Cosmetic Surgery and Beauty Magazine #66

eauty & spa
Product testing:
getting
it right
SUNSCREEN
jane iredale conducts extensive testing of its sunscreen
products to determine their effi cacy in terms of UVA and
UVB protection in compliance with both US FDA and
international requirements and testing methodologies.
HPLC
This is an in vitro test conducted with light rays to determine
the percentage of active ingredients. It is required by some
countries to register products claiming an SPF. The light rays
measure the absorption and refl ection of light to confi rm
the percentage of actives, in this case titanium dioxide and
zinc oxide.
STABILITY TEST
This measures shelf life. The product can be tested in real
time, provided the product has been in the line long enough,
or it can be measured through an incubation process where
the product is subjected to intense heat and cold for a
period of one month. This acceleration is equal to one year.
REPEAT INSULT PATCH TEST
This is a sensitivity test conducted on 50 people per
product. This is a two-phase test which tests irritancy
and sensitivity. During the fi rst phase, the test is repeated
three times on the same subject within a week.
There is a 10 to 14 day break and then the subject is
patch-tested for three consecutive days. There is a 24-hour
evaluation and 48-hour evaluation.
In every case, the results of being tested with jane iredale
products were negative. No sensitivity was recorded to
any of the products. The legitimate claims jane iredale can
now make are: Dermatologist Tested. Non-irritating. Safety
Tested. Allergy Tested. Clinically Tested. Hypoallergenic.
PET (CHALLENGE TEST)
This test proves the effi cacy of the preservative system. jane
iredale is particularly interested in the results because of its
insistence on using systems that don’t rely on parabens
and phenoxyethanol but rely on more natural methods. In
a laboratory, bacteria, yeast and mold were introduced into
the product.
Staphylococcus epidermidis, Pseudomoas aeruginosa
and Escerichia coli (E. coli) were introduced a second and
third time after allowing seven days of incubation. The test
allows the evaluation of the real capacity of the preservative
system of not only preventing microbial contamination but
also reducing it to a level that is safe for human health. In
other words, the preservative system has to be able to kill
the organisms. When the test was fi nished (after 21 days),
no microbial activity was detectable.
COMEDOGENICITY
jane iredale has completed comedogenicity tests on all
products. All products showed no comedogenicity.
HEAVY METALS
jane iredale has conducted heavy metal tests on all
products. There is no measurable amount of heavy metals
in any product including lead and nickel. jane iredale
conducts tests on each of its products not because it’s
required but because the company fi rmly believes in offering
the consumer the highest quality product line possible.
To fi nd your local jane iredale stockist jump online to
www.janeiredale.com.au or call 1300 850 008
www.cosbeauty.com.au 123