I think Christie is just beautiful and always has been. It's well known that she has been a health junkie for years and takes very good care of herself and that goes a long, long way in looking good.
She may also have had a little bit of (very good) work done and more power to her if so.
First and foremost, IMO, is she was just born plain gorgeous and has more natural material to work with that 99 percent of the general population anyway.
Love her, but I DO fully realize that just using her line will NOT make me look anything like her (darn it anyway) but that doesn't mean I'm not willing to check it out. Au contraire mon cher, I will be right there. 
I won't buy her products from that website as I don't want to be locked into anything long term. However, I might be tempted to try something from HSN.
I will check it out any rate, if for nothing else than to just watch the lovely Christie. 