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| Chemical Name Sort descending | Dosage | Reference |
|---|---|---|
| TOCOPHEROL | not available | Duke, 1992 * |
| TRICIN | not available | Wealth of India. |
| URSOLIC-ACID | not available | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |
| VITAMIN-E | not available | Duke, 1992 * |
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| Plant Name Sort descending | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Pycnanthemum virginianum | Virginia Mountain Mint | 5 | 1, 943 |
| Pyrus communis | Pear | 3 | 28 |
| Quercus alba | White Oak | 3 | 200, 000 |
| Quercus infectoria | Aleppo Oak; Dyer's Oak; Gall Oak | 4 | 0 |
| Quercus robur | English Oak | 3 | 200, 000 |
| Quercus rubra | Northern Red Oak | 3 | 160, 000 |
| Quercus suber | Cork Oak | 1 | 65, 000 |
| Quercus velutina | Black Oak | 1 | 0 |
| Quillaja saponaria | Soapbark | 1 | 150, 000 |
| Quisqualis indica | Rangoon Creeper | 1 | 0 |
| Ravensara aromatica | Ravensara | 4 | 808 |
| Rheum officinale | Chinese Rhubarb | 1 | 27 |
| Rheum palmatum | Chinese Rhubarb | 3 | 14, 330.5 |
| Rheum rhabarbarum | Rhubarb | 1 | 0 |
| Rhizophora mangle | Red Mangrove | 2 | 636, 800 |
| Rhododendron dauricum | Chinese Alpenrose | 2 | 0 |
| Rhododendron ferrugineum | Rusty-Leaved Alpenrose | 2 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 2 | 120, 000 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 4 | 840, 000 |
| Rhus glabra | Smooth Sumac | 1 | 270, 000 |