Soap B.J. Johnson Soap Company, introduced "Palmolive" brand soap that same year. This new brand of soap became popular rapidly, and to such a degree that B.J. Johnson Soap Company changed its name to Palmolive. In the early 1900s, other companies began to develop their own liquid soaps. Such products as Pine-Sol and Tide appeared on the market, making the process of cleaning things other than skin, such as clothing, floors, and bathrooms, much easier. Liquid soap also works better for more traditional or non-machine washing methods, such as using a washboard. A variety of methods are available for hobbyists to
Complexion have far less need for protection from ionizing radiation, so their skin is usually lighter. A study published in the Journal of Human Evolution proposes that people in the Tropics have developed dark skin to block out the sun and protect their body's folate reserves. Those living away from the equator have developed a fair skin to absorb enough sunlight to maintain adequate vitamin D in their bodies. Complexion Complexion in humans is the natural color, texture, and appearance of the skin, especially on the face. The word "complexion" is derived from the Late Latin "complexi", which initially referred in