Bulk Turmeric Extract Supplier — Standardized 95% Curcuminoids, High-Bioavailability Grades, B2B Wholesale
Valeherb supplies turmeric extract bulk wholesale at 10% and 95% curcuminoids by HPLC, plus delivery, derivative and feed formats — with custom specifications, bioavailability-enhanced formats, and per-batch documentation. Raw Curcuma longa rhizome contains only 3–5% curcuminoids by weight; standardized extraction concentrates that fraction into a consistent, measurable ingredient. Because curcumin’s oral absorption is inherently low, phospholipid complex (phytosome) and water-dispersible formats are available for oral and beverage applications.
On this page: available grades and active-compound profile, how to choose a bioavailability format, curcuminoid dose ranges, and the sourcing criteria that matter most for turmeric (including heavy-metal testing).
Available Grades and Active Compound Profile
The correct specification depends on your application, target dose per serving, and cost structure. Custom ratios and extraction formats are available on request. If you are still deciding between whole-root powder and a standardized extract, see our breakdown of turmeric powder vs. turmeric extract for how curcuminoid concentration and cost differ between the two. For how each grade is made and what its COA should show, including tetrahydrocurcumin and synthetic curcumin, see our guide to curcumin grades by process and assay.
| Grade | Curcuminoid Content | Typical Application | Notes |
|---|---|---|---|
| 10% Curcuminoids | 10% curcuminoids | Food fortification, functional snacks, low-dose wellness products | Cost-effective; suitable where exact curcuminoid dosing is secondary to color and flavor contribution |
| 95% Curcuminoids | 95% curcuminoids by HPLC | Precision supplement formulations, standardized nutraceutical and topical applications | Individual curcumin / DMC / BDMC breakdown available on COA |
| Water-Dispersible | 20–40% curcuminoids (emulsified) | Functional beverages, RTD formats, clear liquid applications | Dissolves cleanly without haze or sedimentation |
| Oil-Soluble | ~2.5% curcumin (color value E1%1cm ≈ 40 at 425 nm, by UV) | Fat and oil systems, oil-based sauces and dressings, softgel fills, cosmetic oils | Brownish-red viscous liquid, soluble in vegetable oil; batch COA covers color value, solvent residue (≤50 ppm) and heavy metals |
| Tetrahydrocurcumin (THC) | 95–98% tetrahydrocurcumin by HPLC | Color-sensitive cosmetics, white creams and serums, white tablets | White to off-white hydrogenated derivative of curcumin; assayed against a THC reference standard and declared as tetrahydrocurcumin, not curcumin |
| Synthetic Curcumin, Single-Peak | ≥98% curcumin (single HPLC peak) | Research and reference work, single-compound formulations | Curcumin only, no DMC or BDMC; synthetic origin declared on COA; regulatory status and labeling vary by market |
| Synthetic Curcumin, Three-Peak | ≥95% total curcuminoids (three HPLC peaks) | Supplements needing a natural-ratio curcuminoid profile with synthetic batch consistency | Curcumin, DMC and BDMC blended to mimic the natural ratio; synthetic origin declared on COA |
| Feed-Grade Curcumin | 5–10% curcuminoids | Poultry, livestock and aquaculture feed and premixes | Produced and documented for feed use only; not for food or dietary supplements |
| Turmeric Residue (Feed) | Low curcuminoid content, stated per batch COA | Low-cost feed coloring and flavoring | By-product of curcuminoid extraction; feed use only |
Curcuma longa rhizome contains three principal curcuminoids, and their ratio matters for high-purity applications — material standardized only to “total curcuminoids” without an individual breakdown can vary batch to batch. At 95% grade, the typical composition is curcumin (~75%, the most-studied curcuminoid), demethoxycurcumin / DMC (~20%), and bisdemethoxycurcumin / BDMC (~5%).
The Bioavailability Problem — and How to Solve It
This is the single most important formulation decision with turmeric. Curcumin is highly hydrophobic and undergoes rapid conjugation and glucuronidation in the gut and liver, so oral absorption from an unenhanced extract is very low. The fix is a delivery format, not a higher dose. A foundational study by Shoba et al. (1998) found that co-administering piperine (20 mg with 2 g curcumin) raised curcumin serum levels by 2,000% in human volunteers[2] — which is why most oral turmeric formats now build in an absorption enhancer.
| Delivery Format | Absorption vs. Standard Extract | Best For |
|---|---|---|
| Standard 95% Curcuminoids | Baseline — low without co-factors | Topical formulations; applications where systemic absorption is not the goal |
| Piperine Co-Administration (added by formulator) | Up to 2,000% higher serum curcumin in published research[2] | Brands that add black pepper extract to the finished formula; not supplied by Valeherb as a pre-blend |
| Phospholipid Complex (Phytosome) | ~29× higher absorption in published comparison[3] | Premium supplement lines; clients avoiding piperine for interaction reasons |
| Water-Dispersible / Micellar | Strong aqueous dispersibility; absorption varies by system | Functional beverages, RTD and clear-liquid formats |
For oral supplement clients, Valeherb supplies the phospholipid (phytosome) complex as its absorption-oriented format. It is also the usual choice when a formulator needs to avoid piperine — relevant for products combined with medications sensitive to CYP3A4 inhibition, since piperine enhances absorption partly by inhibiting drug-metabolizing enzymes.
