What Are Free Radicals?
Free radicals are highly reactive molecules produced as a by-product of oxygen molecules, in response to intrinsic or environmental stressors, including UV radiation, smoking, physical or mental stress, or pollution. These reactive molecules, in turn, may damage a variety of structures in the body, with a pronounced negative impact on the skin.
Oxidation caused by free radicals is the primary path of skin damage and aging, causing premature cell membrane instability and damage, resulting in several possible physical signs of aging, including any of:
- Fine lines, shallow, or even moderate, wrinkles and folds
- Decreased skin firmness
- Dull complexion with uneven texture and tone