Photography Tips : Having a reflector will let you better control light on your subject. You can even use foam core board at a craft store that’s black on one side and white on the other for less than five dollars.
Foldable fabric ones are also available at photography stores. The black side lets you block or reduce lights, while the white side can be used to fill in shadows. These two options give you much greater control with positioning and angles instead of being limited by the main light source. If there is too much contrast in your scene, use a reflector to fill the shadows on your subject. Adjust the reflector’s distance to your subject to control the intensity of the fill light.