I can’t really judge the effectiveness of this product because when I used the oil by putting three drops under my tongue it immediately felt like it was burning my mouth and for at least 5-6 days the inside of my mouth and lips were very sore and then numb. I have no doubt that Doctor Martens Oil of Oregano is very effective for most people. I’m sure I’ll find a use for it.
I did call the Clinic and left a message but haven’t yet received a callback.

I love oil of oregano because it helps me get over a cold very quick, especially with sore throat....i take 5 drops under tongue 3 times a day and i can feel the benefit right away.

Great for under my tongue

Been under the weather lately, oil of oregano came to the rescue, a few drops in the mouth, that's all it needed.

Love it! I use it on my toothbrush daily and my teeth have never looked better. I also put a few drops in a cup of warm water for a relaxing drink.