Abstract: Red snapper skin is on eof thenalternative gelatin resource. Gelatinnis a protein obtainednfrom the results of partial hydrolysis of skin, bones, and white connective tissue. The typenof gelatin is divided into two types, gelatin type A (acid immersion) and type B (base immersion). Thenpurpose of this study wa to determine thenbest extraction time with 5 hours, 6 hours, and 7 hours treatment. The resultnshowed the best value at 7 hours extraction, containing yield (18,60%), gel strenght (8,97 N), and viscosity (6,48 cP). In addition, gelatin in this studyncontaining higher glycine (16,54%) as amino acidsnprofile.