Maybe it's her ability to strike a casual, natural pose like this one without even trying.
Interestingly, she originally aspired to be a criminal justice lawyer.

As I've indicated here before, Nancy Dutiel's stint with Lancôme was very brief, but it produced some memorable print ads and even a few captivating TV ads, where she displayed her incredible figure and poise as well as her undeniably beautiful face. Isabella Rossellini, who replaced her, may have had star power, but Nancy Dutiel had a unique blend of sexiness and style that made her such a lovely presence.
This picture should certainly make that obvious. :-)
Born and raised in Massachusetts, Nancy Donahue was discovered by Mademoiselle magazine while in college after she won a modeling contest. She appeared in numerous magazines and ad campaigns throughout the eighties, and while she had plenty of beauty and glamour, she also projected a unique Boston Irish sensibility and panache that no one else could match. :-)
These days, Nancy Donahue is an entrepreneur, having co-founded a company selling a beauty product that . . .
On second thought, why not check out her product for yourself at this link? :-) The site explains it better than I can.
The picture above is a more recent photo of Nancy Donahue, demonstrating how ageless her beauty really is. :-)
Very nautical looking. :-)I forget the Lauder product this was meant to advertise, but does that really matter? :-D