Antioxidants Reviews

Best olive leaf extract supplements – Side effects and Benefits

Best olive leaf extract supplements

Olives bring a multitude of benefits to our wellness with visible results inside and outside our bodies. No wonder that people have been using olive leaf extract since ancient times.

Olive leaf extract benefits

The olive leaves are processed to extract Oleuropein, a chemical compound that has been used for traditional medicine for centuries. This bitter extract has pharmaceutical properties such as:

  • Antioxidant
  • Anti-aging
  • Protects the skin
  • Anti-inflammatory
  • Anti-viral
  • Anti-microbial
  • Anti-cancer
  • Anti-atherogenic
  • Anti-rheumatic
  • Antipyretic
  • Diuretic
  • Neuroprotective activity

A number of scientific studies have shown its benefits for people suffering from heart diseases, its healing proprieties including:

  • Vasodilatory action
  • Hypotensive action

The olive leaf extract can be bought in the form of powder, capsules, and liquid (tincture). It’s worth reading a few reviews before deciding which one to choose and work out which formula would better suit your needs. Check the labeling for the ingredients list, dosage, and eventual side effects.

Best Olive Leaf Extract

Olive leaf extract side effects

If you are worried about the eventual side effects of consuming this extract here is a list that we think it might prove useful for you:

  • Clinical studies show no side effects of consuming olive leaf extract.
  • People suffering from diabetes need to be aware of the hypoglycaemic effects, reducing blood sugar levels. It is recommended to pay attention to the amount taken.
  • When taking medication for long-term conditions, such as hypertension pills, have a discussion with your doctor. Your doctor could give you recommendations linked with the appropriate dosage of olive leaf extract supplements to be taken daily.
  • If you are pregnant or breastfeeding it is recommended to discuss about taking olive leaf extract supplements with your doctor
  • Children – ask for medical advice before giving any kind of supplements to children to avoid allergies or other complications.

In relation to the side effects of olive leaf extract on the skin – eruptions have been reported as a result of the antibacterial action, a reaction known as Herxheimers. It was observed by two dermatologists in 1895 whilst treating Syphilis with the aid of olive leaf.

Some people reported a feeling of nausea when taken on an empty stomach. It is recommended to take your extract with your meal or just before it.

As with any food supplement, any underlying illnesses could cause various body reactions. Our advice is to talk to a pharmacist if there are any issues or questions that need to be answered before taking the olive leaf extract.

Quantities might need to be adjusted, your body might react differently to each dosage.

Olive leaf extract dosage

As the extract comes in various forms, the exact dosage cannot be prescribed. Each type of supplement will have the precise dosage included in the package information.

Patients with diabetes, heart conditions, pregnant, and breastfeeding women should consult a doctor before taking any supplements and ask for dosage tips.

Depending on your situation and the reason you may want to use the olive leaf extract, the dosage might need to be adjusted.

If you are ever in doubt it is worth asking a pharmacist about the correct amount that you should use when taking olive leaf extract supplements of any type.

As we said previously, look for any side effects when you first start using this extract. Start with a smaller dosage and increase the amount step by step to avoid any unpleasant side effects.

Olive leaf extract uses

As you have seen there are multiple benefits brought by the olive leaf extract, backtracked scientifically in the pharmaceutical study. Here are some of its uses:

  • To boost immunity
  • To prevent infections
  • To prevent and alleviate allergies
  • Fight against cold
  • To help fight off infections
  • Alleviates fever discomfort
  • Alleviates flu symptoms
  • Used daily can act as a preventing aid against common viruses
  • Used for a good digestion
  • To lower high blood pressure
  • Improving skin appearance
  • Help against hair loss
  • As nourishment for hair and nails
  • Taken before/after exposure to X-ray radiation to protect healthy cells
  • Healthy supplement during a diet for weight loss
  • Helps weight management
  • As an aid to managing stress
  • Alleviates respiratory symptoms (protects the lungs)
  • To combat tiredness
  • Used to improve symptoms given by arrhythmia
  • Used to help against fungal yeast growth (Candida Albicans) and other fungal infections
  • Used to aid your gut
  • Used against bacteria and bacterial infections (antiseptic)without killing the good bacteria that live in our bodies

At the moment, you can buy on the market olive leaf extract supplements in these formats:

  • Capsules
  • Powder
  • Liquid
  • Spray

Olive leaf extract Capsules:

Taking olive leaf extract in the form of capsules is the fastest and easiest option. You just need a glass of water and that’s all.

Capsules offer a higher quantity for the same amount of money when compared with liquid extract. They are easier to carry and travel, especially on holidays.

Also, you won’t need to worry about the bitter taste given by the Oleuropein content.

1. Sunergetic Premium Olive Leaf Extract Capsules

The company prides itself on its high-quality products. Their products are made in a GMP certified facility.

