Island Nutrition, Oregano Oil Organic Liquid Drops - 100% Pure & Undiluted - USDA-Certified Organic (1 oz) 75% Carvacrol - Grown in Spain - Immune Support Supplement with Oil of Oregano. Review

4.6 (3,200) Amazon rating$38.002,000+ bought last month

Our verdict

This is a pure, undiluted liquid oregano oil labeled at 75% carvacrol, and with close to 2,000 monthly purchases logged alongside a steady 4.6 rating, it is one of the more established drop formats in this lineup.

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Best for

Buyers who want a concentrated liquid drop they can measure into water or juice and who are not put off by a very strong oregano taste.

Skip if

You dislike strong flavors or would rather take a capsule that avoids tasting the oil directly.

  • Form Drop
  • Count 1 Fluid Ounces
  • Flavor Very Strong Oregano Taste.
  • Diet Gluten Free, Keto, Plant Based, Vegan, Vegetarian
  • Priced 100% above the category median ($18.99 across 39 tracked models)

Pros

  • USDA Organic certified and grown in Spain
  • Stated 75% carvacrol concentration on the label
  • Fits gluten free, keto, plant based, vegan, and vegetarian diets
  • 4.6 average rating with roughly 2,000 monthly purchases logged

Cons

  • Very strong oregano taste per the label, which is not for everyone
  • Premium price for a 1 ounce bottle
  • Liquid drops require careful measuring compared to a pre-dosed capsule

Our scorecard

4.6/5 overall
  • Owner rating4.6/5

    4.6 average across 3,200 owner ratings

  • Popularity4.7/5

    3,200 owner reviews, more than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

Island Nutrition sells this as a 1 fluid ounce bottle of organic liquid oregano oil drops, certified USDA Organic and grown in Spain. The maker states a 75% carvacrol concentration on the label and markets the product for immune support, framed as a stated claim rather than a medical one.

The label describes the taste as very strong oregano flavor, which tracks with it being sold undiluted rather than pre-mixed into a carrier oil or capsule. It fits several diet labels, including gluten free, keto, plant based, vegan, and vegetarian, which is worth noting for anyone filtering by those needs.

At $38 for a single ounce, it sits at a premium price point per ounce compared to some other liquid drops in this category, though the USDA Organic certification and consistent 4.6 average across 3,200 reviews suggest buyers generally find it worth the cost. As with any supplement, it is worth talking to a healthcare professional before adding it to a routine.

Specifications

FormDrop
Count1 Fluid Ounces
FlavorVery Strong Oregano Taste.
DietGluten Free, Keto, Plant Based, Vegan, Vegetarian

Performance notes

Ships as liquid drops in a 1 fluid ounce bottle. The maker describes the flavor as a very strong oregano taste, consistent with an undiluted oil rather than a flavored or masked formula. Diet labeling covers gluten free, keto, plant based, vegan, and vegetarian.

What buyers say

A 4.6 average across roughly 3,200 reviews, paired with an estimated 2,000 purchases in the past month, points to steady repeat demand. The strong taste comes up as an expected trait of an undiluted oil rather than a common complaint.

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Frequently asked questions

What does the 75% carvacrol figure mean?

Carvacrol is the compound the maker highlights as the main stated component of the oil, and 75% refers to the concentration listed on the label. This is a description of the product's makeup, not a claim about treating or preventing any condition.

Is it suitable for a vegan or keto diet?

Yes, the label lists compatibility with gluten free, keto, plant based, vegan, and vegetarian diets.

How strong does it taste?

The maker describes it as a very strong oregano taste since the oil is undiluted. Many buyers mix it into water or juice to make it easier to take, and it is a good idea to check with a healthcare professional before starting any new supplement.

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