Dilution is a way of life. Get use to it. Its a method of funding and is absolutely necessary to grow a start up company. The money has to come from somewhere and this is the usual avenue taken. You may not like you percentage of ownership dwindle but its either that or no venture at all.
This is only my opinion. You should research before you invest to limit your risk. When you invest in pinks its all risk and most fail, Never risk more the 10% of your holdings in pink sheet stocks! Howard Haftel