Please understand we cannot answer any medical questions for many reasons: We are not doctors, FDA forbids it, liability, and more. We have tried to answer all the product questions here, please feel free to call us at 866-DR-CLARK (372-5275) should you need additional help. You can find all our contact information, including business hours here.

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Para-Cleanse  General Product Info Measurements
Dental  Iodine Sources/Derivatives
Water Filters Misc.  Shipping




Para-Cleanse Info

Q: How long should I do the Para-Cleanse?
A: First do the 18 days according to the handy chart. Look at those first 18 days as a way for your body to gain tolerance for taking those strong herbs. If you would not gradually increase you could get quite sick after taking a large dose. 

The first 18 days deliver only about 10% of the full benefit of the Para Cleanse. You need to do the Mega Dose on an empty stomach as outlined in Dr. Clark’s Para Cleanse Maintenance Program: 7 x Cloves + 7 x Super W + 2 teaspoons Green Tincture of Fresh Black Walnuts.

Take the Mega Dose once per week for a minimum of 4 weeks to gain 80% of the benefits of the Para Cleanse.

NOTE: Other Para Cleanse Programs are also available, including the Dr. Clark Para Cleanse Plus

Attention: You only get about 10% effects of the Para-Zap cleanse during the first 18 days.

Q: How much do I need of the Black Walnut, Cloves and Super W, for the 18 day Para-Cleanse?
A: Black Walnut = 4 tsp, Cloves = 95 capsules, Super W = 70 capsules

Q: How many capsules of the black walnut hull do I take to equal the 2 tsp dose of Black Walnut Hull Tincture?
A: 2.5 capsules for 1 tsp and 5 capsules for 2 tsp

Q: Regarding black walnut, cloves and super W, what size is the pill, 0 or 00?
A: Cloves are 0, Super W are 0, and Black Walnut capsules are 0

Q: Does your Freeze-Dried capsule version of the Black Walnut Hull contain mint leaf?
A: The freeze-dried capsules contain peppermint leaf powder in order to ease the load on the stomach and make it easier to digest.

Q: Are Black Walnut and English Walnut the same?
A: Two major varieties of walnuts are grown in the United States—the English walnut and the black walnut. The English walnut originated in Persia, and the black walnut is native to the United States. Commercially produced varieties are nearly all hybrids of the English walnut. California produces 99 percent of the nation’s commercial English walnuts with almost all production taking place in the Sacramento and San Joaquin valleys.   

The black walnut is of high flavor, but due to its hard shell and poor hulling characteristics, it is not grown commercially for nut production. The Northern California black walnut is primarily used as the rootstock for English walnut cultivars. The Eastern American black walnut is grown east of the Rocky Mountains primarily for wood and veneer.  

Q: Where can I find grain alcohol?
A: You need to place a special order for it from a liquor store.

Q: Is your Para cleanse similar to Clarkia?
A: No. Dr. Clark favored wormwood and cloves in whole-herb form over tincture form, such as Clarkia.

Q: What is Niacin used for?
A: This product can be used with the Parazap cleanse. It may help to reduce the side effects (dizziness) of the alcohol in the black walnut tincture.

Q: Would Niacin cause me to flush?
A: Niacin may cause you to "flush", causing temporary warmth and redness in the face. If you are worried about flushing we may suggest Niacinamide.

Q: Why doesn’t your kidney cleanse contain lobelia? Is there something wrong with it?
A: We follow Dr. Clark’s protocols whenever possible. Lobelia is listed with US Government to be hazardous and this is why our insurance company is reluctant to insure us if we include it. We don’t think lobelia is dangerous the way Dr. Clark used it; however we cannot include it in the kit.

General Product Info

Q: Are your products organic?
A: We do not claim that out products are organic. Although we try to source organic or wild crafted raw materials, if a raw material does not pass our testing procedures for potency and purity, we will not use it. Furthermore, our manufacturing facility is not registered by the US government to process certified organic foods, and therefore we cannot claim our products are organic.

Q: Are your products gluten free?
A: Yes, all of our products are gluten free.

Q: Is your rice flour gluten free?
 Our rice flour is gluten free and does not contain corn. It is a white rice powder.

Q: Are your herbs irradiated?
All of our herbs are non-irradiated. (Not having been exposed to radiation.)

