SAP for Vitamin e-oil?

[Kosmerta]

I was making soap 2 days ago and accidentally useded vitamin e oil to mix with my micas. I meant to add sweet almond, but the bottles looked similar and I didn't realize the vitamin e-oil was even in my soap room. After adding 2 TBS I realized my "sweet almond" oil was much thicker than usual and checked the bottle and that is when I realized my mistake. I've seen e-oil in Brambleberry recipes so I knew it was safe to soap with and decided to use this instead of re-mixing my oils.

Now I am trying to find a SAP value for e oil to calculate any changes this batch may have. I am having no luck finding SAP, does e-oil even have a SAP value? Additionally does anyone know if/how this small amount of e oil may impact my batch?

 

[atiz]

I don't think it would impact your batch -- other than having wasted that nice Vit E oil .
I always thought of Vit E kind of like an essential oil that does not saponify. But I'm not sure how the chemistry works.

 

[Arimara]

That vitamin e oil would have been put to better use in a butter whip, an oil blend for you body or a lotion. In soap, I can't imagine that surviving saponification.

 

[Mita78]

That vitamin e oil would have been put to better use in a butter whip, an oil blend for you body or a lotion. In soap, I can't imagine that surviving saponification.

I know it is used as an a anti-rancidity for oils, you could say as a preservative . You might get higher shelf life

 

[shunt2011]

I know it is used as an a anti-rancidity for oils, you could say as a preservative . You might get higher shelf life

Vitamin E is not a preservative and not the best choice for an antioxidant. ROE is the best bet for that purpose.

 

[Mita78]

“Vitamin E is often added (in the form of tocopherol) to a personal care product to help slow down oxidation. Oxidation is a process where chemicals start to fall apart because the energy or conditions brought about due to light, heat or moisture exposure. Oxidation is a big problem for vegetable oils, especially the nice ones with lots of Omega fatty acids in their make-up and so it is important that we try to hold it back. Oxidative breakdown leaves the oil smelling rancid and with a deeper colour. The oil may become more irritating and less cosmetically appealing.

• We shouldn’t add more than 0.1% or so Vitamin E to our products as adding too much turns it into a pro-oxidant”

Vitamin E is not a preservative and not the best choice for an antioxidant. ROE is the best bet for that purpose.

Vitamin E is not a preservative and not the best choice for an antioxidant. ROE is the best bet for that purpose.

 

[shunt2011]

And again, I use ROE not Vitamin E. I add ROE to all my oils when I open them. I use vitamin E for the Vitamin E benefits in products other than soap. You are certainly free to use it how you choose. In my experience Vitamin E does not stop oils from going rancid.

 

[Megan]

Vitamin e isn't a fat, so it wouldn't saponify. It's called an oil because it is a fat soluble vitamin which is dissolved in oil...mine from WSP is 50% sunflower oil, so you could look at the SDS for your specific vitamin e and see what oil is mixed with it and at what percentage to figure the SAP for that.

 

[Arimara]

You should keep in mind that while using vitamin e oil in lotions, creams or non-aqueous whips, soaps are a different animal in that there is a that chemical change occuring that does not happen in lotion making. In soap, if that vitamin is not destroyed in some way, it is most definitely changed in some way.

 

[DeeAnna]

People tout Vitamin E as a good all-purpose antioxidant. Problem is there are different types and blends of tocopherols, of which Vitamin E is just one. These different types of tocopherols don't all behave the same.

Vitamin E, the human health supplement, is alpha-tocopherol or is converted into alpha-tocopherol in the body. It's very useful for good health, but it's not necessarily the best antioxidant for other purposes.

For example, several studies have found that too much alpha-tocopherol in an oil actually increases the rate of oxidation (an effect called pro-oxidation). High levels of gamma-tocopherol in these studies did not show this pro-oxidant effect.

That means if you add alpha-tocopherol to fat with the hope of preventing oxidation, you can easily make matters worse, not better.

If you really want to use a Vitamin E (alpha-tocopherol) as an antioxidant in stored fats, you have to be able to measure the alpha-tocopherol content to ensure you're adding the right amount to get the results you want. Otherwise, you'd be better off to use gamma-tocopherol.

ROE (rosemary oleoresin extract) has a good track record of preventing oxidation in bulk fats -- as good or better than some synthetic antioxidants such as BHA and BHT. It also doesn't appear to have a strong pro-oxidant effect.

In short, all of these chemicals mentioned are antioxidants ... but they aren't all equally as useful in all situations.

More info:
Kevin Dunn. Scientific Soapmaking. Chapter 19.
https://ods.od.nih.gov/factsheets/VitaminE-HealthProfessional/https://ucdavis.pure.elsevier.com/e...-of-α-and-γ-tocopherols-in-bulk-oils-and-in-ohttps://aocs.onlinelibrary.wiley.com/doi/abs/10.1007/s11746-009-1526-9https://link.springer.com/article/10.1007/s11746-999-0171-7https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfq.12086https://www.tandfonline.com/doi/abs/10.3109/00498259209046624http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/359