How to have lighter armpit?

To lighten dark armpits, consider using natural remedies like lemon juice, baking soda, or coconut oil, which can help exfoliate and brighten the skin. Maintaining good hygiene and regularly shaving or waxing can also prevent darkening. Additionally, avoid using harsh chemical products and opt for natural deodorants. If the discoloration persists, consult a dermatologist for specialized treatments.