ABSTRACT This study aims to analyze the effect of additional Chlorella sp. powder. on the characteristics of liquid soap. The research method used was a non-factorial Completely Randomized Design (CRD) with 4 treatment levels, namely C0 (0 gram of Chlorella sp. powder), C2 (0.68 g of Chlorella sp. powder), C4 (1.36 g of Chlorella sp. powder), and C6 (2.05 g of Chlorella sp powder). Parameter t…