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Tagged: benzyl-alcohol, paraben, shampoo
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benzyl alcohol equivalent to parabens
Posted by andres_mh89 on April 21, 2021 at 5:18 pmHello everyone,
I’m looking forward to use benzyl alcohol as a substitute for methyl and propyl paraben (both 0.1%) in a pet shampoo formulation.
My question is, what would be the equivalent amount of benzyl alcohol for this application?
Many thanks
AndresMicroformulation replied 3 years, 6 months ago 6 Members · 11 Replies -
11 Replies
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Hi,
what else are you using as preservative? What else is in the formula?
EU limit for benzyl alcohol is 1% max.
We can’t really tell you, for example, that 0.78% or 0.48% would be enough. PET would need to be conducted.
If it’s homemade, I would stick to the upper limit, however benzyl alcohol wouldn’t be sufficient as the only preservative. In other words, it’s not a broad spectrum preservative.Hope that helps.
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Hi Paprik,
I forgot to mention, I’m also including 0.1% of KATHON CG. Therefore, what could be a solid estimate of the % for benzyl alcohol to guarantee a shelf life for, let’s say 2 years?
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Do you know of any commercial pet shampoos that are paraben-free? If you look at the ingredients list, you can get a good idea on how they accomplished it.
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With Kathon CG in a shampoo - Sodium benzoate is a much better option than benzyl alcohol or parabens. Kathon CG at 0.1 is top recommend use level. Unless there’s a rationale, think I’d drop that to 0.5-0.6.
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Right - 0.05.-0.06 - thanks!
Suggest 0.25 -0.3% Na Benzoate -
You may want to reconsider Kathon CG (methylchloroisothiazolinone, methylisothiazolinone) in a Pet Shampoo. There are some pending class action suits. It also is beginning to get pushback from the pet market. I would research these issues.
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Microformulation said:You may want to reconsider Kathon CG (methylchloroisothiazolinone, methylisothiazolinone) in a Pet Shampoo. There are some pending class action suits. It also is beginning to get pushback from the pet market. I would research these issues.
Can you elaborate on the lawsuits? This is the most common preseravtive of surfactant based human consumer products (shampoos, hand washes, body washes) in the world.
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Saw one suit for flea and tick shampoo - pyrethroids named as culprit.
Also some stuff about isoxazoline - another heterocyclic but nowhere near an isothiazolinone. https://www.fda.gov/animal-veterinary/animal-health-literacy/fact-sheet-pet-owners-and-veterinarians-about-potential-adverse-events-associated-isoxazoline-fleaany cocnern for a formaldehyde releaser?
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