There are so many products, especially skin care, being sold by multi-level marketing, MLM, these days. In years past, the term used was "pyramid" marketing. I have issues with this type of marketing. First, the average person selling the products to friends and neighbors isn't making a lot of money. MLM relies on not only selling products, but recruiting others to sell under you so you're getting a portion of the commission they earn on selling products as well. No one gets that Mary Kay pink Cadillac selling lots of lipstick! They earn it by getting others to sell lots of lipstick. With each person going up the chain taking a commission from each sale, the cost of these products skyrockets.
The main issue that I have with skin care products being marketed and sold in this manner is that while the ladies who sell these products mean well, they aren't estheticians trained in skin care. I spent two years of my life and $16,000 to become a licensed master esthetician in Virginia. I have extensive knowledge of skin conditions and how best to treat them as well as knowledge of skin care ingredients. People selling Mary Kay, Rodane and Fields, Arbonne, Nerium, etc - they do just that - sell you the products. They aren't trained or licensed to do a complete skin care analysis and recommend a custom skin care routine based on your specific skin care needs.
It's not that any of these products are bad. But if you're going to spend money on quality skin care products, then I believe you should be taking the advice of a trained and licensed professional.