In this blog let's learn about human skin. Fact Number 1: Do you know that the human skin is the largest organ in the body? Amazing! Right? Why we need to protect our skin? Skin being the outermost covering of our body protects our internal organs and provides overall immunity to our body against harmful external microbes and trauma. But it is also in a constant threat to external injuries and infections due to constant wear and tear. Fact Number 2: Your skin regenerates itself after every 4 weeks As our skin is under constant threat to external injuries it also has the capability to renew itself after every 28 days. This regeneration is commonly seen as "Dead Skin Shedding". That's why your cosmetologist recommends you to exfoliate your skin once or twice a week so that you can get rid of those whitish dead skin seen on your face. Fact Number 3: Your diet influences your skin. Yes! It does. Diet plays a significant role in influencing your skin condition. What you ...
Human skin exposure to ultraviolet radiation (UVR) from sunlight can cause many adverse effects. Therefore, it becomes necessary to protect the skin from damaging UVR through various means, one of which is through adequate application of sunscreen, especially when exposed to sunlight for prolonged periods of time. Ultraviolet (UV) light that reaches the surface of the Earth includes both UVB (290–320 nm) and UVA (320–400 nm). UVB is mainly responsible for redness or sunburn. SPF is a measure of protection from UVB light . UVA rays are not directly absorbed by biological targets but they can still dramatically impair cell and tissue functions. UVA penetrates deeper into the skin than UVB. This particularly affects connective tissue, inducing the production of detrimental reactive oxygen species (ROS) which in turn damage DNA, cells, vessels, and tissues. It is important to note that under all weather conditions, the UVA irradiance is at least 17 times higher than the UVB irra...