Chemical vs. Physical. Why is this important?
Chemical absorbers work by absorbing UV rays while physical blockers reflect UV rays. The most common chemical ingredients in non-mineral sunscreens include octinoxate, oxybenzone, and avobenzone. When these chemicals are combined to form a broadband sunscreen, the formula itself can actually release its own free radicals, subjecting the skin to greater damage. More importantly, they may not protect against UVA rays. This has been linked to increased melanoma rates and the increase in premature aging by degrading collagen and elastin.
Physical blockers have been shown to be more effective in protecting against both UVA and UVB rays than chemical sunscreens. Titanium dioxide and zinc oxide are the two most commonly used blockers. These naturally occurring ingredients are safe and protect against the full UV spectrum.
Zinc oxide is an inorganic compound which has been used safely (non-irritating to the skin) for hundreds of years as a topical agent and is nearly insoluble in water. This natural mineral is used to shield against the harmful effects of the sun by forming a protective physical barrier over the skin. Zinc oxide is an essential mineral that helps boost the body’s immune system and supports new cell production and healthy skin it is also antimicrobial and de-sensitizes the skin.
A current concern for the cosmetics industry, particularly with the daily use of sunscreens in everyday products, is the sensitization of the skin by the various chemicals in formulations. Numerous studies have shown that zinc oxide does not cause sensitization. If zinc oxide reacts with the skin, it will be dissolved by the acidic pH of the skin and converted to Zn2+ ions. The body uses zinc in this form to carry out the body’s essential functions.
J. LeClerc Suncare utilizes cutting edge formulations of zinc and titanium dioxide. This provides natural, non-chemical , mineral protection that blocks UVA and UVB and are ideal for sensitive skin types and children.