Cosmetics date back thousands of years, and one lesser-known fact is that ancient Egyptians used kohl to line their eyes, not just for aesthetic appeal but also to ward off evil spirits and improve their sight. Kohl was a mixture of soot and other natural ingredients, which they believed had protective and healing properties. Interestingly, modern science has suggested that the lead-based substances in kohl may have indeed helped to protect the eyes from bacterial infections. Cosmetics have always blended beauty with functionality. Share your intriguing cosmetic insights or facts with us!