Put Bio or Organic in the name of a product and everyone feels good about using it. Some of the strongest solvents are the citrus solvents. Just because they occur naturally in a plant or can be extracted and concentrated doesn’t make them any less harmful. I don’t know ether of the products you asked about but they both have to break down or become neutral at some point or they wouldn’t be allowed to be sold. Most of these products I have used don’t really work that well unless the water flow is stopped 100% and the stuff can lie in the pipe and work on eating the clogging substance up. If it’s just running past a semi clog it won’t be in contact long enough to do much. Most likely you have a pipe that has a buildup wax like soap scum and is restricting flow, mixed in with hair etc. The idea of running a snake and opening things up is what I like also. The snake is actually the best Green method of doing the job and the one that will last the longest once done.