Olive Leaf Extract

Reliable Olive Leaf Extract Manufacturer & Bulk Supplier

Greenherb operates a certified processing facility specializing in Olive Leaf Extract, a standardized secoiridoid ingredient derived from the leaves of Olea europaea through controlled hydroalcoholic extraction and spray drying. Our production system delivers consistent oleuropein standardization, verified botanical identity, and batch-level documentation. This provides supplement manufacturers and functional food formulators with a dependable supply of this well-established Mediterranean herb extract.

Why Choose Greenherb Olive Leaf Extract

Oleuropein Standardization by HPLC

Each production batch is verified by HPLC against a defined oleuropein specification. Oleuropein is the primary secoiridoid glycoside in Olea europaea leaf. Consistent oleuropein loading ensures predictable active compound delivery across finished product formulations.

Hydroxytyrosol Co-Characterization

Beyond oleuropein, our extract is characterized for hydroxytyrosol content. Hydroxytyrosol is a phenolic compound produced from oleuropein hydrolysis. It is one of the most potent natural antioxidant compounds identified in olive-derived ingredients. Dual-marker characterization distinguishes our extract from single-marker oleuropein-only preparations.

Leaf-Exclusive Raw Material

Our extraction uses only Olea europaea leaves. Leaves accumulate the highest oleuropein concentration of any olive plant part. Using leaf exclusively avoids dilution by stem, bark, or fruit fractions with lower secoiridoid content.

Hydroalcoholic Extraction Selectivity

Our water-alcohol extraction system is calibrated for optimal secoiridoid and polyphenol recovery. It minimizes co-extraction of chlorophyll and wax compounds. The result is a well-defined, clean-tasting extract with consistent composition.

Spray-Dried Powder Consistency

Liquid extract is converted to free-flowing powder through controlled spray drying. This improves handling characteristics and dosing precision. The powder integrates directly into capsule filling and tablet granulation operations without additional processing steps.

Low Residual Solvent Profile

Post-extraction drying protocols are validated by headspace GC analysis. Residual solvent levels are confirmed below international pharmacopeia limits. This supports supplement-grade ingredient classification across major regulated markets.

Heavy Metal and Pesticide Compliance

Every lot undergoes ICP-MS heavy metal screening and GC/LC-MS pesticide residue analysis. Results are verified against EU and US regulatory thresholds before release for commercial supply.

Flexible Oleuropein Concentration Tiers

We offer multiple oleuropein standardization levels. These range from standard 20% through high-potency 40% specifications. A single supply relationship accommodates diverse finished product positioning requirements.

Certificate of Analysis

What Is Olive Leaf Extract

The Active Fraction of Olea europaea Leaf

Olea europaea is an evergreen tree with a long history of use in traditional food and herbal medicine cultures. The leaf contains a concentrated secoiridoid fraction dominated by oleuropein. Oleuropein is a bitter glycoside responsible for the characteristic sharp taste of fresh olive leaf. It is also the primary bioactive compound associated with the leaf’s recognized wellness properties.

Extract vs. Olive Leaf Powder

Olive leaf powder is produced through simple mechanical reduction of dried leaf material. It retains all leaf components at naturally occurring concentrations. Oleuropein content in crude olive leaf powder varies significantly by harvest season and leaf maturity. Olive Leaf Extract undergoes selective hydroalcoholic extraction and standardization. This concentrates oleuropein to a defined and HPLC-verified specification per unit weight. The extract delivers consistent active compound loading across batches. This is essential for supplement formulations requiring documented oleuropein potency.

Oleuropein and Hydroxytyrosol

These two compounds define the functional identity of olive leaf extract. Oleuropein is the parent secoiridoid compound. It is unique to Olea europaea and closely related plant species. Hydroxytyrosol is produced from oleuropein breakdown. Both compounds contribute to the antioxidant and cardiovascular wellness positioning of olive leaf extract. Understanding their relationship helps formulators select the appropriate standardization specification for their product concept.

Production Process

Leaf Sourcing and Qualification

Incoming Olea europaea leaves are authenticated by botanical identity verification and HPLC fingerprinting. Oleuropein content, moisture, heavy metals, pesticide residues, and microbiological status are screened. Only qualified leaf material proceeds to extraction.

Cleaning and Size Reduction

Qualified leaves undergo mechanical cleaning to remove stems, foreign matter, and substandard material. Material is then reduced to a defined particle size. This maximizes solvent contact area and optimizes oleuropein extraction efficiency.

Hydroalcoholic Extraction

Ground leaf material is extracted using a controlled water-alcohol system. Temperature, time, and solvent-to-material ratio are carefully managed. This selectively solubilizes the oleuropein and polyphenol-rich fraction from the leaf matrix.

