Im looking to make a soap to use on my horse. Looking for any tips or recipes that you might have concerning horse soap. So far my research has some conflicting info on EO, all have said Cedarwood, Lavendar, and Geranium is ok and good for bugs, not sure which I’ll use yet, just those seem to be ok to use. Im thinking adding some tea tree oil also. I appreciate any thoughts or info on this. Thanks in advance.