I use 20% neem, but if you despise the smell, maybe start with 10%. Mint in the mask sounds like a great idea!My son and one of my exchange students from a long time ago have bad eczema and I have wanted to make a soap for both of them but haven't had time lately because this is major gardening time for us, flower, veggie & herbs so I have been absent from the forum. It's so hot and muggy out today that I am treating myself to an afternoon of cool air! What percentage of Neem oil would you suggest I use per pound of oils? I am going to make a few small batches of soap to find what has the best feel to both of them, I always use goat milk so one problem is solved BUT I HATE the smell of Neem oil, I ask my son to spray our fruit trees because we use it and I start gagging the minute I smell it! I will put mint inside my mask when I use it in soap, hopefully it will help!