Table 6. Test results using the DKG test series “ingredients of external agents”. Right column shows percentage of positive reactions (% pos.).
| Substance | Conc. | Unit | Base | No. of tests | neg. | ? | q | + | ++ | +++ | ir. | % pos. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cocamidopropyl betaine | 1.00 | % | aqu. | 161 | 148 | 3 | 0 | 4 | 0 | 0 | 6 | 2.5 |
| Propylene glycol | 20.00 | % | aqu. | 158 | 149 | 4 | 0 | 1 | 1 | 1 | 2 | 1.9 |
| Amerchol L-101 | 50.00 | % | pet. | 159 | 154 | 1 | 0 | 2 | 1 | 0 | 1 | 1.9 |
| Cetostearyl alcohol | 20.00 | % | pet. | 152 | 146 | 3 | 0 | 1 | 1 | 0 | 1 | 1.3 |
| Octyl gallate | 0.30 | % | pet. | 161 | 139 | 13 | 0 | 2 | 0 | 0 | 7 | 1.2 |
| Benzophenone-4 (Sulisobenzone) | 10.00 | % | pet. | 152 | 149 | 2 | 0 | 1 | 0 | 0 | 0 | 0.7 |
| Butylhydroxyanisole (BHA) | 2.00 | % | pet. | 160 | 159 | 1 | 0 | 0 | 0 | 0 | 0 | 0.0 |
| Butylated hydroxytoluene (BHT) | 2.00 | % | pet. | 160 | 159 | 0 | 1 | 0 | 0 | 0 | 0 | 0.0 |
| Polyethylene glycol ointment DAB 8 | 100.00 | % | 159 | 159 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | |
| tert-Butylhydroquinone | 1.00 | % | pet. | 161 | 157 | 2 | 0 | 0 | 0 | 0 | 2 | 0.0 |
| Triethanolamine (TEA;Trolamine) | 2.50 | % | pet. | 159 | 157 | 1 | 0 | 0 | 0 | 0 | 1 | 0.0 |
| Cocamide diethanolamine | 0.50 | % | pet. | 158 | 153 | 4 | 0 | 0 | 0 | 0 | 1 | 0.0 |