The microbiologist’s work is getting more difficult as formulators eschew traditional preservation systems for ones that
require a boost to ensure proper preservation. These new systems, noted Sonja Lüthje, Schülke & Mayr, often call for low or
no water content, extreme pH, incorporation of chelating agents,
proper packaging and safe processes to reduce microbial growth.
In addition, these softer systems often require boosters to ensure
product safety. For example, ethylhexylglycerin can be added to
phenoxyethanol, or propanediol can be added to a combination
of ethyhexylglycerin and phenoxyethanol.
“Non-traditional preservatives are more influenced by a
range of factors,” she concluded.
One way to reduce the spread of germs at the user level is to
use a hand sanitizer. Christopher Heisig of Steris explained how
formulation techniques impact their efficacy.
“Improper formulation can negatively impact the antimicrobial efficacy of your entire skin care regimen,” he explained.
For example, the addition of an appropriate rheology modifier to an alcohol-based system at the proper concentration slows
the evaporation rate of the alcohol, thereby increasing the overall
efficacy of the finished formulation. Similarly, Heisig urged formulators to think about the emollients and humectants they add
to their formulations, noting that some users may apply hand
sanitizer many times a day.
Obesity is no longer just as US problem—it’s a global issue.
Furthermore, Type 2 diabetes, an obesity byproduct, causes a host
of health problems and may be responsible for glycated skin.
According to Fred Zuelli of Mibelle Biochemistry, glycated pro-
teins accumulate in the skin of diabetics and lead to a loss of
elasticity and premature skin aging.
SCC RECOGNIZES THE NEXT GENERATION
•The Student Poster Showcase, which takes place during the
Scientific Seminar, promotes student research in the cosmetic industry.
this year there were 14 posters presented highlighting each individual
student’s ideas and research. Schools represented included Jones
County Junior College, the University of Cincinnati, the University of
Southern mississippi, St. Louis University and the University of Guelph
(Canada). the Poster awards are sponsored by DD Chemco. members
of the Committee on Scientific affairs judged the posters and the award
for first Place went to Shona Burkes (University of Cincinnati) for her
poster entitled “Determination of infantile Hemangioma Progression Using
non-invasive imaging modalities.” Second Place was awarded to asmira
Selimovic (St. Louis University) for her poster entitled “encapsulated
electrodes for microchip Devices: microarrays and Platinized electrodes
for Signal enhancement of nitric Oxide Detection.” third Place was
awarded to Sudhir Baswan (University of Cincinnati) for his poster enti-
tled “Characterization of ion transport in Human nail Plate.” fourth Place
was awarded to Laura Hardebeck (St. Louis University) for her poster
entitled “Predicting Dna-intercalator Binding: the Development of an
arene-arene Stacking Parameter.”
in addition, the Society of Cosmetic Chemists award sponsored
by rhodia novecare was noted during the luncheon on thursday.
the award was won by elizabeth Grice, Ph.D. for her paper entitled
“Surveying the Skin microbiome and Host response in Health and
Disease.” this award recognizes the Best Paper presented at the 2012
annual Scientific meeting.
Student poster winners are flanked by award sponsor Bret Katz, DD
Chemco (left), and Guy Padulo, SCC president.