CONSUMERS AND COMPANIES ALIKE SEEK MILDER,
BUT EFFECTIVE PRESERVATION SYSTEMS FOR
PERSONAL CARE AND HOUSEHOLD PRODUCTS.
NOTHING SAYS pretty like an eyeshadow in a cappuccino brown…with a touch of Bacillus cereus. Or what about a rich moisturizer with a hint of mold? It happens, especially if a formulator—or its contract manufacturing partner—
isn’t prudent when it comes to production, and more specifically,
But product preservation has been complicated in recent
years by small, but very vocal, groups publically railing against
the use of traditional technologies like parabens and phthalates.
“It’s been a continuing challenge with all the blogs, e-news-blasts and other stories stimulating the public’s perception (some
science-based and many not science based) about the efficacy
of chemical ingredients, including preservatives,” said Kevin D.
Sathre, vice president of sales at Coast Southwest, which works
with global preservatives manufacturer Sharon Laboratories.
As a result, marketers and suppliers in the personal care industry are seeking natural, milder yet still effective preservative
systems and technologies.
Leading preservatives suppliers are up for the challenge, offering a wide range of solutions that provide adequate protection
and answer consumer demands.
“The rules of the game for preservation have been chang-
ing,” noted Sathre. ”Customers want milder formulations than
previous formaldehyde donor or isothiazolinone chemistries.
Preservatives now can be multifunctional or using nontraditional
materials to create‘preservative free’blends that offer broad spec-
trum efficacy that meets the standards of micro challenge testing
and shelf-life requirements.”
Sharon Laboratories, for instance, has blends with caprylyl
glycol and 1,2-hexylenediol, which are emollients and humec-
tants that are also potentiators or boosters that increase the
efficacy of the preservative blend, according to Sathre. Some
blends have the traditional phenoxyethanol and benzyl alcohol
preservatives but others contain non-traditional phenethyl al-
cohol or phenylpropanol. Sharomix HP, CPA and CPP, he said,
can be considered“preservative-free” blends that provide broad-
spectrum efficacy even though they are milder than traditional
Sharon Biomix blends, which are paraben-free, formalde-hyde-free, and halogen-free, offer all-natural broad spectrum
preservatives with Pure I and II, but the company also offers“na-ture identical” with Biomix Free I and II and ECO, which conform
to Ecocert standards, according to Sathre.
According to Sathre, when one customer that had tried many
natural preservatives in their all-natural body care line opted for
Biomix Pure I in a lotion and body wash, each product in the line
passed microbiological challenge testing.
“The customer had a successful launch of the product line
with confidence that he will not have any contamination issues,”
Preservation and Certification
Phil Hindley, global marketing manager-preservation, Lonza
Consumer Care, also addressed the shifting tide around preservation, including pressure companies face in meeting global
Christine Esposito • Associate Editor
What lies beneath the lid?
Proper preservation can protect
moisturizers from developing mold.