What Curcumin Is Studied For: Research Context
Demand for standardized curcuminoids is driven by an unusually large body of published research. The summaries below describe what that literature has examined, for context only — they are reported findings from the scientific record, not claims for any Valeherb product, which is supplied as a food and supplement ingredient.
Inflammatory-Pathway and Joint-Comfort Research
Curcuminoids have been studied for their activity on the NF-κB pathway and COX-2 expression in published research, and have been the subject of numerous randomized controlled trials. A systematic review and meta-analysis by Sahebkar & Henrotin (2016) pooled RCTs evaluating standardized curcuminoids in joint-comfort research.[1] These are reported research findings, described here for informational purposes.
Antioxidant and Metabolic Research
As a polyphenol, curcumin demonstrates free-radical scavenging activity in published assays, and antioxidant, cardiovascular, and metabolic endpoints remain active areas of ongoing investigation. These are research areas, not outcomes attributed to any product.
Topical and Cosmetic Applications
Curcumin’s antioxidant profile — including ROS-scavenging and tyrosinase activity reported in research — has made it a widely used active in antioxidant-positioned topical and skin-care formulations. Water-dispersible and nano-curcumin formats are increasingly adopted in cosmetics for improved dispersion compared with standard hydrophobic extract.
Curcuminoid Dose Ranges Used in Research and Formulation
The figures below reflect amounts used in published research and common formulation loading levels — they are reference points for formulators, not therapeutic recommendations.
| Format / Context | Curcuminoid Range | Delivery Format |
|---|---|---|
| General wellness / antioxidant supplement | 200–500 mg/day | Standard or phytosome capsules |
| Higher-dose supplement (research range) | 500–1,500 mg/day, split with meals | Phytosome format |
| Functional beverage | 100–300 mg per serving | Water-dispersible grade only |
| Topical cosmetic | 0.5–3% w/w in finished formula | Standard; nano or water-dispersible for finer dispersion |
Sourcing Criteria: What to Require from Any Supplier
| Criterion | What to Require |
|---|---|
| Curcuminoid Standardization | 95% total curcuminoids by HPLC — with individual breakdown of curcumin, DMC, and BDMC on the COA. Not “95% curcumin” alone |
| Bioavailability Format | Specify: standard, phospholipid complex, water-dispersible, or oil-soluble. Each requires different documentation and pricing |
| Piperine Source (if added to the finished formula) | Piperine from Piper nigrum (black pepper extract), standardized to 95% piperine by HPLC. Not synthetic piperine |
| Heavy Metal Testing | Lead, arsenic, cadmium, mercury (USP <232>) — turmeric is a high-risk botanical for heavy-metal contamination; batch-level testing mandatory |
| Third-Party COA | Curcuminoid content (HPLC), heavy metals, pesticide residues, microbial limits (USP <2021>), moisture — per batch |
| Certifications | Non-GMO, Kosher/Halal for relevant markets. FDA-registered facility and FDA GRAS status (Notice GRN 000686) for US supplement supply chains |
Regulatory Status
- US (FDA GRAS): Curcumin from Curcuma longa holds FDA GRAS Notice No. GRN 000686 — a strong US regulatory pathway for the ingredient. Any structure/function claims on finished products must be substantiated by the marketer and carry the required FDA disclaimer
- EU: Turmeric/curcumin is approved as a food color (E100) and has traditional-use status in several member states. Health claims require submission under EC 1924/2006 — consult regulatory counsel for current approved claim status
- Canada (NHPs): Turmeric/curcumin has a licensed Health Canada NNHPD monograph under the Natural Health Products Regulations — confirm permitted claim language against the current monograph
References
[1] Sahebkar A, Henrotin Y. (2016). Analgesic Efficacy and Safety of Curcuminoids in Clinical Practice: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Pain Medicine, 17(6), 1192–1202. doi: 10.1093/pm/pnv024
[2] Shoba G et al. (1998). Influence of piperine on the pharmacokinetics of curcumin in animals and human volunteers. Planta Medica, 64(4), 353–356. doi:10.1055/s-2006-957450
[3] Cuomo J et al. (2011). Comparative absorption of a standardized curcuminoid mixture and its lecithin formulation. Journal of Natural Products, 74(4), 664–669. doi:10.1021/np1007262
[4] U.S. Food and Drug Administration. GRAS Notice No. GRN 000686 — Curcumin from Curcuma longa. fda.gov/gras
