Question
For many years, especially in the second half of the twentieth century, scientists have focused on the physical and chemical properties of hair to consistently develop products, which alter the health, feel, shine, color, softness, and overall aesthetics of hair. A. ...

Question
At wavelength lower than 400 nm, region of ultraviolet (UV) radiation is observed in the electromagnetic spectrum. A. State the most harmful component/components of ultraviolet (UV) radiation, which is responsible for sunburn of the skin. B. Define the UV filter as a ...

Question
A. State three legally approved skin-whitening agents. B. Write down one restricted skin-whitening agent. C. Whitening products are very popular in oriental countries. Briefly state the reason for this preference. D. Briefly discuss the potential health hazardous associated with some of skin whitening ...