Raising the Bar in Purity and Transparency for Food-Grade Culinary Herbs Used in East Asian Traditions
Welcome to Clear Source Herbs!
Our Two Grades
Organic Grade
USDA NOP-certified organic herbs certified by CCOF. Additional pesticide testing and sulfur testing is performed to ensure purity. Only ND (none-detected) results are accepted.
ND Grade
Fully Tested for pesticides, sulfur, and heavy metals. Only accepting ND (none-detected) results for pesticide residue. The equivalent of "Premium Grade" herbs at Spring Wind.
Herb Grade Definitions
- No detected pesticides. (In most cases we test for close to 400 pesticides). We only accept a reading of ND (none-detected) because we do not feel we should be in the position of determining a safe level of pesticide contamination. Also, we are trying to encourage our partnered growers to use sustainable growing methods that do not use chemical pesticides.
- Each lot is tested and tracked. Testing is done mostly by internationally certified independent laboratories such as SGS, Eurofin, or Intertek. Certificates of Analysis or test results can be provided for each herb upon request.
- Sulfur dioxide - We do not accept any herbs that are processed with sulfur fumigation. We test each lot for SO2 via vapor sampling and accept only readings of 1.0 ppm or less. The choice of this level of testing is to allow naturally occurring SO2 (a natural result of decaying plant matter) yet rule out added sulfur fumigation. We sometimes also use titration testing for sulfites. We accept a non-detection result from this test.
- Other Contaminants If we have any reason to suspect contamination by other substances, we test for them as well. For example, our seeds, grains, and some dried fruits are also tested for aflatoxins.
- Heavy Metals - We have started testing each lot of herbs for amounts of Lead, Cadmium, Mercury, and Arsenic. Most herbs contain naturally occurring amounts of heavy metals, but that can be harmful in significant amounts. We only accept lots that meet our specified limits that are based on the European Pharmacopeia.
More information about our quality and be found at Quality and Testing
ND Grade Herbs
Lot-tested for pesticides, heavy metals, and other contaminants. Only accepting ND (none-detected) for pesticide results.
Chinese Yam (Large High Grade from Wu Zhi) - Dioscorea opposita Rhizoma - Shan Yao (Da Pian) - ND Grade
From $8.46
Euryale Seed - Qian Shi - Euryale ferox Semen - ND Grade
From $4.25
Pseudostellaria Root Tuber / Prince Ginseng Root - Pseudostellaria heterophylla Radix - Tai Zi Shen - ND Grade
From $12.95
Codonopsis Root ND Grade (Wild-Crafted) - Codonopsis pilosula Radix - Dang Shen (Ye Sheng)- ND Grade
From $14.50
Chinese Asparagus Root - Asparagus cochinchinensis Radix - Tian Men Dong - ND Grade
From $11.68
Aromatic Solomon's Seal Rhizome (Cut) ND Grade - Polygonatum odoratum Rhizoma - Yu Zhu (Sheng) - ND Grade
From $7.95
Rehmannia Root Prepared (9 Times Steamed) (Slice) - Rehmanniae Radix (9 times steamed) - Shou Di Huang / Shu Di Huang (Jiu Zheng Jiu Zhi)) - ND Grade
$25.00
Houttuynia - Houttuynia cordata Herba - Yu Xing Cao - ND Grade
From $4.85
Dong Quai Root - Angelicae sinensis Radix - Dang Gui (Quan Gui Pian) - Whole root sliced - ND Grade
From $10.95
Certified Organic Herbs
In the process
Tremella (Snow Ear Mushroom) - Tremella fuciformis - Bai Mu Er / Yin Er - Organic Grade
From $13.45
Dong Quai Root - Angelicae sinensis Radix - Dang Gui (Quan Gui Pian) - Whole root sliced - Organic Grade
From $10.95
Astragalus Root Organic (Cultivated) - Astragali membranaceus Radix - You Ji Huang Qi (Zai Pei, Pian)
From $6.90
Longan Fruit Dried - Longan Arillus - Long Yan Rou - Organic Grade
From $9.95
Goji Berry / Lycii Berry (Large) - Lycii barbarum Fructus - Gou Qi Zi - Organic
From $8.45
Jujube Red / Chinese Red Date Organic - Ziziphus Jujuba Fructus (Red) - Hong Zao / Da Zao (Hong)- Organic
From $6.45
Job's Tears Seed - Coicis lacryma-jobi Semen - Yi Yi Ren - Organic Grade
From $3.25
Lotus Seed - Nelumbinis nucifera Semen - Lian Zi - Organic Grade
From $7.45
Codonopsis Root (Cultivated) - Codonopsis pilosula Radix - Dang Shen (Zai Pei) - Organic
From $11.85
Schisandra Fruit - Schisandra chinensis Fructus - Wu Wei Zi - Organic
From $14.85
Chrysanthemum Flower - Chrysanthemum morifolium Flos - Ju Hua - Organic
From $17.45
Lion's Mane Mushroom - Hericium erinaceus - Hou Tou Gu - Organic Grade
From $9.45
Reishi Mushroom (Red, Slice) - Ganoderma lucidum - Ling Zhi (Hong, Pian) - Organic
From $10.67
Poria (Cubes) - Poria cocos - Fu Ling (Ding) - Organic
From $4.95
Lily Bulb (Long Ya) - Lilii browni Bulbus - Bai He (Long Ya) - Organic Grade
From $9.95
Rose Buds - Rosae rugosae Flos - Mei Gui Hua - Organic Grade
From $8.65
Bai-Zhu Atractylodes / White Atractylodes Organic (Slice)- Atractylodis macrocephalae Rhizoma - Bai Zhu - Organic Grade
From $5.25
Licorice Root, Chinese (Cultivated) - Glycyrrhiza uralensis Radix - Gan Cao (Zai Pei) - Organic Grade
From $6.95
Honeysuckle Flower - Lonicerae japonica Flos - Jin Yin Hua - Organic
From $16.95
White Peony Root - Paeoniae alba Radix - Bai Shao - Organic
From $6.80