Abstract
Several studies revealed that the ethanolic extract, cream, and loose powder of Bawang Dayak bulbs (Eleutherine bulbosa (Mill.) Urb.) are effective in inhibiting the growth of different acne-causing bacteria, including S. aureus, S. epidermidis, and P. acne. Several product series have also been developed using the plant for the treatment of acne-prone skin. Therefore, this study aims to carry out a primary irritation test of E. bulbosa loose powder using the patch test method on rabbits and humans to determine its safety before it is marketed. The results showed that the primary irritation index of E.bulbosa loose powder on rabbits was 0.125, which was classified in the negligible category, and there were no signs of erythema or edema in humans. This indicates that it does not cause irritation and has the potential to be developed into anti-acne products.
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