to my fellow istoryans, what can you say about this? does your hair products contain these chemicals??
and, naa mo nakit-an nga shampoo or conditioner nga wala ani??
When taking a shower or visiting hair salons, it is doubtful you ever consider the question, "How is this [shampoo, hair dye, styling gel] affecting my health? Though perhaps more people should pay attention to the products they are using on their hair on a daily basis, as some contain potentially dangerous chemical.
Sodium Lauryl Sulfate (SLS)
Sodium Lauryl Sulfate (SLS) is a forming agent and one of the most commonly used chemicals found in hair care products. There are literally hundreds of scientific articles highlighting its toxicity. It readily penetrates the dermis. The chemical properties of SLS are such that it is used in many cleaning agents: car wash soaps, garage floor cleaners, engine degreasers and 90% of all foam producing products. Health hazards caused by SLS include tissue damage that could result in liver, brain, heart and lung damage in the long term; eye damage; degradation of the immune system; severe skin irritation; hair loss and eczema. When absorbed through the skin Sodium Lauryl Sulfate maintains residual levels in the heart, liver, lungs and brain. Sodium Lauryl is an animal teratogen (causes birth defects or malformations)
MIT (methylisothiazolinone)
While the purpose of MIT is to prevent bacteria from developing, researchers found that contact with it restricted growth of axons and dendrites of immature nerves found in rat brain cells. The rat studies also showed that chronic exposure to this chemical led to a malfunction in the way neurons communicate with one another. One researcher explained that direct exposure to high concentrations of MIT would irritate the skin because it can damage skin cells.
MIT (methylisothiazolinone) is found in antimicrobial soaps, hand soaps, dish soaps and a surprising number of personal care products, including shampoo and other hair care products. People buy these hair care products thinking they're protecting themselves from infectious microbes. They think it makes them immune to viruses and bacteria that might be found in their bathrooms or kitchens, and thus they believe in the mythology of using antimicrobial soaps to create a sterile environment in their own homes.
Nitrosamines
Hair care products containing as ingredients amines or amino derivatives, particularly di- or triethanolamine, may form nitrosamines if they also contain an ingredient which acts as a nitrosating agent as, for example, 2-bromo-2-nitropropane-1,3-diol (Bronopol, Onyxide 500), 5-bromo-5-nitro-1,3-dioxane (Bronidox C) or tris(hydroxymethyl)nitromethane (Tris Nitro), or if they are contaminated with a nitrosating agent, e.g., sodium nitrite. Amines and their derivatives are mostly present in creams, cream lotions, hair shampoos and cream hair conditioners. The nitrosation may occur during manufacture or during product storage.
Many nitrosamines have been determined to cause cancer in laboratory animals. They have also been shown to penetrate the skin. Nitrosamines can lead to developmental and reproductive toxicity, allergies, immunotoxicity and endocrine disruption. Nitrosamine contamination became an issue in early 1977. In a study of 29 cosmetic creams and lotions, N-Nitrosodiethanolamine (NDELA) was determined in 27.
Hair Dyes
Long-term use of hair dye promotes lymphatic cancer, says new research from Yale University. The finding isn't surprising: the toxic ingredients used in hair dyes have long been known to be highly carcinogenic. It's yet another example of the health dangers of personal care products like deodorant, perfume, shampoo and soap: all of which contain toxic ingredients that are inevitably absorbed through the skin and enter the bloodstream.
Yale researchers have found that lifetime users of hair coloring products have an increased risk of developing non-Hodgkin's lymphoma (NHL), a cancer that attacks the lymphatic system, part of the body's immune system. This is the first study to examine the impact of hair dye use with time period of use as a key factor. Source: Science Daily
Chlorine and Hair
"One out of every two clients coming into the salon has chlorine damage to their hair," says Vancouver's top hairdresser Derek London, "It's almost the same as oxidation from peroxide burning, except chlorine adds density to the hair. You see a lot of breakage and splitting. The chlorine makes hair shiny like fiberglass. Hair tangles when it's shampooed and becomes difficult to comb."
more on MIT:
Shampoo Ingredient Kills Rats' Brain Cells
Read your shampoo's label: Study finds common ingredient stunts developing neurons of rats