Use homemade scrubs to avoid lip pigmentation:
Honey and sugar: Honey and sugar are the best combinations to exfoliate your lips. Mix 1 tablespoon of honey and 1 teaspoon of sugar, and use this on your lips. Gently rub the mixture until the sugar and let it melt. Honey helps moisturize the lips, while sugar helps to remove the dry and flaky skin from the lips.