Research Article
Are Cosmetics Used in Developing Countries Safe? Use and Dermal Irritation of Body Care Products in Jimma Town, Southwestern Ethiopia
Table 1
United States Testing Company (USTC) erythematic and edema evaluation scale [
31].
| Erythema | Scale | Edema | Scale |
| No erythema | 0 | No edema | 0 | Very slight erythema (barely perceptible) | 1 | Very slight edema (barely perceptible) | 1 | Well-defined erythema | 2 | Slight edema (edges of area well defined by definite raising) | 2 | Moderate to severe erythema | 3 | Moderate edema (raised approximately 1 millimeter) | 3 | Severe erythema (beef redness) to eschar formation preventing grading of erythema | 4 | Severe edema (raised more than 1 millimeter and extending beyond the area exposed). | 4 |
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