Teach Soap

Hi, I am new to this forum, and I have a question.
Has anyone used rosehips oil in CP soap? I love the properties of RH oil, and want to incorporate it into a facial bar. any recomendations? thoughts, or advice? thanks.
crsc.

Welcome!
It's a fairly fragile oil with a short shelf life. I would save it for lotions or creams instead. Soap is a wash off product. You won't get the same properties as if you used it in a leave-on product. For a gentle soap, I would do a Castile made with goat's milk.

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Irena
Closed minds are like faulty parachutes; they refuse to open.

You're welcome.

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Irena
Closed minds are like faulty parachutes; they refuse to open.

I on the other hand use rosehip seed oil in my luxury facial bars and instuct my customers to use the lather as a facial mask so the skin has time to absorb the ingredients. I also use this oil in a facial serum that stays on the skin. I feel it's what an individual is comfortable with, but i also believe that you do get some benifit from ingredients in soap, if we didn't no one would ever waste any other oils or extracts or infusions or teas or essential oils ect in soap making. JMOP I read that the shelf life is 12 to 18 months ......is that considered a short shelf life?

Oils in soap have saponified so their structure has changed. There is a chance that some of the oil will end up as your superfat, but lye does not discriminate, so there is no way to know if any particular oil or butter ended up not saponified. It does add a nice label appeal. Skin is a wonderful organ that protects us from some harmful things. If it didn't, the oil that we apply to our skin would make us fat and the water in our bath tubs would drown us. Unless the molecular structure is small enough to penetrate the skin, all it will do is to soften the stratum corneum, the outermost layer of the skin.

Leaving the soap on the skin for longer period of time, will not make any saponified oils absorb any better. Lots of ingredients that we use as soapers are really label appeal. Tea, for example has tannic acid. By the time the soap is cured, the only benefit that the tea will add is color. Lye will eat up the rest.

Rose hip oil shelf life is 6-12 months. However we don't know how long it sat on a vendor's shelf before it got sold. It's possible the oil is already on it's last journey and has started to oxidize before you even bought it.

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Irena
Closed minds are like faulty parachutes; they refuse to open.

yeah your right about how long its been sitting on the suppliers shelf, how does anyone know ? I think that is the appeal of HP soap to me in that ....if I want to add a luxury item such as rosehip seed oil or shea oil and I'm adding it after the cook with a good lye discount am I wrong in thinking that there is some benifit there? The lye can no longer take away properties if it is neutralized,can it?

The way Dr. Dunn (who has a scientific soapmaking book) explained, that if you add any oil or butter after the cook, there is a small % that some of the soap molecules will still switch and take up the extra oil or butter added and give up any oil or butter they originally took in. He says that even after the cook (and the soap no longer zaps) a small amount of the molecules of an oil or butter can still transpose. I have never seen it proved or disproved, but he seems to know what he's talking about.

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Irena
Closed minds are like faulty parachutes; they refuse to open.