Preservatives

Weekend Wonderings: Why are you using willow bark in a rinse off product? Do we need preservatives in our cleaning products? Why doesn’t handmade soap make a good shampoo?

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In this post, Experiments in the workshop: A 3-in-1 that might be good for swimmers, Marg asks: Can you explain your thinking on adding white willow bark extract to your 3 in 1? I love that product, and use it in my aftershave lotion to soothe tiny nicks or scrapes, but not sure if its...

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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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Weekday Wonderings: More comments! Measuring small amounts and the anti-bacterial properties of oils

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In this post, Question: Doubling, tripling, and dodecahexing!, Stephanie asks: I have chosen to weigh everything as I think it’s the best way to do it according to all my research however, for ingredients that I have to suck out of a small bottle, can I use my syringe and assume that 1ml is equal to...

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Weekday Wonderings: Should we reduce the preservatives in a product if they’re already in the ingredient?

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Hey everyone! I’m furiously working on the last pages of the facial products e-book, hence the lack of posts this week. I’m re-making products, taking pictures, adding photos, and generally writing a lot. If you’d like to suggest something, hie thyself to this post – Please share your thoughts about the facial products e-book –...

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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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