Dr. Hank Sobel of Quantum Herbal Products explains why his company's liquid concentrates and salves are so effective.
As a naturopath and herbalist, I have been involved full time in alternative healing of both people and pets. Although making and dispensing my own herbal tinctures has always been an important part of my practice, I have much experience with products made by others before I began making my own. I know that, despite claims to the contrary, the vast majority of commercial herb products sold are extremely weak. Here's why our herbal formulas so potent:

They are extracted from herbs organically grown in the United States which have never been sprayed or irradiated.
Most commercial manufacturers use low-quality herbs imported from Third World countries, where they have been sprayed with pesticides. The herbs are again sprayed or irradiated upon entering this country because of U.S. Customs laws. By contrast, we use high-quality wildcrafted and organic herbs grown in this country; we use imported herbs only when we have documentation demonstrating that they have not been sprayed or irradiated.

All our products are OK Kosher Certified.
Established in 1935, the OK Kosher Certification is one of the world’s most respected symbols of kosher approval.

They contain 4 to 6 times more herbs than the National Formulary Standard.
The National Formulary Standard specifies that it is permissible to use 1 part herb to 4 or 5 parts extracting agent, such as alcohol or water. We use 1 part herb to 1 part extracting agent, making our products much more potent.

They are aged for months to maximize the potency of the final extract.
We use an aging practice that has been abandoned by most herbal manufacturers in favor of more "efficient" and less costly methods. They press out their products in a matter of hours or, at most, days.

They are hand crafted in small batches.
Our products are made by people using an exclusive alchemic process, not mass-produced by machines like most tinctures.

They are extracted using only pure organic grain alchohol or organic, raw, unfiltered apple cider vinegar.

About our water: Reverse osmosis ultra-clean, ultra-safe water is up to 99% free of unwanted substances commonly found in tap or well water. It is recommended by doctors, dieticians, and reverse osmosis users. We then combine our reverse osmosis water with distelled water to make a supurb and healthful drinking water.

They are in tinctures, not dry capsules.
A person will absorb, at best, only 10% to 15% of a dry herb, whereas tinctures immediately find their way into the bloodstream.