark Parasite Zapper better than another?

ParaZapper provides a stronger output than many other zappers and uses less power from the battery thereby making the battery last longer. Some other zappers cycle on and off automatically. ParaZapper™ does not because we feel that the user should have control over the length of time that they zap due to individual differences. Otherwise, most zappers perform the same function, which is outputting a 9-volt square wave at some frequency. A lower frequency of 2.5 kilohertz is probably better for some parasites as discussed above. The old ParaZapper CCa definitely produced better results according to user survey feedback. Current ParaZapper products such as the 6-Pack, CC2, UZI-3, and the new MY-3 all have the same CC ( controlled current ) output as the CCa did, however, while the 6-Pack and CC2 have Positive offset, the UZI-3 and the MY-3 have an improvement called Pedestal offset. For the absolute best results, use the copper footpads along with the copper handles.Beware of those who claim that their zapper is the best. Ask for statistical proof. Not only does ParaZapper products provide a better signal under load,

Image shows both Positive Offset
and True Squarewave under load.

ParaZapper also provides superior accuracy of frequency when compared to products costing as much as $1000.00 US or even more.

Are there brands to avoid?

There are some zappers that are not recommended, such as the Ultimate Zapper which is badly overhyped and over priced. Also, there is a $10 zapper from that has a very weak driver chip.

What happens to the parasites the are killed?

The bodies defense mechanisms have to clean up and remove the killed organisms. For this reason, you may feel fatigued throughout the day following zapping. Drink plenty of fluids and take it easy for the day. It is generally best to keep zapping so that the remaining microbes / parasites do not recover.

Does it matter which paddle goes in which hand?

No, not really, we do recommend that you swap paddles each time that you zap. Red lead in the right hand one time, red lead in the left hand the next time.

Do I have to hold the paddles in my hands?

No, some people place them under their feet, others have sat on them. This should be acceptable as long as the paddles do not touch. Some users will also place the red wire paddle directly over an area of interest to provide a more direct signal. The green wire paddle should not be placed against any area of the body as it actually provides protection against the zapper's signal. When used on the body, the green wire paddle should be under a foot or in a hand and not touching any other part of the body. There should only be one green wire electrode.

Do I need to use footpads?

While this is basically a personal choice, the use of footpads can almost double the effectiveness of a good zapper. This is important, weaker zappers do not provide enough power to properly energize the pads and paddles at the same time. Also, the Zapper is not likely to reach the internal organs without them. OH! and Yes, you can sit when using the footpads.

Should I feel anything while zapping?

While some individuals may feel a slight tingling, it is not necessary and certainly not a problem. If you are using footpads and paddles at the same time, the green wire paddle will feel much stronger as the current is divided among the 3 red wires.

Can I get electrocuted?

No, not from the ParaZapper as the current output of the ParaZapper is limited by built in resistance. Also, the output voltage is less than 9 volts which is safe in itself. Never use a battery adapter or power supply that connects to AC power. Attaching a zapper to the power mains by any means other than a device that is rated IEC60601 could be potentially lethal.


Since many allergies are the result of or are aggravated by certain parasites, relief can be obtained by removing these parasites.

IBS and colitis?

As Colitis and IBS (Irritable Bowel Syndrome) are frequently the result of certain parasites in the intestine, relief can be obtained by removing these parasites.

Note: The original zapper is not as effective at relieving ibs as it does not have the 2500 Hz frequency. Also, using the footpads and paddles at the same time is very important. Multi-frequency is even better at killing a wide range of microbes.


The case may be cleaned with a damp cloth and mild soap. Do Not soak or allow any water to get inside!

The paddles may be cleaned and shined with steel wool. Number 00 steel wool appears to work best.

Recommended: Many users also wrap the copper tubes with a damp paper towel (using a solution of sea salt ) to keep the copper off of their skin. This also reduces resistance and applies a more powerful signal to you. Using Epsom salts may be even better than sea salt.


Do not use any Zapper type product if you are wearing a pacemaker or if you are pregnant.


The Para Zapper ™ is offered only as an experimental device and in order to reduce cost, FDA approval has not been applied for. Therefore, these products have not been evaluated by the Food and Drug Administration. It is provided for informational use only and is not intended to replace the advice of a licensed professional. These products are not intended to diagnose, treat, cure or prevent any disease, disorder, pain, injury, deformity, or physical or mental condition This notice is required by the Federal Food, Drug and Cosmetic Act.


While most users with metal implants do not report problems, there may be complications from zapping if you have metal implants, especially most forms of stainless steel. ParaZapper ™ can not be responsible if you have any reactions or problems from the use of our products as the use of such is your choice.

We sell the ParaZapper to individuals as well as to Doctors and health professionals around the world.

Para Systems, Inc.
5537 Balboa Ct.
Pinson, Al. 35126

See our Video: ParaZapper™ killing Protoza.

Using the Para Zapper ™ parasite zapper

Battery Tapping?

