Fitness magazines asked Danny about styling straight and curly hair. Straight Hair: Pump up each hair strand with volumizing shampoo and stylers such as thickening sprays and foams. Look for silk proteins and essential fatty acids in the ingredients: these will help plump the strands without adding bulk. “Mousse helps add lift,” says Danny Jelaca, the styling director of Stella Salon in Miami Beach. ” But it often promotes a dull finish.” To counteract that effect, add shine with a silicone spray- but use the tiniest amount: spritz a dime-sized drop into your palm, rub hands together, and lightly coat the hair surface at the ends. Curly Hair: The wetter the air, the more it opens the cuticle, resulting in frizz. The right product combination: Jelaca, who sees a lot of curly heads in balmy South Beach, recommends a leave-in conditioner and silicone serum when hair is wet, followed by a shot of styling oil applied to dry curls. The silicone serum helps seal the cuticle shut, while the oil repels water in the air.