Q: Why are some products labeled as “Proprietary Blend”?
A: Some of our herbal supplements are listed as a Proprietary Blend instead of indicating the milligrams of each herb. We do this to keep the price as economical as possible. If we were to state the milligrams for each herb in a single formula, we would routinely have to perform potency testing to comply with GMP regulations. We feel this test is unnecessary because we perform identity testing on every herb that arrives at our facility using HPTLC (high performance thin layer chromatography), the best method possible. Performing this extra test only adds cost. If you would like to know the ingredient proportions for any of our products, please don’t hesitate to ask us. We’re more than happy the tell you.

Q: Which capsule is bigger the 1 or the 00?
A: 00 is the largest, followed by 0, 1, and 4

Q: What does HDPE stand for?
A: High Density Poly Ethylene. This is the plastic that Dr. Clark finds least polluting.                                                                                                                                                                    


Q: What are our Gelatin Capsules derived from? Do they contain Porcine?

A: Dr. Clark discovered that capsules made from vegetables are typically polluted with chemicals from the extensive processing required during manufacturing. We use easy to swallow gelatin capsules made from bovine hide and are certified to be BSE free, they do not come from bones.

Our outer gelatin capsule shells are:

Halal certified
Kosher certified
Certified BSE-Free
100% bovine hide gelatin

Made from:
Beef Hide Gelatin…… 105.95 mg

Purified Water……… 18.72 mg

Q: Are any solvents used in the manufacturing process of the veggie capsules?
No solvents are used in the manufacturing process of our veggie capsules. Sources include polymers derived from vegetable sources.

Q: How much calcium does calcium citrate contain?
A: The 760mg represent the total mg of calcium and citrate combined. Each capsule contains 200mg of calcium and 560 mg of citrate. Therefore, two capsules equal 400mg of calcium, and 1,520mg of Calcium Citrate.

Q: Pepsin derived from?
A: Pork

Q: Pancreatin derived from?
A: Pork

Q: Papain derived from?
A: Papaya

Q: Bromelain Derived from?
A: Pineapple

Q: Trypsin derived from?
A: Pork


Water Filters                                                                                                                                                              

Q: How often should the charcoal be replaced in the whole house filter?
A: Every 3 to 5 years, depending on use.

Q: Do I have to purchase a gas powered water heater in order to make the Dr. Clark Whole House Filter work?
A: No. If you have access to gas to heat your water in a gas powered water heater then that is preferred but not absolutely necessary. The reason for this is that electric heaters work by heating the water with elements that pollute the water slightly. How you heat your water does not affect the performance of our water filter, it just gives you the additional benefits of not polluting your water with ions of heavy metals emitting from your heating elements. Gas powered water heaters heat the water "slower" and are lined with glass that protects the water from contact with metal. Our filter focuses on taking out organic solvents, such as chlorine, oil and benzene. It takes out some minerals, but not all.

Q: How often do I need to change my counter top/shower filter?
A: The manufacturer recommends every 6 months. If you are following Dr. Clark’s protocols, you need to change the charcoal every month.

Q: Do you need to turn off the water in your house to change the filters in the Version 3 Whole House water filter?
A: No, simply turn off the Red By-Pass Values that are right behind the filter head. Let the water drain and change the filters.

Q: What type of water do you use when manufacturing products?
We use deionized water, which comes from specialized deionized tanks for most of our products. Expect our green black walnut tincture, which is from our Whole House Water filter.


Q: How can I change or cancel my product subscription?
A: At this time, the app we use for product subscriptions cannot be changed by the customer. We are looking into alternative subscription apps that will allow our customers to change or cancel product subscriptions themselves. If you require assistance to modify your subscription in any way, please contact our customer service team directly. Email service@drclarkstore.com, or call 1-866-372-5275.                                                                                                                                                                   

Q: Where can I find a freezer that goes 20 degrees F below zero? (Instructed by Dr. Clark on pg. 374 of CAP)
A: Sears Item# 04603800000 Model# FCCS071FW It goes -20c.


Q: How will my order be shipped if I choose standard shipping?
A: Most orders under $50 are shipped USPS. For orders over $50 our shipping department will use the most economical method between USPS and UPS. There are exceptions, depending on the weight of the products. If order is on the heavier side, it will be shipped with UPS.