OregaULTRA – Wild Oregano Oil Drops, 30 ml 84% naturally occurring carvacrol in the oregano oil • organic extra virgin olive oil • food supplement

Carvacrol & thymol: what 84% means

OregaULTRA’s carvacrol content comes from the wild mountain oregano selected for its oil. NAHS does not add synthetic carvacrol. When comparing products, check where the carvacrol comes from and what else is in the bottle, as well as the percentage on the label.

• Carvacrol and thymol occur naturally in oregano oil. NAHS selects oregano with a high carvacrol content and a low thymol content.
• Carvacrol is only part of the picture. The balance of its other compounds varies with the plant species, growing location and harvest.

How can you tell whether carvacrol is natural?

• There is more to oregano oil than carvacrol. A 2024 analysis of four commercial oregano oils identified 119 compounds in total. Their number and relative amounts differed between samples. The study examined other commercial oils, not OregaULTRA.
• A percentage alone does not reveal origin. Carvacrol can be isolated from plants or made synthetically. Adding isolated carvacrol can increase its percentage without preserving the oil’s original balance of other compounds. A high percentage alone, however, does not prove that synthetic carvacrol has been added.
• Different tests answer different questions. Gas chromatography–mass spectrometry (GC–MS) identifies the constituents of an oil and their relative amounts. Isotope analysis can help distinguish natural from synthetic origins: a 2006 study found differences in hydrogen isotope ratios between the natural and synthetic samples tested. This research demonstrates the method; it did not test OregaULTRA.

What does the carvacrol percentage tell you about the dose?

• A percentage in the essential oil does not tell you the amount in a dose. A daily dose of 2 drops contains 50 mg of the complete three-oil blend. The label does not specify how much of that blend is oregano oil, so the 50 mg figure cannot be used to calculate the carvacrol content. To compare products, you also need to consider the carrier oils, the concentration of the finished drops and the recommended daily dose.

Wild oregano from the Turkish mountains

OregaULTRA’s oregano comes from remote mountain areas of Turkey. NAHS looks for wild oregano with naturally high carvacrol levels, drawing on its knowledge of the plants and their growing conditions.

• Hand-picked by local harvesters. NAHS works with long-standing partners and village communities who know the local plants and when to harvest them.
• Allowing wild plants to regenerate. NAHS’s sourcing commitments include protecting wild habitats and avoiding excessive harvesting, so the plants can regrow.
• Steam distillation extracts the aromatic oil. Steam releases the plant’s volatile aromatic compounds; after cooling, the oil separates from the water. The resulting essential oil therefore differs from dried oregano or a herbal infusion.
• From local harvesters to in-house manufacturing. NAHS sources herbs through long-standing partners and develops and manufactures the finished products itself. That direct relationship makes it possible to trace the herbs from harvest through processing.

Why OregaULTRA uses olive oil

OregaULTRA’s carrier oils lower the concentration of the oregano essential oil. The ratio of oregano, olive and black seed oils determines the concentration of the finished blend, and how much oregano oil is in each dose. This is why the recommended dose applies to the finished drops, rather than to the essential oil on its own.

Organic extra virgin olive oil acts as both a carrier and a stabiliser. It is produced without refining, retaining its naturally occurring phenolic compounds and tocopherols. Black seed oil adds its own distinctly spicy flavour.

Take the drops with food or add them to water or juice. The oil will not dissolve in the drink and may remain on the surface even after stirring. Expect a pronounced herbal taste.

Essential oil, food supplement or kitchen herb?

• OregaULTRA is a food supplement with carrier oils. It is prepared for oral use at the dose shown on its label. Other products sold as “oregano oil” may have different uses and concentrations; their instructions are not interchangeable.
• Geusi Vounou organic oregano essential oil is an undiluted oil from a family farm in Greece. Essential oils are used as aromatic ingredients in aromatherapy, cosmetics and household products; follow the individual product’s directions for use and dilution. Do not swallow undiluted oregano essential oil or put it in your mouth: it can severely irritate mucous membranes and is not a substitute for these supplement drops.
• For the kitchen, choose dried oregano. Use organic dried Greek oregano with tomatoes, feta, roast potatoes or marinades. The Geusi Vounou collection also includes other herbs, seasonings and Greek specialities.

Why use olive oil or MCT oil as a carrier?

• Extra virgin olive oil is obtained by mechanical or other physical methods, without refining. Alongside predominantly monounsaturated fats, it retains naturally occurring phenolic compounds and tocopherols. It has its own flavour and aroma, and its natural antioxidants contribute to oxidative stability.
• MCT oil consists mainly of triglycerides containing medium-chain saturated fatty acids, usually caprylic and capric acids. Its neutral taste, fluid texture and resistance to oxidation are useful in manufacturing, as is its consistent composition. If you want a neutral-tasting oil for coffee or smoothies, browse our MCT oils to compare their sources and C8/C10 composition.
• OregaULTRA uses organic extra virgin olive oil. Alongside its fats, this unrefined oil retains naturally occurring phenolic compounds and tocopherols. The choice of carrier does not reveal how much oregano essential oil is in the drops, so check the ingredients and recommended dose too.
• For salads, vegetables and finishing dishes, explore our extra virgin olive oils, including high-polyphenol options. Compare their origin, olive varieties and flavour to find one for your kitchen.

How does OregaULTRA differ from Super Strength?

• Super Strength drops have a higher proportion of oregano oil to olive oil than Original Strength. OregaULTRA uses a different oregano source with a naturally occurring carvacrol content of 84%. A higher proportion of oregano oil in the blend is different from a higher carvacrol content in the oregano itself. Neither figure replaces the product’s dosing instructions.

If you prefer a gentler taste

Stirring the drops into water does not dissolve the oil. They may remain on the surface, and adding them to a drink does not remove their strong taste.

