JOY FEELINGS MAGAZINE December 2016 New Year issue | Page 63

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through the skin, and accumulates in the bones. Large
accumulations can result in leg cramps, muscle weakness,
numbness and depression. Lead can be a contaminant in
many different kinds of products including sunscreens,
foundation, nail colours, whitening toothpaste, and
lipstick. A 2008 study by Health Canada found lead in 21
of 26 lipsticks tested. Although lead is prohibited from
use in lipsticks, it can be found in colour additives or as
impurities in ingredients. It is an ingredient in Grecian
Formula 16 and other dark hair dyes for men available in
the US, but it is banned from the formulas used in Canada
and Europe.
Mercury - See Thimerosol.
Methylisothiazolinone
and
Methylchloroisothiazolinone Methylisothiazolinone
and methylchloroisothiazolinone are preservatives used in
many cosmetics and personal care products. They are
most often found in hair products -- shampoos,
conditioners and dyes -- but they are also used in body
washes and cleansers. They have been shown in animal
studies to be toxic to the immune system and possibly to
the developing nervous system. Health Canada's Hotlist
allows them to be used together in very limited
concentrations for rinse-off products and in even smaller
concentrations for leave-on products.

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