shine!

Paul Mitchell Super Skinny Serum is a great $17 product for glossy shine. Apply to it to your hair before blow-drying and skip a day before straightening, and your natural oils will add to the shine. It penetrates deep into the hair shaft to displace water and constrict hair, where lightweight silicones smooth and seal it with shine. The smoother surface give a faster drying and styling time, too (see title link)!