Uji aktivitas antibakteri sediaan alami hand sanitizer dengan penambahan ekst…

This study was aimed to determine the antibacterial activity of Chlorella vulgaris against Staphylococcus aureus and Pseudomonas sp. and to determine the best concentration of Chlorella vulgaris as a natural preparation material for hand sanitizer. The method used in the study was experimental. Antibacterial activity testing was carried out on the natural hand sanitizer preparations with th…