I've been searching the internet and really haven't found much conclusive evidence so I thought I'd ask her to see what other soap makers have observed. In terms of soap making, adding in special additives to soap, do you find it makes a real difference to skin? I see high end soap producers charging $15/bar for mushroom or seaweed soap that's supposed to clarify and detoxify your skin, and I see other low end soap makers touting that their soap has medicinal or healing properties. Now I've made a lot of different recipes and added in various additives from coffee, clays, charcoal, calendula, honey, and the like and while I have had customers say that some of my soaps have helped their eczema or their dry skin, I'm not entirely sure that it's so much from the additives as it is that I have a very good soap base and superfat. I'm not against making mushroom or seaweed soaps but I feel like with soap there's little benefit to adding high end additives because it's just washing away. It's not like a mask or lotion that sits on your skin. Has anyone seen any significant evidence to support using additives in your soap for medicinal or health reasons on skin issues?