The zapper works amazingly to kill microbes such as bacteria, protozoa, fungi, and possibly even virus in water. Since the human body is mostly water, it would make sense that it would have possible positive effects. Our zappers range in price from about $179.00 to over $600.00, depending on the model and features. If you can not afford one, simply try battery tapping. While it is only about one tenth as effective as the best zappers, it can stop a cold or flu in its tracks but may not be as effective on other problems. To try battery tapping, simply wet the index fingers of both hands. Place the index finger of the left hand on one battery terminal and tap the other terminal as fast as you can with the right index finger ( the hands should not touch each other at any time ) for 7 minutes or longer. After the 7 minute or longer time, stop and rest for 20 minutes. Repeat the tapping for the same amount of time that you did the first time, stop and rest for another 20 minutes. Then repeat for at least a third time and if possible, a fourth time. It is important to understand that tapping for less than 7 minutes can have negative effects and that tapping less than 3 times can have negative effects. Do it correctly.

Note that it is important to do this at the first symptom of the flu or a cold because the zapper only stops the progression of these conditions. The zapper can not undo what has already occurred.

How Frequently should I Zap?

The frequency and amount of zapping depends on the individual, his / her condition, and the type and extent of illness being treated. Starting out, most users zap 1 session a day for the first 2 or 3 days. Afterward, users may zap from 1 to 3 sessions a day for 2 to 6 weeks. Once parasites have been reduced or eliminated, the need to zap is reduced. A user may zap once or twice a week after this to prevent re-infection.

How Long should each zapping session last?

With standard zappers, initially zapping is for 7 minutes ( except for advanced models ) with a 15 to 20 minute resting stage in between. This is repeated 3 times minimum for each session ( It has been indicated that 4 zappings per session may produce better results. ). After the first 3 or 4 days, the user may choose to zap for 14 minute sessions ( Some individuals zap for 7 minutes at 30000 Hz and then 7 minutes at 2500 Hz followed by a 15-20 minute break. ). In extreme cases, some individuals choose to zap continuously for a full hour. This is probably less effective than having the 15 - 20 minute resting stages in between zappings. There is probably no harm in full hour zappings.

On advanced units such as ParaZapper™ 6-Pack, CC2, UZI-3, and the new MY-3, the minimum time should be 60 minutes on or longer, depending on the selected mode and timing, in order to cycle through all frequencies in the mode. Zapping will reduce your natural intestinal inhabitants. It is important to drink buttermilk, eat yogurt, or take probiotics such as acidophillus to replinish this. Actually, acidophillus is not enough so you really want to eat a good yogurt with at least 5 or 6 "live and active cultures" of different beneficial microbes. Another alternative is to drink Kimchi.

Can I eat or drink while zapping?

Always wash your hands after handling copper ( or any other metals ) before eating. For the first few days, it is recommended to eat only fresh fruits and vegetables for 2 hours before zapping if you eat at all during this period. Nothing except probiotic replenishment (Kefir, Yogurt, Smoothie) for an hour afterward, and fresh raw fruits and vegetables for the 6 hours after zapping. Why? When zapping kills microbes such as fungi that have infiltrated the intestinal walls, the dying microbes can leave microscopic holes that can take several hours to heal. This is generally referred to as micro-poration and usually goes away after a few days of zapping. It is also very important to drink lots of water before, in between, and after zapping sessions. It is needed to remove toxins and waste byproducts.

Why should I use salt water and paper towels or sponge pads?

The saline solution reduces the resistance of the skin surface and allows a stronger signal to reach your parasites. The sponge pads or even paper napkins help keep the copper off of your skin and to hold moisture. Wash out the sponges or throw out the paper towels after each session.

How can I make the saline solution?

Sea salt is preferred and is available from most grociers. Mix one teaspoonful with about 4 to 8 ounces of warm water. Soak a couple of thin sections of natural sponge or paper napkins in this solution. Wrap around the copper paddles or place under the metal of the wristbands. Some users like to use Epsom salts instead of sea salt.

How can I get the most out of my ParaZapper?

1) Use your zapper regularly after initial 4 to 6 weeks of daily parasite treatment. A couple of times a week is usually enough. This should prevent occurance of problems.
2) Use sea salt or Epsom salts ( table salt will work ) to increase effectiveness. This will reduce the effect of skin resistance.
3) Always drink plenty of good clean fresh water before, during, and after zapping.
4) Get plenty of rest after zapping. Rest gives your body time to remove unwanted byproducts and to clean itself. For this reason, many choose to zap right before bed time.
5) Switch polarity each zapping session. Use the red wire to the left arm on one session, and to the right arm on the next session. Parasites nearest the green lead probably get the least effect from zapping. Also, this tends to reduce any ionic migration effect that may be present.
Also, keep the green lead away from any part of the body as in any area that the green lead touches the parasites there will not be killed.
6) Using both frequencies will reach more parasites. Of course, using multiple frequencies can be expected to produce even better results.
7) If you need to eat, eat only fresh fruit and raw vegetables for 2 hour before and 6 hours after zapping.
8) It is recommended to eat some yogurt or drink buttermilk a few minutes after each zapping.
9) Use the copper paddles for better results as all wrist straps are less effective.
10) For even better results, use the augmentation copper footpads with the copper paddles.

