Coconut Oil
Gently massage your underarm with coconut oil thrice a day as it helps you to achieve bright underarm. For best result you can add lemon juice and yogurt to it.
Potato
Potato is also considered as a natural bleaching agent that is very beneficial in treating your dark underarms. Cut a potato into slices and massage your underarm area with it for at least 3-4 minutes. Repeat this process twice a day for best result.
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