I have a ton of crazy allergies, which is one of the reasons I'm learning to make soap. I would like to be able to have nice, handmade soaps, but when I look at the ingredients in most handmade soaps, there's almost always something I either know I'm allergic or sensitive to, or something I suspect will trigger a reaction. Also, I have an exceptional sense of smell, so many products other people think are fantastic smell like chemical perfume bombs to me. It's a real problem, and I've been stuck using Dove Sensitive bars for years because every other thing gives me a rash. :-(
But now that I'm getting into handmade soaps, I'm finding that there are a lot of natural ingredients that I can use after all! For example, I bought a few bars from Ophelia's Soapery (omg so pretty!) and so far, so good. Since I have a latex family allergy and a latex sensitivity, I had thought shea butter would be out of the question. There are lotions and body butters I've tried that were shea heavy, and WOW the rash! But apparently it's okay if it's in small quantities in a bar of soap. Go figure!
Another of my allergies is to metals, though I haven't been tested thoroughly enough to know exactly which metals trigger a reaction. Doctors won't give explicit, "Yes, this item will be okay," because they can't make themselves responsible for random items we use at home, so it's not like I can ask, "Hey, is this mica safe for me?" They will generally say, "I don't know, but it's probably a bad idea," just to be safe. So far the micas I've experienced in handmade soaps have been okay, but whenever I pick up a new bar I have to anticipate the possibility of a reaction.
I'm so, SO very thankful that nuts are not among my allergens. I don't know how people with nut allergies, or parents with kids with nut allergies, navigate our world safely.
But overall, I'm starting to wonder if the saponification process kills off enough of the allergen part of plant materials that it isn't an issue with the soaping oils? And are fragrance oils for soaping more likely to be made in a hypoallergenic fashion? Because Ophelia's Soapery uses plenty of fragrance too, and I haven't had a problem. It's been a bit of a shock to me, because my allergies have gotten worse over the years. Most intense, more varied, more unpredictable, and more dangerous. There are foods that will trigger anaphylaxis, even. (So I will not be using or buying anything with mango or melons, no matter how processed. No matter what mango butter might do in a soap, it's just not worth the risk.)
Interestingly, it seems that not all lavender is the same. I'm also asthmatic, and there are lavender-laden bath bombs that have made me wheezy. However, I've recently bought a small bottle of lavender essential oil to test on myself, and so far there's been no issue. It's weird as heck. So now I wonder whether it was the chamomile or frankincense that made me wheeze!