ecozones 1l biological laundry liquid is concentrated to last you 25 washes with perfect results every time. the bio formula cleans tough stains like wine, grass, grease, tomato, etc. using enzymes. with its specially developed plant-based ingredients it cleans on cool washes and is great on whites and colourfast laundry.built against ecocert to match the cleaning performance of the best non-eco brands. fantastic cleaning power without additives and harsh chemicals.