VDK® Resveratrol, Biosynthesized with a Purity ≥99.5%

Excellent Whiteness

The product boasts excellent whiteness with a value exceeding 90, achieving a significant quality upgrade compared to products from traditional processes. It can better adapt to various application scenarios with high requirements for appearance purity.

Superior Bulk Density and Fluidity

It exhibits excellent bulk density, with a bulk density ≥0.35g/cm³ and a tapped density ≥0.7g/cm³. Combined with outstanding fluidity, it enables smoother and more accurate operations such as feeding and mixing, effectively helping users reduce material residue and loss during use.

Multi-Specification Supply

High Purity and Multi-Gradient Content Specifications: Controllable purity and precise content, suitable for formula requirements of different concentrations
Granular Products: Good dispersibility and convenient feeding, simplifying the production and mixing process
Water-Soluble Products: Strong hydrophilicity and easy solubility, suitable for water-based formulas
Liposomal Products: High bioavailability and excellent stability, meeting the needs of high-end application scenarios
Comprehensive Response to Personalized Customization: Adjust parameters on demand to match exclusive formula requirements

100% Natural Confirmed by C14 Test

End products can be claimed as "natural";

High Product Safety

Produced by GRAS-safe strains with no endotoxin residues. Compared with traditional chemical/plant extraction processes, the product has low solvent residues and no pesticide or plasticizer residues.
The acute oral LD50 of VDK® Resveratrol in ICR mice is ＞5000mg/kg. According to the acute toxicity classification, this product is practically non-toxic.

Results of acute oral toxicity test
Gender		Body Weight (X±SD) (g)				Deaths (heads)	Mortality Rate %
		0	7	14	14-Day Weight Gain
Male		19.9±0.89	24.7±0.97	29.3±0.78	9.5±0.94	0	0
Female		20.7±0.97	24.3±0.88	28.1±1.29	7.4±0.63	0	0

Project	VDK@Resveratrol		Synthesis process		Plant extraction process
Appearance	White or off-white powder		Off-white (grayish-white) powder		Light yellow or brown powder
Odor	Slight odor		Pungent smell		Pungent smell
Content	≥99%		≥99%		50%-98%
Impurities	Maximum single impurity ≤0.10%		Maximum single impurity ≤0.10%		Multiple single impurities ≥0.1%
Impurities	Total impurities ≤0.5%		Maximum single impurity ≤0.10%		Multiple single impurities ≥0.1%
Solvent residues	Ethanol ≤1000ppm, no characteristic solvent		Ethanol ≤1500 ppm,		Methanol≤1000ppm
			Toluene ≤20 ppm		Ethanol≤1500 ppm
			/		Other solvent residues are present
Pesticide residues	No pesticide residues		No pesticide residues		BHC pesticide residues, etc.
Other risks	No plasticizer residues		There may be high-risk impurities in the chemical synthesis process		Emodin impurities, aflatoxins, polycyclic aromatic hydrocarbons, and other harmful substances

Comprehensive Third-Party Testing

Authoritative SGS test reports can be provided for heavy metals, pesticide residues, microbial residues, etc.

Purity Verification

VDK® Resveratrol has a purity of ≥99.5%, with an all-trans structure and no impurities such as cis-resveratrol or emodin.
(The pink line represents VDK® Resveratrol)

Quality Specifications

Appearance			Off -white powder	White powder	Visual
Moisture(%)			≤0.5	≤0.5	CP2020
Ash(%)			≤0.5	≤0.5	USP
Identification			HPLC	HPLC	HPLC
Identification			IR	IR	IR
Assay (On dry basis)			99.0-101.0%		HPLC
Bulk Density(g/ml)			≥0.35		USP<616>
Tapped Density(g/ml)			≥0.70		USP<616>
Related Substances		Cis-resveratrol %	Not detected		HPLC
		Emodin %	Not detected		HPLC
		Single impurity%	Not detected		HPLC
		Total impurities%	≤0.5		HPLC
Purity%			≥99.0%		HPLC
Residual solvents ppm(Ethanol)			≤1000		GC
Heavy Metals			≤ 10 ppm		ICP-MS
Pb			≤ 0.5 ppm		ICP-MS
Cd			≤ 1.0 ppm	≤ 1.0 ppm	ICP-MS
As			≤ 1.0 ppm	≤ 1.0 ppm	ICP-MS
Hg			≤ 0. 1 ppm	≤ 0. 1 ppm	ICP-MS
Ni			≤ 0.05ppm	≤ 0.05ppm	GB5009.138-2024
Particle Size			95% through 80 mesh	95% through 80 mesh	CP2020
Microbiology	Total Plate Count		≤ 1000 CFU/g	≤ 1000 CFU/g	CP2020<1105>
	Yeast & Mold		≤ 100 CFU/g	≤ 100 CFU/g	CP2020<1105>
	E.coli,Salmonella, Staphylococcus aureus		Negative	Negative	CP2020<1106>
	Coliforms		≤ 0.92MPN/g	≤ 0.92MPN/g	GB 4789.3-2016
	Listeria monocytogenes		Negative	Negative	GB.4789.30-2015
Storage			Normal temperature, airtight, dark storage.

VDK® Natural Resveratrol

Core Production Process

Core Advantages