Many of us are familiar with so-called antioxidant in cosmetics.
This blog provides an update on the efficacy of antioxidant formulations in combating the effects of free radical damage.
While we do not yet thoroughly understand the scientific ‘how and why’, it is now fairly clear that free-radical damage is bad for the skin.
Free radical oxidation is the basis of the aging process because it causes permanent deterioration of the skin cell’s support structures, decreasing elasticity and resilience.
Cosmetic ingredients that act as antioxidants are thought to diminish or neutralise the impact of free radical damage by slowing down or blocking oxidation within a skin cell.
SCOUT Cosmetics Moisturising Face Cream contains a number of antioxidant rich extracts and botanicals including Olive Leaf, White Tea and Pomegranate extracts, and Vitamin E and Cocoa Butter.
What is Free Radical Damage?
Oxidation caused by free radical processes operate at the level of atoms or molecules that make up skin cells.
Oxidation of skin cells by free radical activity may be caused by UV radiation, pesticides, air pollution, drugs, cigarette smoke, stress, and simply an unhealthy diet and lifestyle.
They are formed when an oxygen atom loses an electron. The loss of the electron makes the atom or molecule electrically unstable. To regain stability, free radicals tend to capture electrons from the atoms of surrounding substances in a chain reaction that continues until stopped by an antioxidant.
These free radicals attack and damage healthy cells, such as those contained in our skin. The overall result is cellular damage, alterations in the structure of the cellular membrane, and decreased skin elasticity and pliability.
As one would expect, sun and UV ray exposure intensifies the oxidation process and free radicals accumulate which over time leads premature ageing, sun-spots, blemishes, wrinkles and overall damaged and dry skin.
While the body has its own natural mechanism of protection from free radical induced damage, this protective capacity diminishes with age and when the body is exposed to conditions where the magnitude of free radicals formed overtakes the body's natural ability to neutralise them.
What do Antioxidants do?
It is believed that antioxidants in skincare are capable of penetrating into the deepest layers of skin tissue. Some experts believe antioxidants enable living skin cells to repair and renew. The end result is skin that looks and feels younger.
In theory antioxidants prevent the unstable oxygen molecules from interacting with other molecules (taking one of their electrons) and consequently causing them to become unstable, the process that starts the free-radical-oxidisation chain reaction.
Other reported benefits of attributed to antioxidants in skincare are:
- Reduce the appearance of fine lines and wrinkles over time by making skin appear plump, supple and renewed’
- Improve the tone of the skin by making it appear firmer and more vibrant;
- Reduce inflammation of the skin and helping the skin to look and feel healthy and luminous; and
The Best Antioxidants
Ingredients with antioxidant properties include:
- Olive Leaf
- Pomegranate
- Rosemary
- vitamins A, C, and E;
- green and white tea;
- glutathione;
- beta carotene;
- selenium;
- coenzyme Q10; and
- zinc
What is the evidence from Cosmetic Science?
As is often the case cosmetic science is some way off fully understanding the processes involved in free radical formation and the benefits of antioxidant formulations.
Theoretically wrinkles and an aging appearance result when the free-radical damage originates from natural environmental factors and fails to be ‘cancelled out’ by some amount of metabolic or applied antioxidant protection.
When thinking about topical preparations it is important to consider factors regulating the impact of the skincare product including ability to penetrate the skin, amount of an ingredient required to be effective and the time it takes to be effective.
None of us expect antioxidants to be a fountain of youth.
It is too early to say conclusively from the scientific evidence that antioxidants prevent or repair wrinkles.
However it is now generally accepted that the use of a quality antioxidant moisturiser, oil or serum as part of a daily beauty routine, is likely to reduce the impact of free radical damage.
The benefits of using a sun screen and simply being gentle with your skin in terms of environmental exposure have been well established.
So it is definitely worth making the effort now!
Sylvie xx