The professional Conair Straightening Iron 1.5 in. Keratin Infuse is recommended for Brazilian keratin straightening treatments. It features titanium plates that are infused with keratin (a deep-penetrating protein), ensuring superior straightening results. The consistent high heat ensures keratin treatment is absorbed and sealed into hair for longer-lasting, shiny, straight results. It heats up to 450-degree F with instant heat, while the built-in 40 heat settings let you easily regulate the heat setting for any hair length or texture.