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$200
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Product Description
Oleuropein Capsules are nutritional supplement products containing standardized oleuropein, a characteristic secoiridoid polyphenol naturally found in olive leaves and other parts of Olea europaea. They are developed for antioxidant and botanical wellness formulations requiring a defined active-marker concentration, controlled purity, convenient capsule delivery, and consistent specifications for private-label nutraceutical production.
Oleuropein is one of the principal phenolic compounds associated with olive leaf and is commonly used as a standardization marker for Olea europaea extracts. Chemically, it is a secoiridoid glycoside containing hydroxytyrosol-related and elenolic acid-derived structural components.
Commercial oleuropein ingredients range from standardized olive leaf extracts to highly purified oleuropein. This distinction is important for capsule development because a 20% standardized botanical extract and a 98% purified oleuropein ingredient provide very different amounts of oleuropein at the same capsule fill weight.
| Item | Specification |
|---|---|
| Product Name | Oleuropein Capsules |
| Active Ingredient | Oleuropein |
| Botanical Source | Commonly derived from Olea europaea L. leaf |
| Product Category | Standardized Plant Extract / Antioxidant Nutritional Supplement Capsules |
| Compound Type | Secoiridoid glycoside / olive polyphenol |
| CAS Number | 32619-42-4 |
| Molecular Formula | C25H32O13 |
| Molecular Weight | 540.51 g/mol |
| Typical Appearance | Yellow-brown botanical extract powder at lower standardizations; highly purified oleuropein is typically supplied as a lighter-colored to off-white powder |
| Common Assay Grades | 10%, 20%, 40%, 50% oleuropein Standardized Extracts; high-purity grades such as 98% available for specialized formulations |
| Test Method | HPLC |
| Capsule Shell | Hard gelatin or vegetarian HPMC capsule options |
| Capsule Fill | Customized according to oleuropein concentration, serving target, capsule size, and formulation requirements |
| Particle Size | Customized according to blending and capsule filling requirements |
| Formulation Options | Single-ingredient or customized multi-ingredient capsule formulations |
| Quality Testing | Identity, oleuropein assay, heavy metals, microbiological parameters, residual solvents, and moisture |
| Shelf Life | Typically 24 months under recommended storage conditions |
| Storage | Store tightly sealed in a cool, dry place away from direct sunlight, heat, and moisture |
| Bulk Ingredient Packaging | 1 kg and 5 kg aluminum foil bags; 25 kg fiber drums for applicable bulk grades; customized packaging supported |
| Finished Capsule Packaging | Bottles, jars, and customized private-label packaging formats |
| Order Quantity | OEM and bulk quantities supported; production requirements vary according to assay grade, formula, capsule type, and packaging customization |
Oleuropein concentration is the defining purchasing variable for this ingredient. Buyers should distinguish between standardized olive leaf extract and highly purified oleuropein rather than comparing products solely by price per kilogram. The assay directly affects how much raw material is required to achieve a given oleuropein contribution in the finished capsule.
| Oleuropein Grade | Formulation Profile | Buyer Selection Logic |
|---|---|---|
| 10%-20% | Standardized olive leaf extract with a broader botanical matrix | Suitable when the formulation concept emphasizes olive leaf extract and allows a higher extract weight per serving |
| 40%-50% | More concentrated standardized botanical extract | Useful for increasing oleuropein contribution while reducing the amount of extract required inside the capsule |
| 98% | Highly purified oleuropein | Selected when precise active-compound concentration, lower ingredient mass, or oleuropein-specific positioning is the primary formulation objective |
At equal raw-material weights, a 40% oleuropein ingredient provides approximately twice the oleuropein of a 20% grade, while a 98% ingredient is fundamentally different from a conventional standardized olive leaf extract. Formulators should therefore calculate the desired oleuropein contribution first and then select the grade, capsule size, and serving configuration.
Oleuropein and olive leaf extract are related but should not automatically be treated as identical purchasing specifications. Olive leaf extract is a botanical matrix containing oleuropein together with other naturally occurring constituents, while highly purified oleuropein represents a more concentrated individual compound specification.
For products marketed around the botanical identity of olive leaf, a standardized extract may be appropriate. For formulations designed around a precisely controlled oleuropein quantity, a higher assay grade can simplify active-content calculations and reduce the amount of raw material required per serving.
Oleuropein Capsules are used in nutraceutical formulations where standardized olive-derived polyphenols are desired. Oleuropein has been studied for its antioxidant properties and its biological role as a characteristic constituent of olive leaf. Finished-product claims and labeling should be reviewed according to applicable regulatory requirements in the intended sales market.
Oleuropein Capsules can be developed around different assay grades depending on the target formula. OEM projects may use standardized olive leaf extract or higher-purity oleuropein and can be adjusted according to capsule shell preference, serving configuration, complementary ingredients, and finished packaging requirements.
Oleuropein concentration should be analytically verified rather than inferred from the botanical source or extract ratio. Production under GMP-standard conditions combined with batch testing helps establish consistent specifications for both standardized olive leaf extracts and higher-purity oleuropein ingredients.
A clearly defined oleuropein assay gives procurement teams a measurable basis for comparing ingredients and calculating active content per serving. It also prevents confusion between lower-concentration olive leaf extracts and purified oleuropein materials that may appear similar in product descriptions but perform very differently in capsule formulation.
Standard and customized specifications, in-house R&D and testing support, GMP-standard production conditions, stable bulk supply, flexible OEM/ODM services, third-party testing options, and global export experience can support projects from ingredient evaluation through finished Capsule Manufacturing.
Bulk oleuropein ingredients are commonly supplied in sealed 1 kg or 5 kg aluminum foil bags, with 25 kg fiber drums applicable to suitable bulk grades and customized packaging available according to project requirements. Finished capsules can be packed in bottles, jars, or private-label formats. Products should remain sealed and protected from excessive heat, moisture, and direct sunlight.
The choice depends on product positioning and formulation design. Standardized olive leaf extract retains a broader botanical matrix and is appropriate for olive leaf-focused products, while high-purity oleuropein provides greater active concentration per gram. Buyers should define the desired oleuropein amount per serving before selecting the raw-material grade.
No. Higher purity means greater oleuropein concentration, but it does not automatically make the ingredient more appropriate for every product. A standardized botanical extract may better match an olive leaf positioning, whereas 98% oleuropein is useful when active concentration and capsule-space efficiency are the main formulation priorities.
Oleuropein should be quantified using an appropriate validated analytical method, commonly HPLC. Buyers should review the assay result together with the ingredient identity, specification sheet, batch COA, and relevant contaminant testing rather than relying solely on an extract ratio or marketing description.
Yes. Oleuropein concentration, extract grade, capsule shell, fill composition, complementary ingredients, serving configuration, labeling, and packaging can be adapted to the product concept. The selected assay grade should be established early because it directly affects raw-material quantity, capsule capacity, formulation design, and finished-product specifications.
Oleuropein Capsules provide a flexible format for standardized olive-derived polyphenol supplements, ranging from conventional olive leaf extracts to highly purified oleuropein formulations. Defining the target oleuropein contribution and verifying it by HPLC are central to selecting the right grade and developing a consistent commercial capsule product.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for Oleuropein Capsules.

Packaging & Delivery
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