Astilbin Extract

Astilbin Extract is a naturally occurring dihydroflavonol glycoside that is primarily sourced from the rhizomes of Smilax glabra Roxb, commonly known as Tu Fu Ling. At China Extract Warehouse, our Astilbin extract powder is manufactured through a fully standardized extraction and purification workflow, guaranteeing a high 98% active concentration verified via HPLC testing.
Widely recognized for its unique "selective immunosuppressive" properties, Astilbin has emerged as a high-demand active ingredient for pharmaceutical formulation development targeting chronic inflammation, autoimmune system support, and management of elevated uric acid levels linked to gout. As a top-tier Chinese production facility, we ensure all our Astilbin product is 100% plant-origin, non-GMO, and completely free of harmful residual solvents. No matter if you plan to purchase bulk Astilbin for lab research or large-scale commercial manufacturing, China Extract Warehouse delivers some of the most competitive wholesale pricing and consistently stable quality among all leading global suppliers in the plant extract space.

★ 98% Astilbin purity guaranteed via HPLC testing, perfectly suited for high-end pharmaceutical and laboratory application scenarios.
★ One-of-a-kind function that suppresses overactive immune responses without disrupting the body's normal overall immune performance.
★ Produced from high-quality selected Smilax glabra raw materials using eco-friendly, low-impact solvent technology.
★ Order directly from our China-based production site to access full end-to-end batch traceability and the best possible wholesale rates.

Basic Product Information

Uses of Astilbin Extract

Astilbin comes with verified insecticidal, antioxidant, antibacterial and anti-inflammatory activities. It can serve as a highly effective therapeutic agent for arthritis, delivering effects comparable to cyclosporine A but with much lower associated toxicity. Its working mechanism involves selective suppression of lymphocyte function by reducing MMP and NO production. Astilbin also provides early-stage renal protection for cases of diabetic nephropathy (DN), by inhibiting the generation of transforming growth factor-beta1 (TGF-beta1) and connective tissue growth factor (CTGF). Astilbin also alleviates contact hypersensitivity via a distinct mechanism that enables negative cytokine regulation by stimulating IL-10 activity, which sets it apart from the conventional immunosuppressant cyclosporin A.

Quality Test Report

Where To Buy Astilbin Extract Globally?

China Extract Warehouse is a trusted supplier of premium high-quality nutritional compounds, with Astilbin Extract as a core offering in our full mineral metabolism product portfolio. We serve customers across every global region, providing both high-purity raw materials and professional technical guidance to help clients develop efficient, compliant nutritional end products.
★ China Extract Warehouse has focused on the R&D of plant-derived active ingredients for over 14 years, holding multiple national invention patents for our extraction and purification technologies.
★ Full set of international certification systems: ISO9001, ISO22000, Kosher, Halal, SGS and other authoritative industry accreditations.
★ Supported by a professional, highly experienced R&D team.
★ Diversified full product line: our raw materials are used by nearly all top global brand partners across the pharmaceutical, dietary supplement, cosmetic, animal nutrition, and functional food sectors.

FAQ

★ What is the natural source of Astilbin Extract?
Our Astilbin Extract is primarily derived from the rhizome of Smilax glabra (tufuling) or the leaves of Engelhardia roxburghiana. Both raw material sources are sustainably harvested, and every batch is tested via HPLC to confirm correct botanical identity.

★ What purity and specifications do you offer for Astilbin Extract?
We supply Astilbin Extract across a full range of 10% to 98% purity grades verified via HPLC. Our most common standard grades are 10%, 20%, 50%, 90%, and 98%. It appears as fine powder, with color ranging from yellow-brown to off-white (higher purity grades have lighter color). Custom blended ratios with other flavonoids are available upon request.

★ Is Astilbin Extract water-soluble or oil-soluble?
Astilbin has moderate water solubility (around 2–5 mg/mL at 25°C) and is slightly soluble in ethanol. It is not oil-soluble. For customers needing enhanced solubility for beverage applications, we offer a water-dispersible formulation produced with only food-grade emulsifiers.

★ What is the particle size of Astilbin Extract?
Our standard regular mesh size is 80–100 mesh, with excellent fluidity that makes it very easy to mix evenly during food and supplement production processes.

★ What extraction process do you use for Astilbin Extract?
We adopt a full production workflow of ethanol extraction, concentration, macroporous resin purification, and spray drying, which ensures very high retention of the active Astilbin ingredient.

★ Does it comply with EU and FDA regulations?
Our product meets EU food ingredient standards and FDA requirements, and is accompanied by a complete set of COA, MSDS, and all required customs clearance documents.

★ Can you provide free samples?
We offer 10–20g free samples for laboratory testing; customers only need to cover the international shipping cost for sample delivery.

Jennifer Zhao