I do! One of my recipes got DOS about 2 1/2 months into cure when I first tried the recipe (no vitamin E). The recipe in question was one I liked and I was devastated when I saw the DOS. The mixture contains 20 percent grapeseed oil and 10 percent sunflower oil, the rest of the oils have a shelf life of over a year. I made the recipe again and added 1 1/2 ounces of vitamin E to a 50oz oil base. I held that batch for 8 months with no sign of DOS. It is one of my main recipes I work with now and I haven't had any problems with it since.Dory, do you have any soaps that you made with out the vit e that went DOSsy? Just wondering if the vit e actually helps at all.
Someone on B&B was talking about using it for shaving soap and I brought up the subject of lye - if the vit e is there during saponification, how much of the goodness actually survives?
Thank you so much for the information that you've provided. Can you please tell me how much vitamin E oil to add for 1000 gram oils?? Vitamin E capsules are easily available and cheap in my place.Occasionally I will use small amounts of Vitamin E in a recipe that contains higher amounts of oils that have lower shelf lives. The theory is that because the lower shelf life oils are low in anti-oxidents and the Vitamin E is high in anti -oxidants that the Vitamin E can help to reduce the chance of DOS.
Although I can't say scientifically if it works, I can say that I have not experienced DOS in any soap in which vitamin E was added. I add it to my oils and blend them before adding the lye water.