SELECTION

Experts select from the finest quality raw herbs, grown in the most suitable regions and harvested at the precise time for optimum active ingredients.

SCREENING

When the fresh herbs arrive at our state-of-the-art processing facility, they are diligently screened for harmful substances such as bacteria and heavy metals. Materials that do not meet the Evergreen's exacting standards are immediately rejected.

COMPREHENSIVE ANALYTICAL TESTING

Next, the herbs must pass rigorous laboratory analysis process:

• Macroscopic and Organoleptic Testing

These tests are performed utilizing visual analysis of a botanical's unique features as well as brewing the herb to verify its taste, aroma and color.

• Thin Layer Chromatography (TLC)

Used to identify active components and constituents, a chemical "fingerprint" that guarantees authenticity. This step is crucial for precious or expensive botanicals as there are many fake herbs in the market that cannot be distinguished visually.

• Microscopic Image Analysis

Microscopic features are analyzed to verify that there are no variances or adulterants present.

• High Performance Liquid Chromatography (HPLC)

HPLC testing is used to confirm potency and consistency by ensuring that the active and marker compounds such as flavonoids, alkaloids and polyphenols are present in their proper ratios.

FORMULATION AND EXTRACTION

• Unique Pre-Extraction Methodology

Unlike other companies, all of our herbs are thoroughly washed to remove soil, sand and other foreign materials to prepare them for a unique Pre-Extraction Methodology, during which time the herbs may be roasted, baked, stir-fried or even wine-fried according to the strict tenets of TCM. This crucial step in conjunction with our "No Compromises" philosophy serves to further distance us from the competition.

• Water Extraction Under High Pressure, Low Temperature

Our herbs are extracted in softened and purified water only, in sealed, temperature-controlled clean-rooms. Our herbs are not subjected to heavy metals from tap water or industrial solvents such as acetone or hexane. These substances destroy the natural flavor and leave residues that may be harmful to the body. The extraction process is specifically tailored to the individual nature of each herb in order to maximize the potency and purity of our products. This unique high-pressure low temperature extraction method surpasses the competition's low temperature only technology. These proprietary techniques allow us to maximize the integrity of the final products by minimizing the amount of time required to obtain all of the active ingredients.

VACUUM EVAPORATION AND GRANULATION

In a totally enclosed chamber, protected against cross-contamination, the concentrated herbal extract undergoes a special drying process to produce fine granules.

QUALITY ASSURANCE

Evergreen firmly believes that herbal products must be made with pharmaceutical precision to achieve their optimum potency, purity and safety. Our herbs are manufactured in Taiwan under pharmaceutical GMP guidelines, which meet or exceed the standards of Western GMP guidelines for botanicals.

In addition, our Quality Assurance experts perform qualitative and quantitative tests on every batch of products to guarantee its purity, potency and safety. A Certificate of Analysis is provided with every batch of final product.