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Is there a safer alternative to Methylisothiazolinone?


Methylisothiazolinone is a widely-used preservative in many personal care products, specifically many hair care products. It has been associated with lung toxicity, allergic reactions and possible neurotoxicity. The European Union ban Methylisothiazolinone as preservatives in leave-on cosmetic products in 2016. However, it is not banned in the United States yet. How do we get the US to eliminate the use of Methylisothiazolinone in personal care products, specifically hair care? Is there a safer alternative manufacturers can use instead of this harmful preservative?

Beauty Industry
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Melissa Matthews
77 months ago

6 answers


Melissa, your question as pertains to "how do we get the US to eliminate the use of Methylisothiazolinone in personal care products, specifically hair care?" is probably best addressed by a regulatory expert. To your question about safer alternatives, here's some options to consider:

If you would like to research your question beyond this, a more comprehensive technology search may be appropriate (FYI, it's what my company does).

Michael Fruhling
77 months ago

Some of other preservatives used in cosmetics products are

  • Imidazolidinyl urea
  • Diazolidinyl urea
  • DMDM hydantoin
  • Phenoxyethanol
  • Methyl and ethyl parabens mixture (1:2)
  • Phenethyl alcohol, caprylyl glycol mixture
  • Phenoxyethanol, Ethylhexylglycerin mixture
  • INCI: 1,2-Hexanediol
  • Caprylyl Glycol
  • Phenylpr­opanol
  • and, Combinations

Selecting an appropriate preservative depends on

  • Formulation compatibility
  • Type of cosmetics
  • Region of Application area on body
  • Regulations and market
  • Cost

Samares B
77 months ago

cosmetic preservative blends that are free from Methylisothiazolinone (MI) and fully compliant with the European Cosmetics Regulation.
Recommended MI alternative cosmetic preservatives:

You cn get the tech data on the above from on-line search

Pal Arjunan
77 months ago

Actually we have had great success with Bio-Vert, which is a sugar based preservative. Utilizing phenoyehtanol and Bio-Vert in tandem we have been quite successful as long as the end formulation does not get to acidic.

Tommy Dionisio
77 months ago

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gemma lyly
23 days ago

Organize a campaign to raise awareness about the potential health risks associated with Methylisothiazolinone among consumers, health organizations, and policymakers papa's pizzeria.

Lycus Melanthios
2 days ago

Have some input?