Powder detergent dominates this aisle for a practical reason: it keeps better than liquid in a hot, humid climate, and its cost per wash stays lower.
Powder is also more effective on heavily soiled laundry and mineral stains, whereas liquid does better on grease and at low temperatures. For hand washing, common in the Comoros, powder dissolved in hot water remains the most economical choice.
The aisle also covers household and toilet soaps, bleach and multi-purpose cleaners, available in family formats and bulk sacks.