What should I expect

After first zapping many individuals will either go through a phase of tiredness. Some people report immediately feeling more energetic. Others experience slight diarrhea while some experience both. Some have reported slight headaches, skin crawling, or itching skin. These conditions should not last long ( a day or so ). There have been rare cases of anxiety and heart racing, these appear to go away after a few days usage. Although there has never been a death or serious injury, use caution in making your decision about continuing.

Parasites that have died in the body leave debris that must be removed and the body may use a lot of energy doing this. Drink lots of water and get plenty of rest. Also, the loss of intestinal inhabitants can cause diarrhea. Drink buttermilk, eat yogurt, or take probiotics.

After the first few days, many users will feel a surge in energy

Usual Steps to Zapping

1) Install battery if it is not already in.
2) Prepare your salt water solution. About a teaspoon in a cup of warm water to a tablespoonful in a 10 oz glass.
3) Connect the copper foot pads if using them ( these can double your results ), copper tubes (paddles), or wrist straps ( least effective ) to your ParaZapper. Our new straps come with a 6 inch square expansion plate for improved contact area. This is better than the old 1 inch square of the straps.
(Do not use the footpads with wrist straps as serious burns may occur!)
4) Place good white paper towels (or cloth) which has been lightly wetted with salt solution around paddles or under metal plate of wrist strap.
5) If using wrist straps, put them on, one on each wrist. If these have expansion plates, put the plates on top of the wet paper towels under the metal contact of the straps ( between the metal plate of the straps and the paper towel that contacts the wrist.
6) Turn on power to your ParaZapper.
7) For dual frequency zappers, Select your preferred zapping frequency 30000 Hz with button in, 2500 Hz with button out.
For the advanced, more effective zappers, select the mode that you want to use.
8) If using copper tubes (paddles) pick 1 up in each hand and grasp firmly. There is no need to clench tightly though, just provide good contact area.
. . You may place the paddle with the red lead against an area to treat it but use only one green lead and keep it away from the body.
9) Normally, for single or dual frequency zappers, continue for 7 minutes to 14 minutes ( or as specified by the instructions if you have an advanced zapper ).
10) Turn your ParaZapper off. Set down paddles or remove wrist straps.
11) For single or dual frequency zappers, wait 20 minutes.
Many advanced zappers do not need to repeat the cycle again.
12) For single or dual frequency zappers, swapping the red and green leads, repeat steps 3 through 11 above twice more for a total of 3 zappings.
It is strongly recommended that your complete at least all three zappings for a full session. (4 zappings may produce even better results.)

Using Saline Solution for Zapping

We send out a survey to our customers after a couple of months. The important information that we have received is that those who use the saline solution report better results. This would be true for any and all zappers. Not just ours.

Importance of contact area

We send out a survey to our customers after a couple of months. The feedback that we have received is that the larger the contact area, the better the results. The best results obtained were with copper footpads and copper paddles together. The poorest results are from using wrist straps. This would be true for any and all zappers. Not just ours.

Importance of contact location

We send out a survey to our customers after a couple of months. The feedback that we have received is that multiple contact areas for the red or active lead produces better results. The best results obtained were with copper footpads and copper paddles together. The poorest results are from placing the ground or return electrode (green wire) against any part of the body. Hold the ground electrode / return electrode away from the body. This would be true for any and all zappers. Not just ours.

What do the indicators mean on the ParaZapper ™ 6-Pack, CC2, UZI-3, and the new MY-3s

The Power LED should be Yellow to Orange when the unit is working correctly. If the unit stops working, the LED will turn RED or GREEN.

Also, the green LED will dim slightly when you get good conductivity, making the LED appear more RED.

Try this, lay the paddles appart from each other and turn the unit on. While watching the LED, momentarily touch the 2 metal pads to each other. The LED will dim and shift toward RED in color. This is maximum current output. Now try putting one wrist strap on 1 wrist and touching the other to your other wrist without any moisture. The LED will probably not dim. Next try it with just a paper towel damp with tap water. You might get some dimming of the LED ( this depends on the salts in your tap water ). As a next test try the same test with the saline solution. You will see the difference.

For your last test, try the same with the copper handholds. They work much better.

The Low Battery LED will turn RED when the battery is lower than needed.

Notice: On advice of counsel, we are required to inform you that the statements and claims on this web site have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure or prevent any disease -- not for use on humans or with pets. These battery powered devices are not offered or intended for human use or to diagnose or prescribe for medical or psychological conditions nor to claim to prevent, treat, mitigate or cure such conditions, nor to recommend specific products as treatment of disease or to provide diagnosis, care, treatment or rehabilitation of individuals, or apply medical, mental health or human development principles. The devices discussed herein have not undergone evaluation and/or testing by the United States Food and Drug Administration or like agency of any other country. Risks that might be determined by such testing are unknown. The information on this site is not a substitute for medical or veterinary advice.

ParaZapper is a trademark of
Para Systems, Inc.
Lower Entrance
5537 Balboa Ct.
Pinson, AL 35126 USA
All rights reserved.