The skin represents the first physical barrier to protect our bodies from harmful toxins, pathogens and dangerous environmental factors and plays an important role in social and visual experiences. South Africans have used traditional herbal medicinal products to increase immunity in

A system which harvests thermal energy from various sources such as sunlight, cars, power plants, factories and other industries, and converts it into electricity. The harvested heat energy is stored in a storage tank, with water used as an energy storage medium. This then flows along a gradient to