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Teach Soap • View topic - Preservatives

Teach Soap

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 Post subject: Preservatives
PostPosted: Thu May 16, 2013 2:55 pm 
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Location: Woden, Iowa
How do you figure out how much preservative to use? Is there a formula? I read on one website to use 1 ml for every 10ml of liquid in your product. Seeing as how A LOT of the info I have come across is wrong, I thought I would ask here

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 Post subject: Re: Preservatives
PostPosted: Thu May 16, 2013 3:41 pm 
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You need to go by % of the total formula. Preservatives are used at different rates and different temperatures. There is no one size fits all. 1 ml for 10 ml of product is not always true.

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 Post subject: Re: Preservatives
PostPosted: Fri May 17, 2013 10:44 am 

Joined: Thu May 16, 2013 2:57 pm
Posts: 238
Soapbuddy is absolutely right!

The preservative you use should come with guidelines in the form of a percentage, as well as mixing instructions and temperature instructions. Check with you supplier if the bottle or package doesn't give this info.


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 Post subject: Re: Preservatives
PostPosted: Fri May 17, 2013 11:38 am 
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Location: Woden, Iowa
Ok so the preservative I am looking at using says to use .1% to .5%. How do I determine which percentage is the one I should use?

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 Post subject: Re: Preservatives
PostPosted: Fri May 17, 2013 12:04 pm 
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 Post subject: Re: Preservatives
PostPosted: Fri May 17, 2013 12:11 pm 
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Location: Woden, Iowa
The products I have that will need a preservative are body mists, facial masks, and lotions

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 Post subject: Re: Preservatives
PostPosted: Fri May 17, 2013 2:36 pm 
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Liquid Germall Plus can be use for masks and lotions, but not for sprays.
Optiphen might work for masks and sprays, but it might make your lotion formula curdle.
Phenonip is oil soluble only, so that might work for lotions, but not for sprays or masks.

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 Post subject: Re: Preservatives
PostPosted: Sat May 18, 2013 8:56 am 
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 Post subject: Re: Preservatives
PostPosted: Sat May 18, 2013 10:22 am 
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 Post subject: Re: Preservatives
PostPosted: Sat May 18, 2013 2:40 pm 
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Ah ha! I was missing the inside information! ;) Thanks Irena!

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