antioxidants

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

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A row of different oils in plastic bottles. They have different colours ranging from light yellow to dark yellow to clear white and light green.

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

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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?

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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)

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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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Rancidity in our products: The shelf life of our oils and anhydrous products (with formula)

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Why did I say yesterday that we don’t encounter rancidity as much as we encounter other things like contamination? Because we really shouldn’t be making batches so large that they outlive the shelf life of the product. So let’s say you want to make this manicure balm, how long is the shelf life? LANOLIN &...

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