There are quite a few sensitive skin types that cannot use BE foundation or the Mineral Veil powder because of the bismuth oxychloride in it. I don't use BE foundation or the MV because it always made my dry skin look more dry and actually accentuated the wrinkles. Now that my skin is in such better shape, I still don't think I'll go back to BE foundation or MV. I do use the blushes, e/s and liners.
There is a justifiable reason why Leslie along with every other cosmetic company swears to you that their product is perfect for you...they want the sales. It is up to us to review, research, ask questions of each other, etc. etc. I used to sell Origins as a part time job at Foleys (now Macy's).... their big claim to fame was "all natural." Then I found out that no product is 100 percent natural or it won't be stable for long. That and that many many companies have botanicals as ingredients, it is just that they don't market theirs that way, i.e., MAC, Clarins (they both are botanical based in their skin care).
What I like is that now I don't have to spend unnecessary $$ on skin care anymore since reading this book.