TABLE 1.
Sensitization rate of standard series substances - 618 patients - 2006-2011
| TOTAL PATIENTS | 618 | |
| Substance | Total positive tests | % |
| Nickel sulphate | 174 | 28.16 |
| Thimerosal | 99 | 16.02 |
| Potassium dichromate | 69 | 11.17 |
| Cobalt Chloride | 65 | 10.52 |
| Fragrance mix | 54 | 8.74 |
| Carba mix | 45 | 7.28 |
| Neomycin | 45 | 7.28 |
| Paraphenylenediamin | 43 | 6.96 |
| PPD mix | 41 | 6.63 |
| Thiuram mix | 38 | 6.15 |
| Ethylenediamine | 27 | 4.37 |
| Promethazine | 21 | 3.40 |
| Formaldehyde | 20 | 3.24 |
| Mercaptobenzothiazole | 20 | 3.24 |
| Balsam of Peru | 20 | 3.24 |
| Parabens | 19 | 3.07 |
| Hydroquinone | 19 | 3.07 |
| Colophony | 17 | 2.75 |
| Lanolin | 16 | 2.59 |
| Quaternium 15 | 16 | 2.59 |
| Kathon CG | 15 | 2.43 |
| Benzocaine | 15 | 2.43 |
| Nitrofurazone | 14 | 2.27 |
| Turpentine | 11 | 1.78 |
| Quinoline mix | 10 | 1.62 |
| Propylene glycol | 10 | 1.62 |
| Epoxi resin | 9 | 1.46 |
| P-tertiary Buthylphenol | 5 | 0.81 |
| Irgasan | 5 | 0.81 |
| Anthraquinone | 4 | 0.65 |