Essential oils are temperamental to work under any circumstance. While a natural essential oil scent blend may change a bit when combined with virgin oils in a cream, these blends are especially unpredictable when making cold processed natural soap.
Why doesn't my new soap bar smell the same as the last one?
After all my years of soapmaking in never ceases to amaze me just how much the actual soapmaking process changes the scent of an essential oil blend.