Features

Alternative Preservatives

By Tom Branna, Editorial Director | August 29, 2011

Inolex Chemical offers personal care and household product formulators a novel chelating technology to prevent the growth of A. niger and make a variety of consumer-friendly claims.

Traditional preservatives have been in the news for the past couple of years, but in many cases, for all the wrong reasons. Environmental groups and regulators have taken aim at these important ingredients, especially parabens, basing their arguments on flimsy links to cancer. No wonder why there has been a renewed call for paraben-free cosmetic and personal care formulas. But how can chemists produce these products and, at the same time, ensure their safety? Inolex executives say they have an answer via their innovative chelating technology.


“The world of alternative preservatives is evolving,” explained Daniel Winn, PhD, director, personal care, Inolex Chemical. “Inolex is an expert in how to create paraben-free formulas.”


To overcome the weak fungistatic properties of glycols, which have good bacteriostatic properties, Inolex researchers turned to caprylhydroxamic acid (CHA), said to be an ideal organic acid, because it is effective at neutral pH and it has selective and powerful chelation for Fe2+ and Fe3+.Mold growth is reduced in iron-limited environments.


The first generation of materials from Inolex blended CHA with the glycols and the result was a broad product line that includes Spectrastat (CHA + caprylyl glycol), Spectrastat G (CHA + glyceryl caprylate) and Spectrastat E (CHA + ethylgexylglycerin). These blends debuted in 2008 and have been used by several companies in a wide range of leave-on skin care and prestige cosmetics.


Cost-Effective Solutions


But Inolex researchers realized that there was still a need for CHA blends using economical glycols for use in mass-market cosmetics and toiletries. This demand led to the creation last year of CHA blends based on cost effective aromatic glycols, such as phenoxyethanol, benzyl alcohol and phenylethyl alcohol.


More specifically, Inolex’s Phenostat combines CHA, phenoxyethanol and methylpropanediol. The recommended use level is 1%. The company notes that phenoxyethanol is a globally-approved preservative and remains consumer-acceptable in most markets. Methylpropanediol is a safe and widely used liquid diluent.


Benzostat includes CHA, benzyl alcohol and glycerin. Benzyl alcohol is a widely used fragrance ingredient and approved preservative. Benzostat’s recommended use level is also 1%.


Finally, new Aromastat contains CHA, phenylethyl alcohol and glycerin. Phenethyl alcohol is also a widely used fragrance ingredient and when incorporated into personal care products, it enables formulators to make preservative-free and paraben-free claims.


Phenostat, Benzostat and Aromastat are all recommended for products such as cleansing body washes, moisturizing lotions and baby wipes. Phenostat is also recommended for use in sun care products. All three are approved for use in the European Union, Japan, Canada and Australia.


Just as important, Inolex’s patent-pending, CHA-based systems enable formulators to make paraben-free, preservative-free, even biocide-free claims.


“We can offer formulators a wide range of premium and economical blends based on CHA technology,” explained Winn.“CHA is a novel chelating agent, that together with glycols, provides guaranteed, broad-spectrum performance.”

Related Raw Materials:

blog comments powered by Disqus
  • The Butler Does It

    The Butler Does It

    August 15, 2016
    A new green cleaning product at your service.

  • Individualism IS The American Way

    Individualism IS The American Way

    Tom Branna, Editorial Director||August 15, 2016
    Why blue hair and BB creams still thrill US consumers.

  • What

    What's Next for the UK?

    Sarah Boumphrey, Euromonitor International||June 27, 2016
    Euromonitor weighs in on how Brexit could impact consumer product companies.

  • Silent Partners

    Silent Partners

    Christine Esposito, Associate Editor||August 1, 2016
    From research & development to logistics to confidentiality, savvy distributors help finished formulators achieve their goals

  • Perceived Perfection

    Perceived Perfection

    Christine Esposito, Associate Editor||July 1, 2016
    From primers to pressed powders, facial cosmetics help create the illusion of a flawless complexion.

  • Preserve & Serve

    Preserve & Serve

    Melissa Meisel , Associate Editor||July 1, 2016
    Suppliers with innovative preservatives provide staying power for formulations.

  • April in Paris

    April in Paris

    Tom Branna, Editorial Director||June 1, 2016
    In-Cosmetics sets attendance record in its return to the City of Light.

  • Inspiring the Next Generation Of Personal Care Products

    Inspiring the Next Generation Of Personal Care Products

    March 1, 2016
    In-Cosmetics 2016 returns to Paris next month, April 12-14, 2016.

  • Testing for Sustainable Preservatives

    Adam P. Byrne, William Michael Hart-Cooper, Kaj Johnson, Larry H. Stanker, Dominic W. S. Wong, William J. Orts||January 4, 2016
    A rapid, inexpensive and qualitative protocol for determining microbial growth inhibition.

