Dutch Master is an Australian-based company that manufactures plant nutritional products for hydroponics & horticultural applications. Dutch Master was the first company to introduce a PGR (plant growth regulator) product into our industry, called Super Bud. After that the flood gates opened and products like Bush Master, Dr. Nodes, Hulk and Phosphoload became big sellers at hydro shops across the country. That is, until they were outlawed for containing a cancer-causing agent. Nowadays Dutch Master is probably best known for its foliar sprays Liquid Light and Penetrator. Used in combination these products are among the best foliar feeds on the market. Dutch Master A.P.S. is another popular products, as well as Zone and Reverse.