What is Olive Leaf Extract 20:1?
Olive Leaf Extract 20:1 is a standardized herbal extract (20:1) obtained from the Olive Leaf plant. It is used as a raw material in dietary supplement production.
Product Properties
- Part Used: Leaf
- Standardization: 20:1
- Solubility: Water-soluble
| Analysis | Value |
|---|---|
| Moisture | ≤5.0 % |
| Total Heavy Metals | ≤10 ppm |
| E.Coli | Negative in 10 g |
| Salmonella | Negative in 25 g |
What is Olive Leaf Extract 20:1 Used For? What is its Purpose?
What is Olive Leaf Extract 20:1 used for? Olive Leaf, with its content of Oleuropein, hydroxytyrosol, oleacein, tyrosol (polyphenols), is a standardized herbal raw material used in dietary supplements for blood pressure, cardiovascular, and antioxidant support. The standardized 20:1 content provides a consistent source of ingredients in formulations such as capsules, powder, tea, and liquid extracts (oleuropein standardized leaf extract).
Benefits and Main Uses of Olive Leaf Extract 20:1
- Blood Pressure Support: Systematic reviews and meta-analyses have shown that olive leaf extract reduces systolic and diastolic blood pressure, particularly in hypertensive and pre-hypertensive individuals.
- Cardiovascular and Lipid Profile: A meta-analysis involving 819 participants reported positive effects on blood pressure and lipid profile; oleuropein shows protective effects against arterial stiffness.
- Antioxidant Support: Oleuropein and hydroxytyrosol have strong antioxidant and anti-inflammatory properties.
- Traditional Immune Use: Olive leaf has traditionally been used for immune support and general health purposes (traditional/limited evidence).
Mechanism of Action and Active Components
Oleuropein and its polyphenol derivatives contribute to vasodilation, supporting endothelial and vascular health through antioxidant and anti-inflammatory effects.
Forms of Use (Tablet, Capsule, Powder)
The powder form can be used in tablet, capsule, powder mix/sachet, and (being water-soluble) liquid/syrup formulations.
Positive Plant List Check
Olive Leaf is among the permitted (positive) plants under the Turkish Food Codex regulations for dietary supplements. The permitted/used part is: Leaf.
Usage Rate in Dietary Supplements
According to the Restricted Substances List for Dietary Supplements, a daily usage limit of 8 mg/day applies to this component/extract.
Storage, Shelf Life, and Re-test
Store in a cool, dry place protected from light. The recommended re-test period is generally 3 years, but it may vary by manufacturer. The CoA (Certificate of Analysis) of the relevant batch should be consulted for the exact date.
Technical Documents and Supply — Asuka Kimya
You can contact Asuka Kimya for SDS, TDS, CoA, and supply conditions for Olive Leaf Extract 20:1.
References
The usage information on this page is compiled from official herbal monographs and scientific literature (e.g., EMA/HMPC, NIH/NCCIH, Cochrane, EFSA). The product is a dietary supplement raw material and is not intended for the diagnosis or treatment of disease.

