Earth Friend Herb Co. Oil of Oregano Review
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Study, Trial or Testing Result Summary
Members Only2 human studies · 2 improved
No study has measured biological age or DNA repair with this product or its ingredients, so there is no direct evidence that it turns back the aging clock. The evidence is two small trials on oxidative stress, the cell-damaging chemical strain linked to aging. In 24 healthy male soldiers, a single 500 milligram oregano capsule taken right after a demanding combat test lowered blood signs of muscle damage and oxidative stress and raised antioxidant markers at one and two hours, compared with placebo [1]. This was a one-time dose measured over a few hours, not a long-term study [1]. This product gives oregano leaf extract at a full dose when taken at two servings a day. In 33 adults with moderate asthma, carvacrol, one of the main active compounds in this product, taken daily for two months at a dose based on body weight, improved oxidative stress markers, inflammatory signals, breathing symptoms and lung function, while the placebo group showed no meaningful change [2]. Because that trial was in people with asthma, the results may not apply to healthy adults who want to slow aging [2]. Neither study reported what share of people improved. Animal and cell studies are never counted.
See all 2 studies →Hide the studies
- In 33 adults with moderate asthma, carvacrol at 1.2 mg per kg of body weight daily for two months improved breathing symptoms, lung function, oxidative stress markers and inflammatory signals, while the placebo group showed no significant changes.Carvacrol improves pulmonary function tests, oxidant/antioxidant parameters and cytokine levels in asthmatic patients: A…
- In 24 healthy male soldiers, a single 500 mg oregano capsule taken right after a combat readiness test lowered blood markers of muscle damage and oxidative stress and raised antioxidant markers at 60 and 120 minutes compared with placebo.Oregano (Origanum vulgare) Consumption Reduces Oxidative Stress and Markers of Muscle Damage after Combat Readiness Test…
Review Totals and Summary
Members Only3,100 reviews · 95% positive
Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.
Biohacker Summary
Members Only0 of 10 recommend it
Only one panelist spoke about carvacrol, the main ingredient, and he recommends it in pure form as the active part of oregano oil and a strong antimicrobial that can be used instead of meds. No doses or preferred forms were given for it, and nobody else on the panel addressed it directly. Oregano is a smaller ingredient in this product, and most of the panel recommends or uses it, mainly as an antimicrobial for the gut, yeast overgrowth and infections, or as a food herb. One panelist warns against vaporizing oregano oil because it is extremely caustic and irritating, and another stopped using oregano oil in her oil pulling mix.
See all 9 biohackers →Hide the biohackers
Dave Asprey · Carvacrol · recommends
- Lists pure carvacrol, the active ingredient in oregano oil, as a strong antimicrobial that can be used instead of meds.
- Recommends adding oregano to oil halfway through cooking to provide additional antioxidants and protect the oil, or when using butter at the end for flavor.
- States that oregano regulates gut bacteria.
- Recommends oregano oil as a powerful natural antimicrobial for addressing SIBO.
- Consumes about a tablespoon or two per day of ground up oregano for its polyphenol content.
- Took oregano when he woke up feeling tired, describing it as "nature's meds" and saying he loves it.
- Is a huge fan of oregano, noting it has some anti-nutrients but the benefits are much higher, making it worthwhile.
- Recommends oregano for its plant polyphenols and minerals.
- Eats a tablespoon of dried oregano every day when he cooks his steaks and rice to get more polyphenols.
- Mentions that oregano oil can be taken and works some of the time as an anti-fungal.
- Dave Asprey suggests trying grapefruit seed extract plus oil of oregano capsules three times a day to knock out SIBO in about four to six weeks, noting that three times a day oil of oregano capsules could be really helpful.
Dr. Eric Berg · Oregano · recommends
- Try natural remedies like oregano for red cheeks.
- Recommends cooking with oregano as a habit that slows aging.
- Recommends oregano oil for hidden infections (EBV).
- Recommends oregano oil to directly kill candida.
- Mentions that consuming oregano is a great remedy for dry cough, but there is something better.
- Lists oregano oil as one of the best natural remedies to help purge and kill parasites.
- Mentions oregano oil as another good anti-parasitic option but cautions against overdoing it, as it can create a reaction in the body.
- Recommends oregano as a spice or herb to use on food regularly to keep NAD high for a long life.
- Recommends oregano oil as effective in fighting bacteria, yeast, and mold.
- Recommends oregano oil as a powerful antifungal, anti-candida, and anti-yeast remedy, suggesting five drops daily.
Bryan Johnson · Oregano · uses
- Uses oregano as part of their breakfast.
- Eats oregano for breakfast.
Thomas DeLauer · Oregano · recommends
- Recommends oregano, explaining that its carvacrol destroys pathogenic membranes while sparing good bacteria and tightening gut junctions.
