Raylene really needs to know…I don’t like the idea of chemicals in cosmetics getting into my body. Is there anyway to block this?
The Beauty Brains respond:
Since most ingredients don’t penetrate skin this isn’t really an issue. That’s because most chemicals are too large to diffuse through the skin. (Read this post on how much chemical exposure do you really get from cosmetics.) In fact, you need special dermal patches, formulated with penetration enhancers, to get things like nicotine and sea sickness drugs through your skin and into your blood. But I did find one interesting example of a skin lotion that is designed to STOP chemicals from entering your body.
Anti-snake venom cream
Thankfully this isn’t an issue everyone will have to worry about but if you’re ever bitten by a snake you can take comfort in the fact that scientists have developed a new skin cream that slows down the absorption of venom. Interestingly, snake venom enters the blood through the lymphatic system because the bite penetrates tissue not blood vessels. Researchers at the University of Newcastle at Callaghan, Australia developed a cream containing nitric oxide cream which stops the lymphatic system from pumping. The result – it takes almost twice as long for the venom to kill you, hopefully giving you time to seek medical treatment.
Reference: New Scientist
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