Question: Can we use lanolin as a substitute? And how do we know how much to use?

In this post, Anonymous asked: Hi Susan. I am wondering if just a bit of lanolin oil would be okay to add to the drier feeling after shave lotion for its healing properties…what is the minimum percentage to add to be effective? Which leads me to an overall question – is there a rule of thumb for knowing the...

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Heating, holding, freezing, and thawing our ingredients!

The temperature of our ingredients is a hot topic these days, so let’s take a look at a few questions I’ve been posed in the last few weeks… If we heat carrier oils, will they go rancid quicker? Are we destroying the goodness in them? I answered this question last year in this post, but...

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Question: Mixing oils and water

In the most recent what do you want to see? post, Ben writes: Hi Susan! I thought I’d ask you a simple “I want to know” request. I was wondering about the mixability of jojoba oil. Does it mix well with water, or does it need an emulsifier? What about mixing with oils? Also, beeswax for the same...

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Question: How do anti-oxidants affect the shelf life of our products?

p, as always, stimulates my brain with this comment (found in this post): How does adding 1% vitamin e or rosemary oleoresin affect the shelf life of that ingredient (which is usually an oil)? And how does refrigeration affect the shelf life of our oils? For example, if I buy rosehip seed oil (a 6 month shelf...

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Question: Heating and holding our ingredients

Papi asked this question:  I have a question, if we heat oils (like grapeseed) at 70˚C won’t it get rancid? And maybe we ruin some of its properties too (like evening primrose oil) or the 70˚C is the safe temperature?  This is a good question because the last thing we want is to have rancid...

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