this is an excellent, very potent, 100%, undiluted brand of peppermint oil!... and, though P. Oil has a plethora of uses (like 1001+! 🙃 ), we have found it most helpful to aid in the penetration of topical skin therapies or treatments... we have treated occasional break-outs of a mild, life-long, no-cure, just-treat psoriasis or dermatitis with Rx Desoximetasone, but, recently, we discovered that P.Oil and Oil of Oregano (OofO) work very effectively, as well…due to the wonderful skin penetrating effects of P.Oil, when we add it to the Rx or to the OofO, it is much more effective and we are able to use much less of the Rx and OofO, with the same or better results!; Majestic Pure Oregano Oil, 4 fl oz - Natural, Therapeutic Grade Oregano Essential oil…OofO is an effective, natural cure with the P. Oil to aid in penetration and has been a terrific non-Rx alternative for managing the occasional psoriasis/dermatitis, as well as toenail fungi and other skin conditions etc. :-)◻︎ NOTE: as Oils of Peppermint & Oregano are very potent oils, they must be diluted… we have found the best way to do so and utilize them, as a skin elixir, is to mix them in with a carrier oil. good carrier oils are coconut, olive, and jojoba... we choose coconut oil for it's additional skin benefits and here is the recipe; • mix 2-3 tablespoons of (your choice) carrier oil with 10-15 drops of Oregano Oil and 10-15 drops of P.Oil.apply it, as you would apply any topical treatment or lotion, to the affected area and within a week, you should see the results……our results have been outstanding! though, again, it does not work quite as fast as an Rx, such as Desoximetasone, it is natural, non-pharmaceutical, and our experience is that it is very effective in treating all the toenail fungus, psoriasis, dermatitis, eczema, etc. skin conditions, that always seem to require a lifelong Rx! :-)as it aids so well in skin penetration, P. Oil is, generally, very effective when added to about any topical treatment or pain medication, such as Penetrex, which is a very effective topical pain treatment; Penetrex Pain Relief Therapy [2 Oz] :: Breakthrough (Pat. Pend.) for Arthritis, Back Pain, Tennis Elbow, Fibromyalgia, Sciatica, Plantar Fasciitis, Carpal Tunnel, Sore Muscles, Joints & Chronic Pain ... and, though Penetrex has some P. Oil in it, the product is much more effective and acts much quicker with this 100%, undiluted P. Oil added very sparingly to it!; just a couple drops of Pepp. Oil per ~ a half teaspoon of Penetrex is all that is needed to accelerate penetration and efficacy.generally, anytime you need better efficacy with skin meds or therapies, Peppermint Oil is very effective as a skin penetration aid… now!, for the newly discovered benefit of P. Oil; • RATS!!! ... yes, rats!though, we are now RAT-free, we had quite an outdoor infestation in our community...... during the war, we discovered that rats are none too fond of Peppermint Oil, so we placed it in all the areas of the yard considered absolutely "off-limits" to rats, using other distant areas for elimination (traps & bait) ☠️…and!, the P. Oil was incredibly and immediately effective! they began moving only in distant areas of our yard, where we had the traps and bait boxes and remained entirely clear of the areas where we distributed the P. Oil! ☐ note: P. Oil evaporates quickly outside and should be freshened daily or as often as possible, and protect it from rain, as most of the oil will be washed away.so, 👍 👍 to Peppermint Oil! ... it is just amazing for so many things and was immediately effective as a "rat deterrent"with less ado, we are very pleased,Thank you. :-)