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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

-Organic Grade
Organic Grade herbs and foods are grown without chemical pesticides or chemical fertilizers. We work with California Certified Organic Farmers (CCOF) as our certifying agency and all organic products are compliant with the USDA NOP (National Organic Program). Our organic herbs also go through an independent pesticide screening to insure its pureness. 
We whole-heartedly support organic farming not only for the purity of the herbs or foods but for the benefit it provides for the people doing the farming and for the environment in general. We feel the holistic approach to healing that characterizes Traditional Chinese Medicine begins with an attitude that treats the earth with respect and the realization that the health of the environment and the health of the body are not separate.
 
-ND Grade (Equivalent to Spring Wind's Premium Grade)
ND Grade herbs are high quality herbs or foods that meet the following requirements:
  • 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
Chinese Yam (Large High Grade from Wu Zhi) - Dioscorea opposita Rhizoma - Shan Yao (Da Pian) - ND Grade
Coming Soon !

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
Euryale Seed - Qian Shi - Euryale ferox Semen - ND Grade

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
Pseudostellaria Root Tuber / Prince Ginseng Root - Pseudostellaria heterophylla Radix - Tai Zi Shen - ND Grade

Pseudostellaria Root Tuber / Prince Ginseng Root - Pseudostellaria heterophylla Radix - Tai Zi Shen - ND Grade

From $12.95

Aromatic Solomon's Seal Rhizome (Cut) ND Grade - Polygonatum odoratum Rhizoma - Yu Zhu (Sheng) - ND Grade
Aromatic Solomon's Seal Rhizome (Cut) ND Grade - Polygonatum odoratum Rhizoma - Yu Zhu (Sheng) - ND Grade

Aromatic Solomon's Seal Rhizome (Cut) ND Grade - Polygonatum odoratum Rhizoma - Yu Zhu (Sheng) - ND Grade

From $7.95

Codonopsis Root ND Grade (Wild-Crafted) - Codonopsis pilosula Radix - Dang Shen (Ye Sheng)- ND Grade
Codonopsis Root ND Grade (Wild-Crafted) - Codonopsis pilosula Radix - Dang Shen (Ye Sheng)- ND Grade

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
Chinese Asparagus Root - Asparagus cochinchinensis Radix - Tian Men Dong - ND Grade

Chinese Asparagus Root - Asparagus cochinchinensis Radix - Tian Men Dong - ND Grade

From $11.68

Houttuynia - Houttuynia cordata Herba - Yu Xing Cao - ND Grade
Houttuynia - Houttuynia cordata Herba - Yu Xing Cao - ND Grade

Houttuynia - Houttuynia cordata Herba - Yu Xing Cao - ND Grade

From $4.85

Certified Organic Herbs

In the process

Goji Berry / Lycii Berry (Large) - Lycii barbarum Fructus - Gou Qi Zi - Organic
Goji Berry / Lycii Berry (Large) - Lycii barbarum Fructus - Gou Qi Zi - Organic

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
Jujube Red / Chinese Red Date Organic - Ziziphus Jujuba Fructus (Red) - Hong Zao / Da Zao (Hong)- Organic

Jujube Red / Chinese Red Date Organic - Ziziphus Jujuba Fructus (Red) - Hong Zao / Da Zao (Hong)- Organic

From $6.45

Astragalus Root Organic (Cultivated) - Astragali membranaceus Radix - Huang Qi (Zai Pei, Pian)
Astragalus Root Organic (Cultivated) - Astragali membranaceus Radix - Huang Qi (Zai Pei, Pian)

Astragalus Root Organic (Cultivated) - Astragali membranaceus Radix - Huang Qi (Zai Pei, Pian)

From $9.46

Codonopsis Root (Cultivated) - Codonopsis pilosula Radix - Dang Shen (Zai Pei) - Organic
Codonopsis Root (Cultivated) - Codonopsis pilosula Radix - Dang Shen (Zai Pei) - Organic

Codonopsis Root (Cultivated) - Codonopsis pilosula Radix - Dang Shen (Zai Pei) - Organic

From $11.85

Dong Quai Root - Angelicae sinensis Radix - Dang Gui (Quan Gui Pian) - Whole root sliced - Organic Grade
Dong Quai Root - Angelicae sinensis Radix - Dang Gui (Quan Gui Pian) -  Whole root sliced - Organic Grade

Dong Quai Root - Angelicae sinensis Radix - Dang Gui (Quan Gui Pian) - Whole root sliced - Organic Grade

