Hygrozyme® is North America’s #1 concentrated enzyme formula and is an essential addition to any grow system. With over 20 years of medical and horticultural enzyme formulation and production experience, SIPCO perfected a proprietary formula to help plants reach their full genetic potential. Hygrozyme® provides a cleaner root zone by accelerating the breakdown of dead root matter. This process unlocks additional nutrients and helps plants thrive by stimulating new root growth. Hygrozyme is a genuine innovation in enzyme based products that breaks down old root mass to allow for and stimulate new growth. Manufactured in an entirely unique way, Hygrozyme offers growers a number of advantages over competing products. Completely free of bacteria, it has a virtually unlimited shelf life and carries no risk of introducing living bacteria into your system. How to use The manufacturer's recommended dilution rates are as follows (per litre of water): Cutting/Seedling: 1.5mls Vegetative Stage: 2-2.5mls Flowering Stage: 2-2.5mls