One more myth - that deodorants and antiperspirants include parabens. This is FALSE - they do not and virtually never have. I welcome folks to read ingredient labels next time they're in the store.
These products don't need preservatives because:
1) they're largely anhydrous (no water) and microbes need water to grow.
2) they include ingredients that kill microbes - acidic aluminum salts in antiperspirants and glycols in deodorants, as well as perfume chemicals
3) they are made and packed with heat or pressure - both of which kill microbes.
I'm a PhD microbiologist who has worked in the cosmetic industry for decades. I've seen but one such product using parabens - ironically it was an "herbal" product and was available only by on-line ordering.
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One more myth - that deodorants and antiperspirants include parabens. This is FALSE - they do not and virtually never have. I welcome folks to read ingredient labels next time they're in the store.
These products don't need preservatives because:
1) they're largely anhydrous (no water) and microbes need water to grow.
2) they include ingredients that kill microbes - acidic aluminum salts in antiperspirants and glycols in deodorants, as well as perfume chemicals
3) they are made and packed with heat or pressure - both of which kill microbes.
I'm a PhD microbiologist who has worked in the cosmetic industry for decades. I've seen but one such product using parabens - ironically it was an "herbal" product and was available only by on-line ordering.
September 30, 2009 - 7:09amThis Comment
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