• Original Strength softgels contain P73 and organic extra virgin olive oil in a tapioca shell. You swallow the softgel whole with food, without tasting the oil on your tongue.
• H2Orega contains micellised oregano oil, which disperses in water. Once diluted, we find it gently herbal and spicy, with less of the sharpness of oil drops taken under the tongue. Add the recommended 5 drops to a drink, following H2Orega’s own directions. We like H2Orega in lukewarm water with a teaspoon of honey. More water gives a milder herbal flavour. Browse our honeys from different regions and floral sources to choose a flavour you enjoy.

50 mg is the weight of the complete three-oil blend. The 84% figure refers to the oregano oil before dilution. The label does not give a separate amount for oregano oil or carvacrol per daily dose. No nutrient reference value has been established for this blend.

How to use

Take 2 drops daily. The drops can be placed under the tongue, added to juice or water, or taken with food. The oil does not dissolve in a drink and retains its strong taste.

How we take ours: We hold the drops under the tongue for a moment before swallowing; for us, the initial sharpness eases a little, so they go down more comfortably. If you feel any burning or irritation, don’t hold them in your mouth. Another option we like is to add the recommended dose to a spoonful of honey, then swallow. The honey takes the edge off the strong herbal flavour. You’ll find a choice of honeys in our collection — choose one you enjoy.

How long does a bottle last at 2 drops a day?

The label lists 432 daily doses. This tells you how long the bottle lasts at 2 drops a day; it is not advice to take the drops continuously for 432 days.

Close the bottle after use and store away from direct sunlight and heat. Keep out of reach of children.

Sources & further reading

• Isotope analysis of natural and synthetic carvacrol and thymol, 2006 — a method for distinguishing the origin of these compounds.
• Oleacein and Oleocanthal: Key Metabolites in the Stability of Extra Virgin Olive Oil, 2023 — naturally occurring constituents and oxidative stability.
• Gustav Heess: MCT oil composition and properties — technical background on carrier oils.
• Walasek-Janusz et al., 2024: chemical composition of four oregano oils — differences between essential oils; not a clinical study of OregaULTRA.
• International Olive Council: definitions of virgin olive oils — classification and extraction methods.
• NIH LiverTox: oregano — tolerability and adverse effects — safety background for the precautions above.
• NIH LactMed: oregano during breastfeeding — the limits of available safety data.

From wild ingredients to finished formulas

NAHS develops & manufactures its own supplements. Led by founder Judy K. Gray, its formulation specialists work alongside manufacturing & quality-control staff.

Oregano was just the beginning

The range began with Oreganol P73 & has since grown well beyond oregano. Judy K. Gray has developed more than 400 formulas for NAHS & its sister brand, Physician’s Strength, which has a separate range for healthcare practitioners.

A whole-food approach

Herbs, spices & foods supply a broad range of naturally occurring compounds. NAHS looks beyond individual constituents to the wider aromatic profile of its plant oils. This approach informs the choice of oregano species for P73, as well as the other ingredients in its blends.

Beyond oregano

Black seed, turmeric, chaga & wild berries sit alongside fish oils & food blends in the range. These ingredients are available in capsules, drops & drinks, each with its own formulation & directions.

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Knowing where ingredients come from

NAHS works with long-standing partners & local harvesters in the Mediterranean mountains, Peru & northern Canada. Local knowledge guides the choice of plants, the timing of the harvest & how each ingredient is processed.

Supporting local communities

The relationship goes beyond buying herbs. NAHS has helped fund wells, schools & community facilities. Through its Strong Community Causes programme, the brand also supports selected projects nominated by customers.

Explore NAHS’s history, ingredients & manufacturing

In-house research & development

The development team selects the ingredients, processing methods & final format for each product, whether an oil-filled capsule or a liquid extract.

Formulation specialists

Led by Judy K. Gray, formulation specialists assess the ingredients & their combinations, choosing the extracts, carriers & other components for each product.

Made by its own team

NAHS manufactures its own finished products. Liquids are bottled on site under the supervision of its quality-control team.

Checks from ingredient to finished blend

Quality checks cover ingredient identity, levels of selected constituents & unwanted impurities. Both incoming ingredients & finished formulas are assessed.

Processing that suits the ingredient

Steam distillation, cold pressing, extraction, juicing & milling serve different purposes. The ingredient & intended formula determine which method is used.

GMP & facility certifications

Manufacturing follows GMP principles. The facility holds organic, Kosher & Halal certifications. These apply to the facility; certification of a specific product is a separate matter.

The people behind NAHS & Pravé Bio

Judy K. Gray, M.S.: founder of NAHS

• Education & early career. Judy studied education at the University of Central Missouri, earning her bachelor’s degree in 1967 & master’s in 1968. Her early career was in education & marketing.
• Founding & leading NAHS. She led the American Institute of Curative Medicine from 1990 to 1998, then founded NAHS in 1999. She continues to oversee ingredient sourcing, formula development & the brand’s triple-testing process.
• Books & publications. Judy wrote Kids Need Care & co-authored The Handbook of Nutrition Quizzes & Eat Right or Die Young. Read about her career in her Marquis Who’s Who profile.

Pravé Bio: NAHS’s exclusive partner for Europe

• Our London beginnings. Jana Čevelová & Jan Zaoral run Pravé Bio through Nuzboz s.r.o. Our relationship with NAHS began in 2015, when we first stocked Oreganol P73 in our London-based online shop.
• Our European distribution partnership. After returning to Czechia, we expanded the partnership. Today, we are NAHS’s exclusive European distributor & import directly from the brand in the USA.
• Questions answered at the source. The NAHS team shares ingredient specifications & manufacturing documentation with us. When customers need more detail, we ask the people who develop & make the products.