
Is your shampoo safe?
MIT or Methylisothiazolinone is a common biocide (kills all living organisms) and preservative used in industrial and household products such as shampoos, toothpastes and soaps. Also MIT is used in dehumidifiers so it can be detected in air conditioned indoor air. When it was introduced in the market as an ingredient of cosmetics and personal care products there were not studies testing in any way its safety.
This changed in 2002 when the first study by Dr Shen Du from the University of Pittsburg was published and reported that MIT displays strong neurotoxic and cytotoxic properties in vitro; this means that cells and specifically neurons die, upon exposure to MIT. This specific research was done in cell cultures, not live animals and rather large doses of MIT were used but the results were very impressive (and sad), cells sustained extensive injuries and MIT-induced cell death.
Another study in 2004 from the same research group tried to simulate chronic exposure to MIT, like the one most of us probably have sustained while using toothpastes, hair dyes and shampoos containing small doses of MIT for prolonged period of times. MIT was found to inhibit proper growth and development of neurons. Imagine the potential damage unborn babies are subjected to because the mother shampoos her hair or brushes her teeth with MIT loaded products. In the study, the length of neural axis only managed to reach half of the total length it reached without MIT; this could mean fewer synapses (connections between neural cells) and reduced brain development for the newborn. Bear in mind that all the neural cells we have are created while in our mother’s womb, no new cells are created once we are born. The development of the brain after that stage is basically a matter of creating and establishing new neural networks which is translated as learning new skills and storing memories. I don’t even dare to think of how much brain power the last generation has lost from this chronic and debilitating poisoning it has been subjected to.
Both publications I am talking about were published in peer-reviewed scientific journals and are available to download for free through the following links.
Du et al, 2002
He et al, 2004
Despite the above research that should at least create some doubts about the safety of MIT in air conditioners and cosmetics, it is still considered safe and authorities say there is not enough evidence about it being toxic. This story is very old and we have seen it for many dangerous chemicals in widely used products and I honestly don’t understand how these people who are supposed to be responsible for protecting public health say this kind of BS. Animal studies are acceptable when a new toxic drug is tested and needs approval to go to the next stage of clinical trials; but this is not the case for neurotoxins which poison babies, children and adults all their lives, animal studies are certainly not enough in this case…. Regulatory authorities in the USA, Japan, Europe and more than 25 other countries have all independently concluded the product is safe. CFTA (Cosmetic, Toiletry and Fragrance Association) responded
“The abstract on Methylisothiazolinone (MI), presented at the Cell Biology 2004 meeting of the American Society for Cell Biology (ASCB) lacks a credible scientific basis in suggesting that MI could be a safety issue for consumers using personal care products. In determining the safety of any ingredient, a major factor is exposure. Cosmetic exposure is so much lower than what is presented in this abstract as to make the study meaningless for safety evaluation purposes regarding cosmetic products.”
In my personal and scientific opinion, the experiments in Pittsburg, should be the trigger for more experiments to be designed and funded in order to properly clarify and establish whether MIT is safe or not. This hasn’t happened of course and at the moment there are hundreds of widely used products out there which may be poisoning our brains. Chances are that they do that indeed. You dont have to be a rocket scientist to suspect that something poisoning cells is probably going to be quite harmful for the whole body and it will keep on poisoning the same cells once it is inside the body! Revelation…
A basic list of products containing MIT follows. It is by no means extensive or complete so do your own research. As always, I have one piece of golden advice: Read the Labels!
A tool which you will find awesomely useful in your quest of natural, toxic-free cosmetics is skindeep, a massive online database of personal care products with all their ingredients listed. With this tool you can interrogate the products you use already to check if they have any toxic inside and if yes, you can find safer products to use instead.
