What's the difference between sunscreen and sunblock?What is sunscreen? Actually, it can be described as anything that blocks or protects the skin from UV radiation. (e.g. clothing, hat, shade, lotion/cream or awning)
I hope to answer most of those questions here. • Sunscreen is any product with an SPF of at least 2 that absorbs UV rays • Sunblock is any product that physically blocks UV rays and has an SPF rating of 12 or higher.
How does sunscreen work? It works by combining certain types of chemical and physical ingredients to prevent harmful UV rays from penetrating the skin. Some ingredients reflect or scatter ultraviolet (UV) radiation, while others absorb UV radiation and diffuse it. There are two main types of (UV) Ultraviolet rays, UVA and UVB radiation.
The two different types of UV rays in sunlight: • UVA - The “A” stands for Aging. Because UVA radiation penetrates the skin, it is the cause of premature Aging. • UVB - The “B” stands for Burning: As in a SunBurn. Until recently, the common theory was you only needed to block UVB rays and prevent sunburn to prevent sun damage. Scientists now understand that exposure to both UVA and UVB rays are considered dangerous and contribute to the increase of skin cancer diagnosis.
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“Sunscreen” is the more popular term used today, and is often a combination of both UV absorbers and physical blockers.
With the number of suntan lotions on the market, it's important to know which ones will protect you from both UVB and UVA rays.
Products labeled Broad spectrum give you the best overall protection and blocks both UVA and UVB rays.
The history of sunscreen Its history can be traced back to the ancient Egyptians and Greeks, who were known to rub olive oil on their skin – It surely made their skin soft, but it didn’t do anything to protect it. Historians believe that people from these ancient civilizations tried other organic ointments and potions, including crushed castor seed paste and Jasmine to protect their skin from sunburn. There really is no clear answer as to who invented the first topical sun protection. There are four scientist from the 1930’s and 1940’s who all contributed to the development and invention of what we now call "sunscreen". Two of most well known names are Eugene Schueller, founder of L’oreal Cosmetics and Benjamin Green, the creator of Coppertone.
Sun-Protection-and-Products-Guide will provide all the information you’ll ever need to choose your sun protection wisely
Learn more about: Tips on how to apply sun tan lotion.
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