From $13.85

Reishi Mushroom (Red, Slice) - Ganoderma lucidum - Ling Zhi (Hong, Pian) - Organic
Reishi Mushroom (Red, Slice) - Ganoderma lucidum - Ling Zhi (Hong, Pian) - Organic

Reishi Mushroom (Red, Slice) - Ganoderma lucidum - Ling Zhi (Hong, Pian) - Organic

From $12.95

Schisandra Fruit - Schisandra chinensis Fructus - Wu Wei Zi - Organic
Schisandra Fruit - Schisandra chinensis Fructus - Wu Wei Zi - Organic

Schisandra Fruit - Schisandra chinensis Fructus - Wu Wei Zi - Organic

From $14.85

Poria (Cubes) - Poria cocos - Fu Ling (Ding) - Organic
Poria (Cubes) - Poria cocos - Fu Ling (Ding) - Organic

Poria (Cubes) - Poria cocos - Fu Ling (Ding) - Organic

From $4.95

Rose Buds - Rosae rugosae Flos - Mei Gui Hua - Organic Grade
Rose Buds - Rosae rugosae Flos - Mei Gui Hua - Organic Grade

Rose Buds - Rosae rugosae Flos - Mei Gui Hua - Organic Grade

From $8.65

Licorice Root, Chinese (Cultivated) - Glycyrrhiza uralensis Radix - Gan Cao (Zai Pei) - Organic Grade
Licorice Root, Chinese (Cultivated) - Glycyrrhiza uralensis Radix - Gan Cao (Zai Pei) - Organic Grade

Licorice Root, Chinese (Cultivated) - Glycyrrhiza uralensis Radix - Gan Cao (Zai Pei) - Organic Grade

From $6.95

White Peony Root - Paeoniae alba Radix - Bai Shao - Organic
White Peony Root - Paeoniae alba Radix - Bai Shao - Organic

White Peony Root - Paeoniae alba Radix - Bai Shao - Organic

From $6.80

Bai-Zhu Atractylodes / White Atractylodes Organic (Slice)- Atractylodis macrocephalae Rhizoma - Bai Zhu - Organic Grade
Bai-Zhu Atractylodes / White Atractylodes Organic (Slice)- Atractylodis macrocephalae Rhizoma - Bai Zhu - Organic Grade

Bai-Zhu Atractylodes / White Atractylodes Organic (Slice)- Atractylodis macrocephalae Rhizoma - Bai Zhu - Organic Grade

From $5.25

Hawthorn Berry Organic - Crataegi pinnatifida Fructus - Shan Zha - Organic Grade
Hawthorn Berry Organic - Crataegi pinnatifida Fructus - Shan Zha -  Organic Grade

Hawthorn Berry Organic - Crataegi pinnatifida Fructus - Shan Zha - Organic Grade

From $6.46

Lotus Seed - Nelumbinis nucifera Semen - Lian Zi - ND Grade
Lotus Seed - Nelumbinis nucifera Semen - Lian Zi - ND Grade

Lotus Seed - Nelumbinis nucifera Semen - Lian Zi - ND Grade

From $7.45

Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - Organic Grade
Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - Organic Grade

Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - Organic Grade

From $7.45

Cassia Seed (Dry-fried) - Cassia obtusifolia Semen - Jue Ming Zi (Chao) - Organic Grade
Cassia Seed  (Dry-fried) - Cassia obtusifolia Semen - Jue Ming Zi (Chao) - Organic Grade

Cassia Seed (Dry-fried) - Cassia obtusifolia Semen - Jue Ming Zi (Chao) - Organic Grade

From $2.90

Star Anise - Ba Jiao Hui Xiang- Illicium verum - Organic
Star Anise - Ba Jiao Hui Xiang-  Illicium verum - Organic

Star Anise - Ba Jiao Hui Xiang- Illicium verum - Organic

From $7.10

Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - ND Grade
Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - ND Grade

Lily Bulb (Juan Dan) - Lilium lancifolium Bulbus - Bai He (Juan Dan) - ND Grade

From $7.45

Cordyceps militaris - Cordyceps militaris - Chong Cao Hua - Organic
Cordyceps militaris - Cordyceps militaris - Chong Cao Hua - Organic

Cordyceps militaris - Cordyceps militaris - Chong Cao Hua - Organic

From $16.45

Ginkgo Leaf - Ginkgo biloba Folium - Bai Guo Ye / Yin Xing Ye - Organic
Ginkgo Leaf - Ginkgo biloba Folium - Bai Guo Ye / Yin Xing Ye - Organic

Ginkgo Leaf - Ginkgo biloba Folium - Bai Guo Ye / Yin Xing Ye - Organic

$25.00