  • It’s All About Teamwork

    It’s All About Teamwork

    Melissa Meisel , Associate Editor||January 4, 2016
    Collaboration was the theme of the Consumer Specialty Products Association 2015 annual meeting.

  • Just Wild About Harry’s Cosmeticology

    Just Wild About Harry’s Cosmeticology

    Tom Branna, Editorial Director||November 2, 2015
    The ninth edition, edited by Meyer Rosen, has been expanded and improved with an emphasis on the future of the industry.

  • Market Your Cosmetics In Europe with Safety

    Market Your Cosmetics In Europe with Safety

    Pascal Yvon, IDEA TESTS Group||October 1, 2015
    Compliance to European safety regulations for cosmetic products, final formulations and ingredients.

  • With or Without You

    With or Without You

    Christine Esposito, Associate Editor||May 3, 2013
    The latest word on preservatives.

  • All Under One Roof

    All Under One Roof

    Tom Branna, Editorial Director||May 3, 2013
    A visit with Spectrum Chemicals.

  • On the Wild Side

    On the Wild Side

    Tom Branna, Editorial Director||November 21, 2012
    The IFSCC Congress is held in Johannesburg, South Africa, marking the first time that the Congress is held on the continent.

  • One for the Ages

    One for the Ages

    Tom Branna, Editorial Director||November 6, 2012
    Happi's Anti-Aging Conference & Tabletop Exhibition attracted nearly 300 industry executives who heard from leading dermatologists, regulators and analysts.

  • PR for Preservatives?

    PR for Preservatives?

    Tom Branna, Editorial Director||April 30, 2012
    Preservative systems work as well as ever, but erroneous media reports and skittish regulators having suppliers scrambling.

  • Conventional vs. Natural Preservatives

    Conventional vs. Natural Preservatives

    Beth Ann Browne u2013 Dow Microbial Control,Phil Geis u2013 AdvancedTesting Laboratories, Tony Rook u2013 The Sherwin-Williams Company||April 30, 2012
    Green aspirations must be tempered with practical realities—an environmentally preferable product is not a success if the formulation falls apart or is overrun with potentially pathogenic microorganisms due to the lack of an effective preservative.

  • The Latest Word On Cosmetic Science

    The Latest Word On Cosmetic Science

    Tom Branna and Navin Geria, Editorial Director and Contributing Editor||January 10, 2012
    The Society of Cosmetic Chemists' annual meeting in New York attracted more than 1000 industry executives from around the world.

  • A Winning Combination

    A Winning Combination

    Tom Branna, Editorial Director||January 10, 2012
    Lonza's $1.2 billion acquisition of Arch Chemicals creates a global leader in the $10 billion microbial control segment.

  • A Meeting of the Minds

    Melissa Meisel, Associate Editor||December 1, 2011
    The Personal Care Product Council's Science Symposium featured the latest news on microbiology, quality assurance, safety and environmental issues.

  • The Many Shades of Green

    Darrin Duber-Smith, MS, MBA, Contributing Writer and Gregory Black, PhD, Contributing Writer||September 15, 2011
    Greening your business may be easier than you think…but how green? Well, that’s another story.

  • Breakthroughs For Break Outs?

    Breakthroughs For Break Outs?

    Tom Branna, Editorial Director||July 7, 2011
    Not to mention wrinkles and age spots. The mapping of the human genome is creating new opportunities for cosmetic chemists to create effective formulas for a variety of personal care problems.

  • A Green Light for Naturals

    A Green Light for Naturals

    Melissa Meisel, Associate Editor||June 15, 2011
    Sustainable, naturally sourced ingredients are here to stay, according to suppliers.

  • A Matter of Self-Preservation

    Tom Branna, Editorial Director||May 3, 2011
    If marketers think that they can rework formulations and remove tried-and-true preservation systems, they face the prospect of contamination and, ultimately, backlash from consumers and health authorities.

  • Microbiological Quality Of Consumer Products

    Microbiological Quality Of Consumer Products

    May 3, 2011
    The Consumer Specialty Products Association surveys the practices used to ensure microbiological quality of household and institutional products by focusing on raw material controls, finished product quality and process hygiene.

  • Suppliers Remain Optimistic

    Tom Branna, Editorial Director||March 4, 2011
    Two years into the U.S. recovery, raw material suppliers to the global laundry and household care industry remain optimistic about growth opportunities.

  • Good Chemistry

    Good Chemistry

    January 10, 2011
    The Society of Cosmetic Chemists' annual meeting included sessions on hair styling, sun protection and genomics. Yash Kamath received the Maison G. deNavarre Medal, the Society's highest honor.