Detailed answer

Body scrubs are primarily used to exfoliate the skin and remove dead skin cells, dirt, and oil from the surface. Dark circles on the underarms and inner thighs are usually caused by the accumulation of melanin in the skin, which is not affected by exfoliation. Dark underarms may be caused by factors like hormones, tight clothing, or shaving, while dark inner thighs can be caused by friction or certain skin conditions. To address dark underarms or inner thighs, it is important to address the underlying causes and consider treatments such as topical creams containing ingredients like hydroquinone, kojic acid, or retinol. It is recommended to consult a dermatologist for a proper diagnosis and suitable treatment options.