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| Chemical Name | Dosage | Reference |
|---|---|---|
| STARCH | not available | Martindale's 29th |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Cinchona spp | Quinine | 1 | 0 |
| Cnicus benedictus | Blessed Thistle | 1 | 80, 000 |
| Coix lacryma-jobi | Adlay; Adlay Millet; Job'S-Tears; Yi-Yi-Ren | 1 | 3, 160, 000 |
| Cola acuminata | Abata Cola | 1 | 340, 000 |
| Colchicum autumnale | Autumn Crocus; Meadow Saffron | 1 | 420, 000 |
| Colocasia esculenta | Taro | 1 | 262, 700 |
| Coriandrum sativum | Coriander; Chinese Parsley; Cilantro | 1 | 300, 000 |
| Costus speciosus | Crepe Ginger; Wild Ginger; Cane Reed | 1 | 999, 999 |
| Crataegus laevigata | Hawthorn; English Hawthorn; Whitethorn; Woodland Hawthorn | 1 | 720, 000 |
| Crataegus rhipidophylla | Hawthorn | 1 | 180, 000 |
| Crocus sativus | Saffron | 1 | 130, 300 |
| Crotalaria juncea | Sunhemp | 1 | 411, 000 |
| Cucurbita foetidissima | Buffalo Gourd | 1 | 550, 000 |
| Curcuma longa | Turmeric; Indian Saffron | 1 | 1, 100, 000 |
| Curcuma xanthorrhiza | Javan Turmeric; Temu Lawak | 1 | 800, 000 |
| Curcuma zedoaria | Shoti; Zedoary | 1 | 1, 000, 000 |
| Cycas revoluta | Sago Cycas | 1 | 243, 700 |
| Cyperus rotundus | Nutsedge | 1 | 92, 000 |
| Cyphomandra betacea | Tamarillo; Tree Tomato | 1 | 280, 000 |
| Cypripedium pubescens | Ladyslipper | 1 | 0 |