Dark underarms can be embarrassing, right. It happens when the skin is exposed with chemicals like deodorants or constant friction of clothes, because of of a medical condition called Acanthosis Nigricans which is often the result of insulin resistance, certain medications and hormonal disorders. Other causes of dark underarms are shaving, accumulation of dead skin cells, too much scrubbing, and regular use of removal hair creams. My advanced botanical formula is all-natural and does NOT contain harsh chemicals such as Hydroquinone or Kojic Acid found in other lighteners! Instead, it features gentle lightening agents that won't irritate or have dangerous side effects. Treatment ends with High Frequency. Result...Beautiful Underarms!! Natural Deodorants are available for order.