Cyco XL GroStim is designed to be used for just one week during the vegetative stage of growth to encourage nutrient absorbsion levels and to stimulate increased root, stem and leaf formation. The key to making Super Phosphoric Acid is the use of Pharmaceutical grade phosphates and sulfuric acid which result in the creation of an ultra pure, plant useable phosphate that infuses and cleans root surfaces significantly boosting growth. Super Phosphoric acid is produced from phosphates by reacting with sulphuric acid. The acid is reacted with alkaline salts to produce purified phosphates. Plants need phosphorus and phosphorus containing compounds as they play a vital role in photosynthesis. Super Phosphoric acid also aids in root development and helps increase the uptake of iron, nitrogen and potassium. Ultra purified. Easily absorbable form of phosphate. Encourages uptake of iron, potassium and nitrogen. Accellerates Vegetative growth phase. Results in explosive root, stem and foliage formation.