| ASCORBICACID |
Martindale's 28th |
| FORMICACID |
Duke, 1992 * |
| GALLICACID |
Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| SALICYLICACID |
A.L.L. Hunting. Encyclopedia of Shampoo Ingredients. Micelle Press, Cranford NJ. 467 pp. |
| TANNICACID |
Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| ZINC |
Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp. |