treatment vs. therapy (x-post from /r/askscience)

treatment vs. therapy (x-post from /r/askscience) We are going to establish a company in order to commercialize a stuttering treatment/therapy program. The treatment/therapy is really effective and backed by a lot of scientific research. In our recent discussions, some disagreement has come up whether to market it as the "XYZ stuttering **treatment**" or the "XYZ stuttering **therapy**". On one hand, calling our product the "XYZ stuttering treatment" might be advantageous, because in all the research literature it is referred to as such. On the other hand, calling it the "XYZ stuttering therapy" could be better, because all the competition markets/offers their programs as "therapies", and having the term "therapy" appears to be more serious and seems to imply effectiveness. Also, the word "therapy" appears to be more international, which could help if we offer the program abroad. I'm not a native speaker though, so I wanted to hear your opinion and feedback. What's really the difference between "treatment" and "therapy"? Would you rather recommend calling it the "XYZ stuttering treatment" or the "XYZ stuttering therapy"? Why? I would love to hear your feedback. Florian