Plant based, Sensitive and ‘Eco’ detergents can contain less surfactants overall than mainstream detergents. For this reason, in some situations increasing the quantity of detergent more than the usual amount recommended for a heavily soiled load is needed to achieve a great clean. Some work better with a laundry booster.
For best results use hot water (60 degrees C) for both the main and prewashes. See the Hot vs Cold Water page for more information on why.
For detergent quantities and recommended wash temperatures refer to the Detergent Index.
For more information on what is in detergents and the function of the raw materials see the Mainstream Detergents, Fragrance in Detergent, Enzymes, Optical Brighteners pages and The Wash Wise Detergent Ingredients Info Sheet.