Filtration and Clarification

Crude extract solution undergoes multi-stage filtration. Insoluble leaf fiber, chlorophyll aggregates, and wax compounds are removed. The result is a clarified secoiridoid-rich liquid extract.

Concentration Under Reduced Pressure

Filtered extract is concentrated under vacuum at controlled temperatures. Solvent is recovered while preserving thermally sensitive oleuropein. This prepares the extract for dual-marker standardization.

Dual-Marker Standardization

Concentrated extract is measured by HPLC for both oleuropein and hydroxytyrosol content. Controlled blending adjustments achieve target specifications for both markers. This ensures comprehensive secoiridoid fraction representation across every production batch.

Spray Drying

Standardized extract is atomized and dried at controlled temperatures with food-grade carrier support. This produces a uniform, free-flowing light green to tan powder.

Quality Release Testing

Each lot is tested for oleuropein content, hydroxytyrosol profile, moisture, heavy metals, pesticide residues, and microbiological compliance. Batches are released only after all parameters are confirmed within specification.

Protective Packaging

Powder is sealed in double-layer PE inner bags with desiccants and oxygen absorbers. Drums are light-proof and nitrogen-flushed. This protects oleuropein and hydroxytyrosol stability during storage and transit.

Functional Properties & Benefits

Cardiovascular Comfort and Circulation Support

Olive Leaf Extract is incorporated into cardiovascular wellness formulations. These products are designed to support healthy blood pressure comfort and contribute to a sense of cardiovascular wellbeing during daily routines. Oleuropein and hydroxytyrosol are the functional basis for this well-recognized positioning.

Immune Comfort and Antimicrobial Wellness Support

Olive leaf has a long traditional association with immune and antimicrobial wellness support. Supplement formulations incorporate Olive Leaf Extract in products designed to support everyday immune comfort and maintain general physical resilience during periods of seasonal challenge.

Antioxidant Activity

The combined oleuropein and hydroxytyrosol matrix contributes exceptional antioxidant capacity to finished formulations. Hydroxytyrosol in particular is recognized as one of the most potent natural antioxidant compounds among commercially available botanical ingredients.

Blood Sugar Comfort Support

Some daily metabolic wellness formulations incorporate Olive Leaf Extract. These products are designed to support healthy blood sugar comfort and contribute to a balanced metabolic state as part of a structured nutritional routine.

Skin Radiance and Anti-Aging Comfort

The polyphenol and secoiridoid content contributes to ingestible beauty formulations. These products target skin radiance, tone uniformity, and a youthful-looking complexion over consistent daily use.

Cognitive Clarity and Brain Wellness Support

Some nootropic and daily brain wellness formulations incorporate olive leaf extract. These products are designed to support mental clarity, focus comfort, and everyday cognitive function as part of a comprehensive brain wellness supplement approach.

Applications

Cardiovascular and Blood Pressure Comfort Supplements

Olive leaf supplement formulations in hard capsule, tablet, and powder sachet formats. Dual-standardized oleuropein and hydroxytyrosol content, documented botanical identity, and comprehensive regulatory documentation support finished product positioning in the cardiovascular wellness supplement category.

Immune and Seasonal Wellness Formulations

Multi-ingredient immune wellness formulations combine Olive Leaf Extract with elderberry, echinacea, and vitamin C. Seasonal immune comfort and daily physical resilience are primary positioning concepts in this supplement category.

Antioxidant and Polyphenol Wellness Blends

Multi-ingredient antioxidant formulations incorporate olive leaf extract alongside other high-ORAC botanical ingredients. Daily cellular protection, oxidative stress comfort, and comprehensive polyphenol wellness are primary product positioning concepts.

Metabolic Wellness Supplements

Olive Leaf Extract contributes to blood sugar comfort and metabolic balance supplement formulations. Multi-ingredient metabolic wellness products combine it with berberine, cinnamon extract, and chromium for comprehensive metabolic support positioning.

Cosmeceuticals and Topical Skin Care

Oleuropein and hydroxytyrosol-rich botanical extract for facial serums, anti-aging creams, and antioxidant-positioned skin care formulations. Plant-derived polyphenol content and olive botanical origin support natural and clean beauty product positioning.

Contact Greenherb for Olive Leaf Extract Supply

Greenherb supplies Olive Leaf Extract with verified oleuropein and hydroxytyrosol profiles, backed by comprehensive third-party testing. We offer flexible order quantities from laboratory samples to full container loads. Customized oleuropein standardization tiers, hydroxytyrosol co-characterization options, and particle size specifications are available on request. For immediate assistance, contact our sourcing team directly.

Greenherb – Your Strategic Partner for Botanical Ingredients and Functional Foods.