It seals cut tissue instantly, eliminating the risk of infection or embolism. It contains rooting hormone at 3,300 parts per million, the full strength required for explosive root development. It is a gel – far safer than liquids or powders because it cannot splash or blow about. Unlike liquids and powders, CLONEX will remain in contact with the stem right through the rooting period. It does not wash off when plants are watered.