Consumer’s Guide to Buying Oil of Oregano

If you’re buying Oil of Oregano, do you choose capsules or liquid?

Since this plant oil is a natural extract produced from the leaves, you’ll want to ensure the product you buy is highly-purified and is safe to use.

If you’re buying Oil of Oregano, it’s suggested you look for the FOUR following factors::

  1. What is the Amount of Active Ingredients?
  2. What is the Plant Source?
  3. What is the Purity and Quality?
  4. What form do you want: Liquids or Capsules?



1. How Much Active Ingredients Are You Getting?


buying oil of oreganoNumerous research studies have shown that the health benefits of oregano oil ingredients are due to a number of active compounds.

Two of the main active ingredients are called Carvacrol and Thymol. Research has shown that the higher the carvacrol concentration, the stronger its anti-microbial effects.

If you’re want maximum antiseptic action, you should choose products that have a higher carvacrol concentration. Many oregano oil products can have carvacrol percentages ranging from 50% to over 85%. The oils with higher percentages of carvacrol will generally cost more than weaker solutions.

Some manufacturers will show the percentage of carvacrol or thymol on the bottle ingredient label. You should try to avoid buying products that don’t provide this information because you won’t know the overall strength of the oil.

Some oregano oil producers claim that the thymol level should be as low as possible. However, holistic health care practitioners tend to disagree with this because thymol has also been shown to have anti-bacterial and anti-fungal activity.


2. Plant Sources for Oregano Supplements

oregano plant

Oregano Plant

The oregano oil is extracted from the flowers and leaves of the oregano plant and the most effective method is through steam distillation.

Buying Oil of Oregano that only uses organically-grown plants will reduce your exposure to pesticides or chemicals.

Products that come with a ‘Satisfaction Guarantee’ backed by the manufacturer is a good sign the producer stands behind their product.

The majority of high quality oregano oils will only use plants that are:

  • Grown wild on native soils

  • Handpicked

  • Pesticide and Herbicide-free

  • Are ecologically-conscious

  • Has conservation programs in place


3. What about Purity and Quality?

Generally speaking, the more pure an Oil of Oregano is, the better the anti-microbial effects should be. 

You can find oregano oils that use only organically-grown oregano flowers and adhere to Good Manufacturing Practices (GMP).

GMP is a set of regulations that companies follow when producing drugs, medical devices, and Active Pharmaceutical Ingredients (APIs). Many of the oils made by companies that use GMP facilities generally produce high quality oils with high carvacrol concentrations.

Remember that not all manufacturers follow these practices. There are many high quality oils that are not GMP-certified so you still need to research your products.


If you’re buying Oil of Oregano based on purity and quality, you should look for the following factors:

  • Are the oils GMP-certified?

  • Is it additive-free?

  • Steam-distilled oils are higher purity

  • Free of solvents

  • Non-irradiated

  • 100% natural

  • Unprocessed and raw


4. Buying Oil of Oregano Capsule or Liquids

Oregano oils are available in capsules and liquid form.

The liquid form is the most popular because this was how the oil was traditionally used. However, you’ll find there are a few companies that sell the oils packaged in capsules.

Here’s more detailed information on these two forms:


  • Most capsules are made of gelatin. The gelatin can be made from animal sources or plant sources.

  • The capsules come in a variety of dosages, from 25 mg. to over 450 mg. You can get them mixed with other ‘carrier’ products such as olive oil, flaxseed oil and lecithin. The capsules are usually sold in quantities of 30, 60, and 90 capsules per bottle.

  • *Prices for capsules can range from $10 – $30 depending on the potency and how many capsules per bottle.

  • NOW Foods Enteric Oregano Oils is one of the most popular oregano supplements in capsule form.

Oregano Liquids:

  • You can get oregano oils in liquid form. The oils may be mixed with a ‘carrier’ oil such as: olive oils, grape seed oils, peppermint oils, capsicum oils and medium chain triglyceride (MCT) oils

  • *Prices for liquids can range from $20 – $50 per ounce depending on the brand name and quantity.

  • Remember that the lowest price doesn’t guarantee you’re getting the best product. I’ve found some of the higher-priced oils are of better quality and purity, but you may find a some products that offer moderately high carvacrol percentages at a decent price.

Whichever type of product you choose, remember to compare different brands, prices and purity levels before purchasing. These simple steps will help you get the best oregano oils for you and your family.



List of The Best Oil of Oregano Products:

So which are the best oregano oil supplements?

Using the above guidelines, here are a few products that have high concentrations of carvacrol and made from hand-picked, steam-distilled oregano leaves.

North American Herb Spice Oreganol

  • This particular product is currently one of’s most popular supplements with a high number of positive customer reviews
  • It claims to use hand-picked Mediterranean oregano leaves and steam-distillation to extract the oil.

  • This company offers a large selection of oregano oils in soft gels, liquid oils and creams. Some of their products come blended with olive oils, cumin, sage and other herbal preparations.

  • Oregano P73 is their one of their flagship products and you can get it in different strengths.

  • At press time, the price ranges from $45 for 1 ounce to over $70 for 1 ounce Extra Strength Oreganol.

Natural Factors Oil of Oregano

  • This is a product is reported to be a hand-picked, certified organic oregano oil.

  • Natural Factors claims to guarantee a minimum 80% carvacrol content and this formula comes mixed with virgin olive oil in a 4:1 ratio.

  • Suggested Retail Prices average $18 to 25 for a 1 oz. bottle

Source Naturals Wellness Oil of Oregano

  • Made from wild-crafted oregano leaves native to the Mediterranean region.

  • Provides a standardized 70% concentration of carvacrol.

  • This product also has a high number of positive reviews from online customers.

Enerex Oil of Oregano

  • Enerex is a Canadian company that offers a hand-crafted and steam extracted oregano oils.

  • This product has one of the strongest carvacrol concentrations with minimum levels of 80% carvacrol per bottle.

  • It comes in blended oils of 40% oregano and 60% virgin olive oils.

  • Prices start at $25 for 30 ml bottle.

  • Comes packaged in a dark glass bottle and has a handy eye dropper for precise dosages.

  • Readily available in Canada, however, you may have difficulty with availability in the USA or other countries.


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