Soap Bars
Camay soap bar
Dove soap bar with ¼ moisturizing lotion
Oil of Olay bar soap for soft moisturized skin
Body Baths
Vaseline Intensive Care foaming crème bath, Botanical Garden
Vaseline Intensive Care Moisturizing Bath and Body oil
Vaseline Intensive Care Moisturizing Bath Beads Enriched with Aloe
Vaseline Intensive Care Moisturizing Bath Beads Peaceful Orchard
Vaseline Intensive Care Moisturizing Bath Beads Petal Soft
Vaseline Intensive Care Moisturizing Bath Beads Vitamin E
Vaseline Intensive Care Soft Petal Foaming Crème Bath
Dove Sensitive Skin Moisturizing Body Wash
Dove Ultra Moisturizing Body Wash
Vaseline Intensive Care Moisturizing Body Wash
Hair Conditioners
Clairol Herbal Essences Conditioner-Fine/Limp Hair
Clairol Intensive Blends Conditioners (4 types)
Pantene Pro V Color Revival Conditioner
Pantene Pro V Constant Care Conditioner
Pantene Pro V Deep Hydrating Treatment
Pantene Pro V Detangle Light Spray Conditioner
Pantene Pro V Essentials Hair Revival Cream
Pantene Pro V Essentials Instant Hair Quencher
Pantene Pro V Hydrating curls conditioner
Pantene Pro V Sheer Volume Conditioner
Pantene Pro V Smooth & Sleek Conditioner
Pantene Pro V: Provitamin Daily Treatment & Conditioner – Fine Hair
Pantene Pro V: Provitamin Daily Treatment Conditioner Dry Hair
Salon Selectives Conditioner Type P Protective
Salon Selectives Conditioner Type M Moisturizing
Vida Sassoon Conditioning Rinse- Stylists Choice
Hair Styling Products
Clairol 3 in 1 Mousse Maximum hold
LOreal Pumping Curls for Culry Hair
Pantene Pro V Ready, Set Curl Reviving Treatment
Pantene Pro V: (Alcohol Free) Styling Mousse Extra
Vidal Sassoon Alcohol Free Styling Gel Extra Hold
Vidal Sassoon Alcohol Free Styling Mousse Extra Body
Clairol 3 in 1 Condition Hairspray Extra Hold, unscented, Aerosol
Clairol Final Net all Day Hold Hairspray – Regular
Pantene Pro V Essentials Natural Body Booster Spray
Pantene Pro V Hold & Protect Non Aerosol Hairspray
Pantene Pro V Settique (the whole group of Aerosol and non Aerosol sprays)
Pantene Pro V Settique Hold & Protect with Colorshine
Pantene Pro V Shine on Glossing Spray with Colorshine
Pantene Pro V: Provitamin Wet/Dry Styling Hold Spray
Vidal Sassoon Alcohol Free spray on Gel-Extra hold
Vidal Sassoon Non Aerosol Finishing Hair Spray Ext
Shampoos
Clairol herbal Essences Intensive Blends Replenishing Shampoo
Clairol herbal Essences Shampoo- Fine/Limp Hair
Clairol herbal Essences Shampoo- Normal Hair
Clairol Intensive Blends Moisturizing Shampoo for Normal Hair
Clairol Intensive Blends Shampoo Protecting for Colored/Permed Hair
Pantene Pro V Classically Clean Shampoo
Pantene Pro V Essentials, Daily Strengthening Complex-1
Pantene Pro V Essentials, Daily Strengthening Complex-2
Pantene Pro V Hydrating curls shampoo
Pantene Pro V Purity Clarifying Shampoo
Pantene Pro V Sheer Volume Shampoo
Pantene Pro V Smooth and Sleek Shampoo
Salon Selectives Botanical Blends Shampoo: Aloe
Salon Selectives Shampoo Level 1: Frequent Use
Salon Selectives Shampoo Level 4: Extra Moisturizing
Salon Selectives Shampoo Level 5: Regular-Normal
Hair Dyes
Clairol Herbal Essences, True Intense Color
Clairol Hydrience Permanent Hair Color
Clairol Revitalique Permanent Hair Color
Garnier Nutrisse Permanent Crème Haircolor
Grecian Formula
LOreal Feria Haircolor
LOreal Open Haircolor
LOreal Preference Haircolor
Revlon High Dimension 10 Minute Permanent Haircolor
Mouthwashes
Listerine
Toothpastes
Aquafresh
Colgate (Baking Soda, kids, Tartar control, total)
Crest (Cavity Protection, Extra Whitening, Multi Care, Rejuvenating Effects, Sensitivity Protection, Tartar Control)
Sensodyne (Anticavity, Extra Whitening)
Baby Products
Johnsons Baby Bath
Johnsons Baby Bedtime
Johnsons Baby Soothing Vapor Bath
Johnsons Moisturizing Baby Bath
Johnsons Baby soap Bar
Johnsons Baby Shampoo
Johnsons kids Head to Toe
Johnsons Baby Lotion
Johnsons Baby oil
Vaseline Nursery Jelly
Vaseline Petroleum Jelly