Laundry is supposed to come out of the dryer smelling clean, not carrying a faint musty odor from one load to the next. If that smell keeps returning, moisture or odor-causing buildup somewhere in the dryer vent system may be worth checking rather than assuming detergent is the problem.
To help address persistent odors in the dryer vent system, Dryer Vent Wizard of Manhattan Beach, Redondo, Torrance offers dryer vent sanitizing for lingering odor-causing residue and buildup.