To achieve the best results for underarm darkness, it is important to understand the underlying cause. The Be Bodywise 4% AHA BHA Flora Underarm Roll-On can help if your darkness is due to dead skin buildup or mild irritation. Still, if it is related to hormonal factors, genetics, or friction from tight clothing, you may need additional targeted approaches such as medical consultation, hormone management, or lifestyle adjustments. Identifying the cause first will help you choose the most effective treatment for your situation.