- Recommends Mexican oregano, noting it contains the antioxidant luteolin, which has been shown to help brain fog.
- Notes that oregano, along with rosemary and thyme, triggers the body to utilize fats more effectively and makes food taste good.
- Recommends sprinkling little bits of oregano, along with sage, rosemary, and thyme, during a deep fasted state, especially during longer fasts, to activate ppar alpha and provide a satiation effect.
- Recommends consuming Mediterranean spices like rosemary, thyme, oregano, and sage prior to a fast because they contain hispigiline, which activates ppar alpha to aid in fat adaptation.
- Adds oregano to his oil blend, noting that it has an anti-oxidation and antimicrobial effect, helping to prevent the oil from oxidizing and denaturing.
- Suggests playing around with oregano during the fasting period, noting it has powerful effects on gene expression related to fat burning, and also recommends it in the last meal for genetic activators to help the next fast.
- Recommends oregano as a topping, stating it's good to go.
- Recommends using a little bit of oregano with breakfast, keeping spices simple during the carnivore challenge.
- Suggests combining a ketogenic diet with herbal-based oregano oil to help take down bacterial overgrowth before introducing probiotics or fermented foods.
Ben Greenfield · Oregano · neutral
- Oregano was mentioned in a study as a biofilm disruptor that can improve microbial access and affect outcomes in SIBO and methane-dominant cases.
- Stuffs the trout with herbs like oregano.
- Warns against vaporizing oil of oregano because it is extremely caustic and irritating, recounting a past experience where he did so while ill with pneumonia out of desperation.
- Mentions oregano oil as an example of an antimicrobial that can be used for gut health.
- Recommends the regular use of oil of oregano to help nuke bacterial overgrowth in the gut for those with FODMAP sensitivity.
- Ben Greenfield has used oil of oregano as a readily accessible hack for parasites in the past.
- Warns that oregano oil has potent antimicrobial properties that kill both good and bad bacteria, and therefore should not be consumed at the same time as probiotics or fermented foods, recommending a separation of two to four hours.
- Recommends high-dose oil of oregano, taking a full dropper full three times a day for two weeks, as it is amazing for candida, yeast, fungus, and crushes parasites.
- Recommends combining high-dose proteolytic enzymes with an herbal antimicrobial or antifungal agent like oil of oregano for candida and yeast issues.
- Ben states that oil of oregano is always in the Greenfield medicine cabinet.
Andrew Huberman · Oregano · neutral
- Mentions Mexican oregano as one of the random foods that tend to inhibit DPP4.
Dr. Mark Hyman · Oregano · uses
- Used an herbal regimen that included oregano as part of a combination product to treat a patient's dysbiosis and yeast overgrowth.
- Recommends including oregano in the diet, stating it is a great antimicrobial.
- States that oregano oil has effects and they try it when dealing with tough, desperate patients.
- Uses oil of oregano as an herb to treat fungal overgrowth.
- Mentions that herbal supplements like oregano can kill yeast.
- Recommends oregano as a botanical that is helpful for getting rid of parasites.
- Used an herbal regimen containing oregano and berberine for six weeks to treat a patient's dysbiosis, finding it extremely helpful.
- Used natural antibacterial herbs like oregano and thyme to reduce bacterial overgrowth in a child, leading to significant improvements in behavior and mood swings within eight weeks.
- Uses oregano as a botanical that is helpful for getting rid of parasites and treating dysbiotic or pathogenic organisms.
- Used oregano as part of an herbal treatment for SIBO in a child, which resulted in significant improvements in behavior and attention.
Siim Land · Oregano · neutral
- Suggests spicing up oil pulling with a tiny bit of essential oils like oregano or clove.
Dr. Rhonda Patrick · Oregano · stopped
- Previously used oregano oil in her coconut oil pulling concoction.
RAL Summary
Members OnlyTier 2 for Healthy Aging
Two small placebo-controlled human trials found better oxidative stress and antioxidant markers with oregano extract and carvacrol [1][2], and 95% of 3100 reviews are positive, which meets the rules for tier 2 on aging markers.
Take 2 servings a day (2 capsules) to match the dose that worked in the studies.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Immune system, Respiratory system, Muscular system
Combine with: Combine with a healthy diet and lifestyle.
Possible side effects: No major side effects reported.
Supplement Facts
Oregano leaf supercritical CO2 extract 230 mg · Carvacrol and Thymol 32 mg
| Oregano leaf supercritical CO2 extract | 230 mg | † |
| Carvacrol and Thymol | 32 mg | † |
Other ingredients: Sunflower lecithin and vegan capsule (hypromellose).
Label source: Reverseagelab · Report a label change
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Graded November 14, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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