Was it worth the wait? Consumers should let Sisley Paris know in about a year or so. After 15 years of product development, the company is rolling out Sisleÿa L’Integral Anti-Age La Cure. Described as a four-week intensive treatment program, each week Sisleÿa L’Integral Anti-Age La Cure uses a different treatment meant to target specific aspects of the aging process. The brand recommends using the full four-week treatment twice a year. It's the 12th product in the range. The new treat...