Tag Archive: free radicals


The ADD seems to be steering in the direction of anti-oxidant additives ¬†for sunscreens. I’m starting to sense that everyone is getting wise to regular sunscreen use and the sensibility factor is improving with the medical community, the FDA and the consumers. Good to know SolarAegis is already providing broad-spectrum UVA/UVB protection, but even better, also includes the powerful anti-oxidant, Vitamin E (tocopheryl acetate) in the formulation!!

Read the article here

Interesting study, but they don’t mention which antioxidants were used. We are using Vitamin E in SolarAegis which is a common antioxidant and very effective at managing free-radical generation in the skin. Good news none the less…

http://www.cosmeticsdesign.com/Formulation-Science/

Seems like this term is stamped everywhere these days. It’s on the web, in beauty magazines, on vitamin labels and lotions claim to battle these “bad actors”, but what exactly is a free radical?

A free radical is a chemistry term for a molecule that has at least one unpaired electron group. Unpaired electrons are unhappy alone and seek out other electrons in which to react (allowing them to become stable). Until this “pairing” occurs, free radicals remain highly reactive (unstable) molecules. Lets look at an example…

The chlorine gas molecule’s chemical bond is broken by UV light, which creates two free radicals. The dot following the Cl symbol represents the unpaired electron on each. These two free radicals are now highly reactive and will look for other molecules to bind with in an effort to become stable.

The chemistry of free radicals occurs frequently in nature, including the human body, and is responsible for many biological processes, some of which are necessary for life. Scientists believe that free radicals are also responsible for the aging process as free radicals “attack” healthy cells and ultimately change the biochemical make-up of the cells over time. Our bodies produce enzymes to minimize damage caused by free radicals and certain antioxidants (vitamins A, C, E and polyphenol {plant derived} also aid in this process.

Free radicals can be produced in the skin due to over exposure to sunlight. Furthermore, the use of sunscreens containing chemical UV filters (cinnamates, salycilates, benzophonones, et. al.) can also lead to free radical production. These large molecules are broken down as they absorb UV energy from the sun and free radicals are a product of this chemical reaction. You can minimize the amount of free radicals your skin is exposed to by using a mineral based sunscreen (active ingredient(s) of zinc oxide and/or titanium dioxide) and managing your time in the sun.