Several oils are known for their brightening properties, including rosehip oil, which is rich in vitamin C and antioxidants, and turmeric oil, known for its anti-inflammatory and skin-brightening effects. Consistent use, combined with sun protection, can help improve skin radiance.

Consider using body oils formulated with brightening ingredients like vitamin C, kojic acid, or licorice root extract. Exfoliating regularly with a gentle scrub can also help remove dead skin cells and enhance the effectiveness of brightening products.

While some body oils can contribute to a brighter and more even skin tone, they generally won't dramatically lighten skin. Oils containing ingredients like vitamin C may help fade dark spots and improve overall radiance with consistent use and sun protection.

Achieving significant skin brightening in just 7 days is unlikely, but you can improve radiance. Focus on gentle exfoliation, using a brightening body oil with vitamin C, and consistent sun protection to see subtle improvements.