ABSTRACT This study aims to determine the characteristics of aromatherapy carrageenan gel from seaweed (Eucheuma cottonii) using 5% KOH concentration immersion and without KOH immersion and also to find out which one is the best for making seaweed aromatherapy fragrance gel. The test used was the T-test with two types of treatment, namely without KOH immersion (control) (F1), and 5% KOH i…