Creating a more drastic change (say, going from chocolate brown to a warm caramel) really requires an expert. "Lightening hair is more complicated than dying it dark or simply touching up an existing color," Georgiou says. This summer she predicts the ombre craze being replaced by '"foilyage." "It's a technique where the color is painted on the hair, just like balayage, but then each painted section is wrapped in foils which amplifies the effects," she says, pointing to celebs like Chrissy Teigen and Miranda Kerr as examples of this effect.
Take the natural approach. Georgiou says lemon juice is your best chance for DIY success. But proceed with caution: She warns not to let it sit in your hair for longer than two hours. "Mix the juice with a teaspoon of oil to replenish the moisture you lose when you strip your hair of natural pigment," she says. Her favorite: Leonor Greyl Huile Secret de Beauté ($66, leonorgreyl-usa.com), which helps protect the quality and shine of your hair.
Once you've lightened your hair -- no matter how -- it's more susceptible to damage. Use a shampoo and conditioner for color-treated hair like L'Oreal Paris Advanced Haircare Color Vibrancy Shampoo and Conditioner, $4.99 each, and get a deep conditioner like Fekkai Technician Color Care Luxe Color Mask, $7.99, into regular rotation to restore moisture and shine.