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Shaanxi Kaishi Biotechnology Co., Ltd
Product Description
Curcumin Capsules are nutritional supplement products formulated with standardized curcumin or turmeric-derived curcuminoids from Curcuma longa. They are commonly developed for antioxidant, healthy-aging, and botanical wellness formulations where buyers require defined curcuminoid content, controlled purity, suitable capsule loading, and formulation strategies that address curcumin's characteristically low water solubility and oral bioavailability.
Curcumin is the principal yellow polyphenolic compound associated with turmeric and belongs to the curcuminoid family. Commercial turmeric extracts commonly contain a mixture of curcumin, demethoxycurcumin, and bisdemethoxycurcumin, while highly purified materials may be standardized primarily to curcumin itself.
For B2B capsule development, the headline assay is only one part of the purchasing decision. A high-curcuminoid extract provides a concentrated active profile, but conventional curcumin has poor water solubility and limited oral absorption. Formulators therefore need to distinguish between standard curcuminoid powders and enhanced-bioavailability delivery systems.
| Item | Specification |
|---|---|
| Product Name | Curcumin Capsules |
| Botanical Source | Curcuma longa L. rhizome |
| Product Category | Standardized Plant Extract / Nutritional Supplement Capsules |
| Primary Active Compound | Curcumin |
| Common Standardization | Total curcuminoids, typically including curcumin, demethoxycurcumin, and bisdemethoxycurcumin |
| Curcumin CAS Number | 458-37-7 |
| Molecular Formula | C21H20O6 |
| Molecular Weight | 368.38 g/mol |
| Typical Appearance | Yellow to orange-yellow fine powder |
| Common Commercial Grades | Standardized turmeric extract with 90% to 95% total curcuminoids; high-purity curcumin grades and enhanced-bioavailability formulations are also used |
| Test Method | HPLC |
| Solubility | Practically insoluble in water; soluble to varying degrees in suitable organic solvents and formulation systems |
| Capsule Shell | Hard gelatin or vegetarian HPMC capsule options |
| Capsule Fill | Customized according to curcuminoid concentration, serving target, capsule size, and formulation requirements |
| Particle Size | Controlled or customized according to blending, dispersion, and capsule filling requirements |
| Formulation Options | Conventional curcumin, standardized curcuminoid extract, or customized bioavailability-focused capsule formulations |
| Quality Testing | Identity, curcuminoid assay, heavy metals, microbiological parameters, residual solvents, moisture, and applicable contaminant controls |
| Shelf Life | Typically 24 months under recommended storage conditions |
| Storage | Store tightly sealed in a cool, dry place protected from direct sunlight, heat, and moisture |
| Bulk Ingredient Packaging | 1 kg and 5 kg aluminum foil bags; 25 kg fiber drums for applicable bulk formats; customized packaging supported |
| Finished Capsule Packaging | Bottles, jars, and customized private-label packaging formats |
| Order Quantity | Bulk and OEM production supported; quantity varies according to assay grade, formulation system, capsule configuration, and packaging requirements |
The most important formulation decision for curcumin is not simply whether the raw material is 95% curcuminoids. Conventional high-purity curcumin can deliver a strong assay specification while still presenting limited aqueous solubility and oral absorption. Buyers should therefore decide whether the priority is botanical concentration, label simplicity, capsule-space efficiency, or enhanced delivery.
| Curcumin Format | Main Advantage | Buyer Consideration |
|---|---|---|
| Standardized 95% Curcuminoids | High concentration and straightforward assay specification | Suitable for conventional turmeric extract positioning and high active-content formulations |
| High-Purity Curcumin | Greater focus on curcumin as the individual compound | Useful when a defined single-compound specification is more important than the broader turmeric matrix |
| Curcumin with Piperine | Common formulation approach intended to support systemic exposure | Requires evaluation of formula compatibility, labeling, and market positioning |
| Phospholipid or Lipid-Based Curcumin | Designed to improve dispersibility and bioavailability | Assay percentage may appear lower because the delivery matrix contributes to total ingredient weight |
A bioavailability-enhanced curcumin ingredient may contain less curcumin by total weight than a 95% powder because phospholipids, lipids, or other carriers form part of the delivery system. Buyers should compare the complete specification and formulation objective rather than assuming that the highest assay percentage automatically represents the best finished-product choice.
