I have ordered from this place and when you call they don’t ask if so and so sent you so how would he get any kickbacks. He is just trying to help folks grow decent plants with low cost and good results. So if no one wants to buy it don’t no sweat off his back like he said he doesn’t make anything off the sales of this product. This product is designed by Michigan state university (MSU) thank you shadow8049 for telling me about 19-4-23 it has been a game changer for me and my friends that use it.