Dagenais said:
Although I certainly don't agree with excessively washing your hands, which is a symptom of OCD and sometimes even verminophobia, it's good to keep those hands sanatized. I always read in my biology textbooks or hear some M.D. on the news telling us to wash our hands - especially during flu seasons.
I think that's where there's some disagreement. People are told to wash hands, don't expose children to germs, etc. Certainly, when a particularly bad flu strain is going around, you want to be careful not to let your kids catch it because flu is dangerous for children, but there is another camp that argues children should be exposed to some other common germs, such as the cold virus, so they develop stronger immunity to these. But, like I mentioned above, I haven't looked into these articles personally, so don't know how much controversy there really is.
Not eating things that drop on the floor...is that really a bad thing?
With children, more like impossible to prevent. It's normal for infants and toddlers to put everything in their mouths, and if they are playing on the floor and their hands are going in their mouths, is there any difference about the toys going in their mouths too?
Do you mean Aloe Vera? I think that's the gel you're talking about that's added in soup to not dry out your hands:
Um, no, I'm referring to all the other additives.
I have one of those little bottles of
hand sanitizer here (I didn't say I refuse to use it, I keep a bottle with me when traveling...I figure whatever residue it leaves on my hands is probably better than what I might get on my hands in a public restroom that's out of soap).
Straight from the bottle:
Active ingredient: ethyl alcohol 62%
Inactive ingredients: water, glycerin, isopropyl myristate, propylene glycol, tocopheryl acetate, aminoethyl propanol, carbomer, fragrance.
It's always that last one that bugs me...fragrance...no details of what exactly the chemical composition of the fragrance is.
The glycerin would be a good moisturizer, so the water and glycerin don't concern me. Tocopheryl acetate is vitamin E, so that's okay. Propylene glycol is fairly non-toxic, unless you decide to drink a lot of it for some reason (it's a food additive as well as a cosmetic additive).
Here is some info on the other ingredients obtained from the household products database:
http://householdproducts.nlm.nih.gov/index.htm
ISOPROPYL MYRISTATE
CASRN: 110-27-0
Human Health Effects:
Skin, Eye and Respiratory Irritations:
A human skin irritant.
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 1990]**PEER REVIEWED**
Probable Routes of Human Exposure:
NIOSH (NOES Survey 1981-1983) has statistically estimated that 89,529 workers (54,377 of these are female) are potentially exposed to isopropyl myristate in the US(1). Occupational exposure to isopropyl myristate may occur through dermal contact with this compound at workplaces where isopropyl myristate is produced or used(SRC). The general population may be exposed to isopropyl myristate due to its use in cosmetics and topical medicinal preparations(2,3).
2-AMINO-2-METHYLPROPANOL
CASRN: 124-68-5
Human Health Effects:
Human Toxicity Excerpts:
PROLONGED SKIN EXPOSURE MAY CAUSE IRRITATION DUE TO THE ALKALINITY OF THE FREE MATERIAL...
[Gosselin, R.E., H.C. Hodge, R.P. Smith, and M.N. Gleason. Clinical Toxicology of Commercial Products. 4th ed. Baltimore: Williams and Wilkins, 1976.,p. II-74]**PEER REVIEWED**
...IN MOST COMMERCIAL FORMULAS /OF 2-AMINO-2-METHYL-1-PROPANOL/...ALKALINITY IS NEUTRALIZED.
[Gosselin, R.E., H.C. Hodge, R.P. Smith, and M.N. Gleason. Clinical Toxicology of Commercial Products. 4th ed. Baltimore: Williams and Wilkins, 1976.,p. II-74]**PEER REVIEWED**
Minimum Fatal Dose Level:
3. 3= MODERATELY TOXIC: PROBABLE ORAL LETHAL DOSE (HUMAN) 0.5-5 G/KG, BETWEEN 1 OZ & 1 PINT (OR 1 LB) FOR 70 KG PERSON (150 LB).
[Gosselin, R.E., H.C. Hodge, R.P. Smith, and M.N. Gleason. Clinical Toxicology of Commercial Products. 4th ed. Baltimore: Williams and Wilkins, 1976.,p. II-74]**PEER REVIEWED**
Chemical Information
Chemical Name:
Carbomer
CAS Registry Number:
009003-01-4
Synonyms:
Carbomer; 2-Propenoic acid, homopolymer; Carbomer 934 [USAN]; Carbomer 940 [USAN]; Polyacrylic acid; Acrylic polymer(s); Carbomer 941 [USAN]; Acrylic acid, polymers; Acrysol lmw-20X; Polymer of 2-propenoic acid, cross-linked with allyl ethers of pentaerythritol
Health Studies:
***No information available in HSDB at this time***
I'm not even that worried about the skin contact so much as the small amounts that are ingested if you use these products to sanitize your hands then sit down and eat a burger or your kids then put their hands in their mouth as kids do. None of these is described as toxic at these low levels, but is anything known about chronic low level exposure? It seems the studies focus more on acute toxicity at high doses, like when the kid or dog drinks down a whole bottle and someone needs to know how to treat them.
I'm don't mean to sound paranoid about these products, I'm really not, but I think it's worth considering the balance between their usefulness and potential harm. Are there any toxicologists here who can shed more light on these issues?