How to Care for Wavy Hair 

A ceramic-plated flatiron best defines S-shaped bends. Just wrap sections around the plates, alternating directions for realistic ripples.

T3 SinglePass Luxe Straightening and Styling Iron. 

Choose moisturizing yet lightweight shampoos, says pro-stylist David Lopez, who works with Chrissy Teigen. This blend helps curb frizz with fruit oils and shea butter sans petroleum or mineral oils.

SheaMoisture Fruit Fusion Coconut Water Weightless Shampoo. 

Use a light conditioner every time you shampoo; afterward, mist damp hair with a leave-in conditioner, then desnarl with a wide-tooth comb, says pro-stylist Danilo. "This will keep waves from tangling and encourage movement."

Pantene Pro-V Curl Perfection Moisturizing Conditioner for Curly Hair, $5; target.com. 

Pantene Pro-V Moisture Mist Detangler, $7; target.com. 

Even healthy waves can fray at the ends, as natural oils have a harder time traveling down curved strands than straight ones. Apply a strengthening, heat-protecting serum to wet hair, then gloss over tips once it's dry to seal and hydrate.

CHI Silk Infusion Reconstructing Complex.