To try home-made lip scrub, mix sea-salt and honey, then gently massage your lips. The sea-salt will make the lip skin flakes come off, the honey will offer the moisture.
Use lip balms, because they can provide moisture. If you have chapped lips, avoid using lipsticks. You can use lip balm as foundation, before using a lipstick, so that your lips will look moisturized.
Using lip balms or hydrating cream can greatly reduce lip dryness. You can also use vitamin E to protect your lips.
Do not use expired lipsticks or lip gloss, because they are filled with bacteria and they lack nutrients.