Curcumin and total curcuminoids are related but not identical specification terms. Total curcuminoids generally represent the combined amount of curcumin, demethoxycurcumin, and bisdemethoxycurcumin. A product standardized to 95% total curcuminoids should therefore not automatically be interpreted as containing 95% curcumin alone.
For accurate sourcing and label development, procurement teams should confirm whether the assay reports individual curcumin content or total curcuminoids. This distinction affects ingredient comparison, formulation calculations, and the way the finished product is positioned.
Curcumin Capsules are widely used in turmeric, antioxidant, healthy-aging, and active-lifestyle supplement categories. Curcumin and related curcuminoids have been studied for their antioxidant activity and broader biological properties. Finished-product claims should remain consistent with the applicable nutritional supplement regulations in the intended sales market.
Conventional curcumin is hydrophobic and has poor water solubility, so formulation strategy can materially affect how the ingredient performs in a finished supplement. For standard capsules, formulators often prioritize high curcuminoid concentration and appropriate powder flow. For premium products, enhanced-dispersion or bioavailability systems may be selected instead.
Capsule developers should also review fill density, excipient requirements, moisture control, interactions with complementary ingredients, and the amount of non-curcumin carrier introduced by advanced delivery systems. These factors can influence capsule size, serving count, label declaration, and overall product cost.
Curcumin Capsules can be customized according to assay grade, turmeric extract profile, delivery technology, capsule type, serving configuration, and packaging requirements. OEM projects may use conventional 95% curcuminoids or more advanced formulations designed around dispersibility and absorption objectives.
Curcumin quality control should distinguish botanical identity from active-compound quantification. Production under GMP-standard conditions combined with validated analytical testing helps verify curcuminoid concentration, batch consistency, and contaminant control for both conventional turmeric extracts and specialized delivery-system ingredients.
A well-defined curcumin capsule specification makes clear whether the product contains conventional turmeric extract, purified curcumin, or a bioavailability-enhanced delivery system. This prevents misleading comparisons based only on assay percentage and helps procurement teams evaluate active content, carrier contribution, capsule capacity, and formulation performance on the same basis.
In-house R&D and testing support, GMP-standard production conditions, customized formulations, private-label packaging, third-party testing options, and stable bulk supply can support projects from ingredient selection through commercial Capsule Manufacturing.
Bulk curcumin and turmeric extracts are commonly packed in sealed aluminum foil bags and fiber drums suitable for protection against light and moisture. Finished capsules can be supplied in bottles, jars, and customized private-label formats. Products should remain tightly sealed and protected from excessive heat, moisture, and direct sunlight during storage.
No. A 95% total curcuminoid specification commonly represents the combined concentration of curcumin, demethoxycurcumin, and bisdemethoxycurcumin. Buyers should review the HPLC profile and specification wording carefully because a material standardized to 95% total curcuminoids does not necessarily contain 95% curcumin as an individual compound.
The correct choice depends on product positioning and formulation objectives. Standardized 95% curcuminoids provide a concentrated and simple botanical specification, while enhanced-delivery systems are designed to address curcumin's limited solubility and absorption. Buyers should compare active content, carrier system, supporting data, capsule loading, and cost per finished serving.
Advanced curcumin systems may include phospholipids, lipids, dispersing agents, or other carrier materials that form part of the ingredient. These components increase total ingredient weight while supporting delivery performance, so a lower curcumin percentage does not necessarily indicate lower formulation quality. The complete composition and intended function should be reviewed together.
Yes. Curcumin can be incorporated into botanical, antioxidant, and active-lifestyle formulas when ingredients are technically compatible. Formulators should consider capsule capacity, stability, carrier systems, excipient interactions, analytical control, labeling requirements, and whether complementary ingredients alter the intended positioning or finished serving design.
Curcumin Capsules provide a versatile botanical supplement format ranging from conventional 95% curcuminoid powders to specialized bioavailability-enhanced systems. For effective B2B sourcing, buyers should distinguish curcumin from total curcuminoids and evaluate assay, delivery technology, carrier contribution, capsule loading, and analytical verification together rather than selecting by purity percentage alone.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for Curcumin Capsules.
Packaging & Delivery
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