The product 'Multivitamins & minerals for the whole family' by NutrioneLife is not specifically targeted for fixing dull, rough skin but is a general multivitamin supplement for overall health. However, maintaining overall health through proper nutrition can indirectly contribute to better skin condition.

For specific skin concerns like dullness and roughness, skincare products containing ingredients like Vitamin C, retinoids, or exfoliants may be more effective. It is recommended to consult with a dermatologist for personalized advice.