This olive leaf extract food supplement comes in packaging containing 120 capsules. Each capsule contains olive leaves in a quantity of 750 mg with 150mg Oleuropein.

The suggested dosage is 1 capsule taken once or twice per day with your meal.


  • Good quantity for daily use
  • Strong dosage in each capsule
  • Easy to transport
  • Standardized 20% Oleuropein
  • Doesn’t leave a bad aftertaste
  • Easy to swallow
  • They don’t contain lead
  • Vegetarian
  • Good report price/quality


  • Strong dosage – might need to be adapted for some people
Premium Olive Leaf Extract Capsules Bottle

2. Olivus Olive Leaf Extract Capsules OliveLeafMAX (25% Oleuropein)

This product is manufactured in the United States, in a GMP facility, by Olivus.  The company prides itself on sourcing the best organic ingredients for its supplements.

Olivus Olive Leaf Extract Capsules are vegetarian, contain 25% Oleuropein, with a shelf life of two years from the production date that can be found on their packaging. The recommended dosage is 1 to 2 capsules per day taken with a glass of water. This amount can be increased during illness periods.


  • Easy to store
  • A high content of Oleuropein
  • Sourced from Spanish olive trees
  • Vegetarian-friendly
  • No fillers were used
  • Enough for a month
  • Don’t leave a bitter aftertaste
  • Excellent results in common colds (users reviews)


  • The high content of extract might affect people suffering from allergies, ask expert opinion before using
Olivus Olive Leaf Extract Capsules OliveLeafMAX

Olive leaf extract Powder

The powder is made by processing the dried olive leaves.

It can come in various sizes and is good to use daily as added into your food as a food supplement. If wanted, the powder can be mixed to create your own tincture.

You can use the powder olive leaf extract to infuse your daily cup of tea.

It can also be used as an ingredient to create your own cosmetics such as home-made soaps, bath bombs, shampoos, conditioners or creams.

1. Olivus Olive Leaf Extract – OliveLeafMAX (25% Oleuropein) Bulk Powder

It is made from organic olive leaves imported from Spain.

This powder olive leaf extract comes rather surprisingly in a plastic jar instead of a bag. This makes for easier storage around the house and easy to travel with. When not using the powder extract it needs to be stored in a place away from direct sunlight and heat and kept away from humidity.

Olivus recommends as a dosage: a quarter or half a teaspoon daily. This can be adjusted as needed and as per the doctor’s/ pharmacist’s recommendation.


  • Good quantity for daily use – 8 ounces
  • High strength dosage
  • Easy to transport
  • Easy to store
  • Standardized 25% Oleuropein
  • Shelf life – 2 years
  • Good report price/quality


  • Very strong dosage – might need to be adapted for some people
  • Could cause allergy due to its strength
  • A bit pricey
Olivus Olive Leaf Extract Powder

Olive leaf extract Tincture Liquid

Tincture olive leaf supplements are a good way to add to your drinks or yogurt. It is important to follow up the instructions on the dosage as it could irritate your stomach due to its strength.

A disadvantage might be the strong bitter taste, but as it usually is taken once per day, it becomes easier to get used to the taste.

1. Hawaii Pharm Olive Liquid Extract, Organic Olive (Olea europaea) Tincture

It is sold in a bulk of 2 bottles 2×2 oz, 2×4 oz. and other sizes are also available. The olive leaves are sourced from Turkey.

This particular product contains alcohol, around 30% of one bottle’s content, but the manufacturer offers a non-alcoholic version as well.


  • Comes in various sizes
  • High dosage 1:3
  • 1ml equal to 300 mg of dried olive leaf extract (powder)
  • Easy to store
  • 80 ml in a bottle Oleuropein


  • Very strong dosage – might need to be adapted for some people
  • Bitter taste
  • Pricey
Hawaii Pharm Olive Liquid Extract Tincture

2. Olive Leaf Extract Liquid Concentrate Ethanolic Tincture

This extract is easy to use and is sufficient for around 130 servings. It is produced and sold by Herbal Wellness International.


  • Contains 20% Oleuropein
  • Easy to store
  • Easy to use
  • No additives
  • Suitable for vegans
  • Fast absorption


  • very bitter taste
Olive B120 Alcohol-Free Herbal Extract Tincture HerbEra


As you can see it is easy to find products that contain olive leaf extract. To choose your favorite product you need to think about why you want to start using these supplements, what type do you prefer (liquid, capsules, or powder), and pay attention to any adverse reactions.

Based on other customers’ reviews and opinions along with our own period of testing, we recommend Olivus Olive Leaf Extract supplements as they contain a high amount of Oleuropein.

Please remember to check the dosage on the packaging of the chosen product and consult a health specialist if you suffer from long term illnesses and allergies.

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