A semipermanent at-home smoothing treatment takes about 30 minutes, but the time-saving benefits you get later are tenfold. Select a formaldehyde-free version like Keratin Perfect and follow the instructions to a tee. "The more carefully you apply, the longer the results will last," says Vigi. "It's life-changing for women with thick, textured hair."
Keratin Perfect 30 Day Brazilian Smoothing System Deluxe Edition, $235; keratinperfect.com.Read MoreLess