Yes, it is suitable for the female face below the cheekbones; it is not intended for use on the neck. Philips states that Lumea can be used on the female face below the cheekbones, while the neck is specifically excluded for men; no use is mentioned for the neck and beard area.
There is no clear separate approval for the chin in the information provided. If your chin is below the cheekbones and is part of the face, it is generally covered according to the manufacturer's instructions.