A friend of mine is selling products, should I buy them?
Pyramid schemes and businesses have been around for a long time. Some are well established and more reputable like Mary Kay and some are not. In my opinion, there’s no evidence that Nerium does anything more than already excellent products on the market that have more of a track record.
Please see what I think is one of the best night creams. It’s also tricky with friends who are selling things. Friendships sometimes don’t survive business relationships.