What part of the treatment do you consider a marketing ploy? If we are talking about the removal of black spots from the nose, which are often confused with sebaceous follicles by inexperienced cosmetologists, this can be considered a part of marketing. In general, if you order a skincare complex of peeling and serum
https://skincareonline.uk/skin-care/serums-boosters-oils/ for 5 or 10 treatments, you can achieve a result similar to that of a beautician. But do not forget that there are people with really big skin problems, they will not always help not only a beautician, but even a dermatologist. all cases are individual and it all depends on what kind of result you want to achieve.