How does the skin age? The skin is a barrier between our body and the outside world, protecting us from aggressors, retaining water and controlling our temperature. The skin has three layers: the epidermis, the dermis and the subcutaneous tissue. As the skin ages, these three components undergo changes. Some changes are obvious: wrinkles appear […]
What is oxidative stress?
Oxidation, how does it work? Oxidation is a chemical reaction that takes place in the presence of oxygen. You can see it when you cut an apple: once cut, the apple tends to turn brown because one of its enzymes reacts with oxygen and transforms a molecule (called phenol) into another molecule (called quinone) which […]