Using Lemon Juice for Freckles
Freckles are concentrated clusters of melanin, the pigment that colors human skin. These brown, light brown or reddish marks are most common in fair-haired people, and usually appear on the face, neck and shoulders. If you want to lighten your freckles naturally, you can use lemon juice to do so; the acidic properties of the lemons will lighten your skin, but it does take time to do so say like 3-4weeks.

For more, click http://www..com/lemon-juice-how-to-lighten-skin-with-it

You couls also use a yogurt face mask to lighten freckles see http://littleladyhealth..com/2014/10/10-natural-ways-to-lighten-your-skin.html

Freckles are thought to happen as a result of sun exposure and some genetic tendencies. Sunlight and artificial sun-tanning lights emit ultraviolet rays. Click on the link below to read more.
http://www.gigihealth.com/freckles-how-to-get-rid-of-freckles/