What is in the Savvy Green laundry detergent bag?

Sodium Carbonate: this is mainly used to bring the pH up a bit as well as aiding in the softening of hard-water
C12-15 Pareth-2: This is a surfactant which acts as a glue between the dirt particles and water particles. When the water is drained from the washing machine, the dirt goes with it. It also lowers the surface tension of the water to allow it to totally engulf any dirt or stain that may be on the garment.
Sodium Metasilicate (Drying Agent): This dries out the mixture of the two above which increases the effectiveness of the cleaner. It also acts as a chelating agent, which binds up heavy metals that may be in the clothing or the water.