Ensuring absolute purity and quality of consumer goods is a tedious and time-consuming process. Everything from the supplier selection to the packaging process must be meticulously scrutinized and evaluated. That’s why it’s so rare to find a health product manufacturer with the highest standards in product purity testing and quality control protocols, such as the Dr. Clark Store.

Product Purity Testing20 Quality and Purity Protocols

In order to ensure the herbs and products they use are totally pure and free of all potential contaminants, the Dr. Clark Store puts everything through a rigorous testing process.

There are twenty different quality control protocols:

cGMP manufacturing:

Manufacturing facilities are certified by Pharmaceutical Consulting Services, LLC, and Consulting Services (CSI) to be in compliance with the current Good Manufacturing Practices (cGMP) of the FDA.

No flow agents:

Since the human body has to work hard to break down flow agents like magnesium stearate, these can hinder the absorption of nutrients. For this reason, the Dr. Clark Store refuses to use flow agents, even though this requires the use of more sophisticated machinery throughout the production process.


No solvents or industrial cleaning products are used in or around the herbs or other ingredients. Even the equipment and table surfaces are sanitized only with food-grade iodine, ammonia, or grain alcohol.

No ingredients you can’t pronounce:

You won’t find complicated, hard-to-pronounce chemicals on the ingredients list of any Dr. Clark product.


Supplements are never enhanced for flow, color, stabilization, or flavor. There are no added chemicals like magnesium stearate, corn starch, hydroxypropyl methylcellulose, celluose, or silicone dioxide.

Identity analyzed:

The identity and veracity of all raw materials are validated in accordance with cGMP standard operating procedures using a Syncrometer, organoleptic methods, and specialized lab equipment.

Heavy metal tested:

Ingredients are tested for all noxious heavy metals, including lead, arsenic, cadmium, and mercury.

Batch metal tested:

In addition to heavy metals, every grain and herb is tested pure for ferrous, non-ferrous, and stainless-steel contaminants.

Tested for microbes:

All supplements are thoroughly tested for microbial growth using BioLumix and other systems. If traces of aerobic content, E. coli, salmonella, yeast, or mold are found, the ingredients are immediately rejected.

Frozen for sanitation:

Herbs are frozen in commercial freezers prior to use to further ensure that no microbes could possibly survive.

UV treated for sanitation:

As an extra measure, ingredients are subjected to ultra-violet rays, a process which also kills off any remaining microbes.

Auxiliary biofeedback test:

Although it is not required by the FDA, Dr. Clark’s Syncrometer is used on raw materials to test for additional additives or harmful substances that could possibly exist within them. This process detects traces of bleach, benzene, isopropyl alcohol, dyes, molds, oleic acid, and other metallic substances.

No hidden ingredients:

There are no additives in Dr. Clark vitamins and minerals; they are all used in their purest form. Ingredients are never diluted or standardized with unnecessary materials like corn starch or sorbic acid, as seen in many other brands.

Compounded responsibly:

Effective amounts of each herb are used in Dr. Clark supplements, without adding tiny portions of other ingredients that are unnecessary. This helps to ensure the body receives the most benefit from each herb.

Wild crafted, organic:

Most herbs are wildcrafted or grown and harvested organically without the use of chemicals or pesticides. In the rare cases where this is not the case, we reject the herbs if they do not pass the quality control tests.

Whole herb:

Since any extraction technique requires unnatural processing, Dr. Clark uses whole, unprocessed herbs, as opposed to extracts, whenever possible.

No tablets:

Tablets also require processing and additives in order to retain the correct consistency and solidity. For this reason, Dr. Clark supplements are never pressed into tablet form.

Only pure capsules:

Vegetable capsules require solvents and chemical compounds in order to become stable, which is why Dr. Clark only implements pure gelatin capsules made from BSE-free hide.

Made in USA and sourced in USA:

All raw materials are bought in the United States, and Dr. Clark products are tested and made in the USA as well.

Hand crafted:

Since our supplements are carefully crafted by hand, the production process remains safer, purer, and more potent than faster mechanized methods.

 Additional Information

After such a rigorous product purity testing process, it would seem that the Dr. Clark Store supplements and health supplies could be the most chemically-pure available. You can browse through some of  Dr. Clark’s natural health products in the Living Clean store, or read more about Dr. Clark: