I use Young Living essential oils personally, with my animals and in my practice. I use this brand because of the quality and research that has gone into every oil and blend.
The single oils and blends all have energy frequencies, just like everything else does. When I am connected to an animal, I send the oils energetically if I’m doing a remote session. This allows the animal to receive more oils/blends without overwhelming their sense of smell. Animals respond quickly and in obvious ways. During a session, they will yawn, lick, stretch, chew, look around, sniff the air, turn away or get up and leave, etc. The reaction depends if they like the oil/blend or not. During an in person session, I use only a couple of oils/blends depending on their responses. I love seeing their responses!