Mango Curl Activator SOS Curls with Mango Oil and Vegetable Keratin, for hair care. Moisturizes strands, promotes shine, and activates and defines curls. How to use: With clean and damp hair, apply the Curl Activator strand by strand and evenly, from the length to the ends. For more volume control, apply close to the roots as well. Toss them, starting the movement from the ends to the roots. No rinsing. Daily use.