I could never figure this out for the life of me. Case-in-point--Beyonce. She was/is a spokesperson for L'oreal hair products but within the marketing/ads, she's wearing her lace front wigs. Isn't this false advertising? What are some of your opinions on this?

**In no way am I "downing" her or any other celebrity--I think these hair accessories are awesome but I just don't understand why they are advertising for a hair product, believing in these products, but are doing so without using their real hair as a part of supporting these prods.
misspelling of fron--should be front. Ooopppss! (In original question). Should have spell-checked!!