Advanced Nutrients' pH Perfect Sensi Grow A+B is a high-quality staple food for plants that automatically stabilizes the pH value and keeps it in the optimal range. It contains all the necessary nutrients needed for healthy growth and is effortlessly absorbed by the plants. The amino acids, humic acids and surfactants it contains ensure efficient nutrient absorption and support the building of cell walls. With pH Perfect Sensi Grow you can produce large, heavy and juicy flowers.