Here is the link to the website: VIBRASS - entspannen Sie müde Lippen I read it first in German and then in English. My comments follow: 1) Testing was entirely subjective (the scores provided seem to match the school grading system that I know from Germany (1 is the best, 6 the worst) but their is no mention of the scale used. 2) The device is not compared with any other forms of lip massage. 3) There was no use of any technology that could discover any measurable physiological changes, not even something as cheap as measuring blood flow. 4) The Medical report essentially states that the product reasonably safe to use--nothing about it being effective. It is of course up to the buyers to decide, but until someone can prove to me that it is more effective than the cheapo Vulgano massage of playing long low tones and simultaneously singing a pitch almost the same as the played pitch (producing low frequency beats) I'll stick with the Vulgano method, and save money that I can spend on the traditional trumpeter's chemical method of hitting a bar with colleagues and ordering a few pints. Have fun!