Q&A: Adding vitamin E to oils when we receive them to slow down rancidity?

In this month’s Q&A, GiannaFromMN asked, You say the only stupid question is one that goes unasked, so here we go: I’ve heard it mentioned in a few different places now that we should add tocopherols to our ingredient oils when we get them from the suppliers, to make their shelf lives as long as possible....

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Weekend Wonderings: Adding Vitamin C to a product

In this post, A few thoughts for a lazy Saturday, Fuchia asks: A bit off topic but I’m curious about making a Vitamin C cream. I have a face cream recipe I make now and love (it does not contain Vitamin C but uses Optiphen Plus as a preservative) and keep reading online that you can...

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Weekday Wonderings: More comments! Can we add anti-oxidants to anhydrous products? Rocky Mountain Soap’s preservatives?

In this post, Lotion bars: Tweaking the waxes, Tracy asks: I was wondering if it would be okay to add an antioxidant like ROE or Vitamin E T-50 to extend the life of the oils? If so, does it matter which one is used? Yes, you can add anti-oxidants to any oil soluble product to extend...

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Vitamin E is NOT a preservative and you don’t have to add a preservative to an anhydrous product (updated)

Vitamin E is not a preservative. It is an anti-oxidant. An anti-oxidant will slow down the rancidity of your oils. A preservative prevents the contamination of your product by things like bacteria, yeast, or mold. Vitamin E will not prevent contamination of your products, but it will retard the rancidity of the oils in your...

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Weekend Wonderings: Why is Vitamin E sold in clear bottles if it’s light sensitive?

In this post on anti-oxidants, Bridget asks: I’ve read that many antioxidants are light sensitive. They will quickly become inactivated with exposure to light. I know vitamin C is like this. That’s why C serums have to be packaged in opaque or amber bottles. I have read that vitamin E is also light sensitive. So...

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