There is no safe way to lighten your skin permanently. Some people may try to use harsh chemicals, but these can be damaging to the skin and may cause adverse effects. The best way to lighten your skin is to use natural methods such as applying lemon juice, honey, aloe vera, and other natural ingredients. You can also use sunscreen to protect your skin from sun damage, which can help prevent darkening. Additionally, using a moisturizer regularly can help to keep your skin hydrated and healthy, which can give it a more even tone.