Not to freak you out or anything, but there might be horrible chemicals in practically every beauty product you use that could seep into your bloodstream and build up toxicity over time. If you’re even slightly the paranoid type, this information is enough to make you want to revamp that makeup drawer.
You might actually be more likely to absorb dangerous chemicals directly into your bloodstream through your skin than if you were to ingest them (where enzymes can break them down). If you're not convinced, the common occurrence of systemic side effects when using prescribed topically applied ointments is indicative of high absorption through the skin. Transdermal patches are becoming a common way to administer drugs because they "avoid the digestive tract completely and the drug is slowly absorbed across the skin directly into the circulation resulting in a long lasting effect."
For many of these controversial ingredients, the FDA claims that the amount in products is not significant enough to actually do any harm, but with breast cancer rates up higher than ever, you can never be too safe.
Permanent and Semi-Permanent Hair Dyes (Especially Darker Colors)
Several studies have linked longtime hair dye use to bladder cancer, non-Hodgkin’s lymphoma, and multiple myeloma. Researchers found that rodents that were fed these compounds from coal-tar in certain hair dyes were more likely to develop cancer than rodents that were not fed these compounds. Read more about it here.
Scary Scientific Fact: Aside from cancer scares, you could build up a tolerance to the chemicals and eventually suffer from a scary allergic reaction, even if you've been using the same product for years. Just do a little Google image search of "hair dye allergies." Shudder.
How To Avoid: There's always lemon juice for lightening and tea to cover up gray.
Compound Henna Hair Dye
Despite the "all natural" ingredients, there are almost always metallic salts used as pigmentation lurking in any henna dye that claims to dye your hair any color other than "reddish." These dyes are known as compound henna hair products, and many of the boxes don't even list metallic salts as an ingredient.
Scary Scientific Fact: If you've dyed your hair with a compound henna hair product, you should wait at least a year or two before re-dyeing with any kind of chemical hair dye containing hydrogen peroxide. According to HennaForHair.com, your hair "may turn frog butt green or offshore sewage outlet black." The chemical reaction could also cause your hair to SMOKE and emit a foul odor.
How To Avoid: Do a strand test by taking some of your henna-dyed hair from a hairbrush and testing the chemical dye over it. If something catastrophic happens, then you know you've got metallic salts in your henna.
