Catherine
Having discussed this with my daughter, Dr. Helen Taylor, here are our
thoughts.
From your e-mail it appears that what she is testing is the finished product
and not the individual constituents. If this is the case and if the
manufacturer has had the product tested and it has been found to be suitable
for pregnant persons (i.e. there is no warning against this on the product
labelling), then as far as we can see, there should be no significant
increased risk for her even though pregnant.
As a general rule, virtually all cosmetic products carry some risk of
sensitisation although careful formulation can reduce this to a minimum.
Bear in mind that according to the latest work on patch testing (Anton de
Groot, Patch Testing, 3rd edition) there are 4,350 substances known to
dermatologists as sensitisers and for which there is a patch test protocol.
Many of the essential oils feature in this. (Take a look at the Powerpoint
slide attached, taken from our course on skin in the working environment)
I am not aware of any increased risk of sensitisation due to pregnancy.
However, as it happens I shall be in the library at the Royal Society of
Medicine tomorrow doing some research into certain aspects of skin in the
working environment and will see if I can find anything out on this. If I do
find something relevant then I will post about this on the forum.
Chris Packham
FRSPH, FIIRSM, FInstSMM, MCMI, MBICSc
Dermatological Engineer
EnviroDerm Services
'Hedworth', Grange Court, Westbury-on-Severn, GL14 1PL
Tel: 01386 832 311
Mobile: 07818 035 898
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