29% Hydrogen Peroxide - Case of 4A 29% liquid concentrate solution that adds oxygen to nutrient solutions through the decomposition of hydrogen peroxide. Nutrilife H2O2 is an Oxygen source for plants and soil. Nutrilife H2O2 (29%) makes it easy to increase oxygen levels around the root zone . When mixed with irrigation water, H2O2 offers plant roots and soil biota extra oxygen, that may improve root function and yield. Plant health and vigour rely heavily on the roots getting enough