Polygonum Cuspidatum, commonly known as Giant Knotweed, serves as the primary botanical reservoir for Trans-Resveratrol, a polyphenol compound renowned for its potent antioxidant, anti-inflammatory, and longevity-enhancing attributes. Sourcing this molecule requires an intricate understanding of seasonal crop variations, molecular structures, extraction parameters, and stringent quality control protocols.
As the global demand for longevity-supporting compounds, nutricosmetics, and functional health additives spikes, Chinese manufacturing plants have emerged as the foundational backbone of the supply chain. By utilizing state-of-the-art chromatographic extraction techniques and establishing massive agricultural cultivation networks, China-based suppliers offer an unparalleled blend of cost efficiency, high-volume capacity, and regulatory compliance.
Combining two decades of expert plant extraction with absolute conformity to global food and health standards.
Understanding the chemical thresholds required for pharmaceutical grade, cosmetic grade, and dietary supplement formulations.
In the plant kingdom, Resveratrol exists in both cis- and trans- isomeric configurations. The trans-isomer represents the biologically active structure exhibiting high bioavailability. Sourcing from uncertified vendors carries the risk of heavy-metal pollution, high Emodin residues, and isomerization issues. We guarantee high-level chemical consistency via standard industrial workflows.
| Active Ingredient / Assay | Test Methodology | Specification Target Range | Application Suitability |
|---|---|---|---|
| Trans-Resveratrol 98% | HPLC (High Performance Liquid Chromatography) | ≥ 98.0% (Dry basis) | Anti-aging supplements, skin cosmetics, research chemical compounds. |
| Trans-Resveratrol 50% | HPLC | ≥ 50.0% | General functional food formulation, wellness beverage additions. |
| Polydatin 98% | HPLC | ≥ 98.0% | Cardiovascular health support, high solubility nutraceutical recipes. |
| Emodin Content | HPLC Analysis | ≤ 1.0% down to ≤ 0.1% | Required parameters to prevent digestive discomfort/laxative side effects. |
| Solvent Residue | GC (Gas Chromatography) | Complies with USP <467> (Ethanol only) | Clean-label certification, safe human ingestion standards. |
| Heavy Metals | ICP-MS | Pb ≤ 3ppm, As ≤ 1ppm, Hg ≤ 0.1ppm | Strict conformity with European Union & US FDA regulation. |
Discover the geographic, raw material, and technological advantages that make Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) your ultimate partner.
China's unique climate zones and central mountain ridges represent the optimal habitat for Polygonum cuspidatum. With dedicated agricultural monitoring and wild-craft collection coordinates, our factories ensure access to clean, non-GMO, and chemical-free root rhizomes.
Our three advanced manufacturing units handle the complete lifecycle: raw botanical selection, washing, physical milling, counter-current extraction, multi-stage chromatographic separation, crystallization, and cleanroom vacuum drying.
TRB operates under strict GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER guidelines. Every batch comes with a complete trace history, giving global procurement officers full quality assurance and zero import friction.
The versatility of high-purity Polygonum Cuspidatum Extract makes it a staple ingredient across high-value markets. Our client companies utilize our extract for specific target outcomes:
Formulators integrate Trans-Resveratrol to activate the SIRT1 longevity gene, protect cellular mitochondria, and defend against neural degradation. It acts synergistically with compounds like NMN, Coenzyme Q10, and Alpha-GPC.
Cosmetic-grade 98% Resveratrol exhibits tyrosinase inhibitory properties, facilitating skin-lightening effects, reducing dark spots, and calming UV-induced redness. It is highly valued for its stability in anti-pollution serums.
Sourcing lower concentration extracts (such as 20% or 50% Resveratrol) helps veterinary formulation experts replace antibiotic growth promoters with natural antioxidant defense mechanism boosters.
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB), is the China Leading manufacturer and exporter of herbal extracts and its derivatives for more than 20 years. We operate as a technology-based enterprise combining extensive laboratory research, manufacturing, and direct global distribution.
TRB's rapid development and dedicated service in the plant extract industry over the years, we have been awarded the 2026 "Global Biotechnology and Life Sciences Award" - ''Best Global Herbal Extract Provider 2026''.
Currently, TRB runs three specialized factories: one for herbal extracts, one for bee products, and another dedicated to premium animal extract products. Our facility compliance includes GMP, ISO, HACCP, ORGANIC, FDA, HALAL, KOSHER Certificates. In recent years, our focus has expanded into nootropic innovations, providing brain health, anti-aging, and longevity products that yield excellent feedback worldwide.
TRB is committed to the research and development of pure natural plant extracts, dedicated to the health of all humanity.
Whether you require a custom particle size (micronized powder), specific packaging parameters, or validation documentation (COA, MSDS, Method of Analysis), our technical sales team will assist you immediately.
Critical compliance and chemical insights to streamline your importing workflow.
Your trusted provider of natural compounds, functional sweeteners, essential oils, bee products, and customized botanical solutions. Awarded "Best Global Herbal Extract Provider 2026" for outstanding supply chain performance and product purity.
Fax: 86-25-52867040