We know that the sun can begin to damage the skin through UV radiation which generates reactive oxygen species (ROS) which can lead to photo damage and skin cancers. In addition, UV radiation can lead to the formation of matrix metalloproteinase (MMP) which can degrade elastic and collagen of the skin leading to wrinkling and laxity.
The cosmetic industry has flourished with over the counter products promising results. What are the ingredients that are important and what added benefit do they provide the skin?
A recent article in the Journal of Drugs in Dermatology reviewed the different ingredients.
Retinoid and Vitamin A.