How long does it take for a lime to lighten your skin?

You can't determine a set amount of time, but here are a couple things you can do to begin getting lighter skin:

1. Make your own DIY face masks using cucumbers and yogurt. Make sure to chop up the cucumber very finely, and use all natural yogurt.

2. Apply a low SPF sunscreen to your face before applying makeup. You can usually find moisturizers that already contain sunscreen in them that are at least SPF 15.

Hope this helps!