Resveratrol is a natural antioxidant. It has anti-aging, anti-toxic, anti-tumor, lowering blood lipid and other effects. Can be used as health products, dietary supplements, cosmetics, medicine and other fields.

Natural resveratrol has two structures, cis and trans. It mainly exists in trans conformation in nature. The two structures can be combined with glucose to form cis and trans resveratrol glycosides.

Our resveratrol is generally derived from knotweed, grape skins and synthetic. There are mainly the following specifications：

Resveratrol	SPECIFICATION	Appearance	TEST METHOD
From Polygonum cuspidatum	98%	white powder	By HPLC
From Polygonum cuspidatum	50%	Brown Powder	By HPLC
From grape peel	5%	Red powder	By HPLC
Trans Resveratrol(Synthetic)	99%	white powder	By HPLC

Benefits of Resveratrol:

Anti-Aging
Anti-tumor, anti-cancer

3.Prevents the oxidation of low-density lipoprotein and has the potential to prevent and treat cardiovascular diseases (atherosclerosis and coronary heart disease, ischemic heart disease, hyperlipidemia, etc.)

4.Resveratrol also has some other biological activities such as antibacterial, antioxidant, immune regulation, anti-asthma, etc.

Product Name: Trans resveratrol

Botanical source: Polygonum cuspidatum Sieb. Et Zucc

Analysis	Specification	Result
Physical Description
Appearance	Off-white fine powder	Off-white fine powder
Odor & Taste	Characteristic	Characteristic
Particle size	100% through 80 mesh	100% through 80 mesh
Bulk density	35-50g/100ml	41g/100ml
Chemical Tests
Assay (HPLC)	98.0% Min	98.21%
Ash content	3.0% Max	2.25%
Loss on drying	2.0% Max	0.25%
Sulphated	0.5% Max	0.16%
Heavy metals	10.0ppm Max	<10.0ppm
Arsenic (As)	2.0ppm Max	<2.0ppm
Lead (Pb)	3.0ppm Max	<3.0ppm
Mercury (Hg)	0.1ppm Max	<0.1ppm
Cadmium (Cd)	1.0ppm Max	<1.0ppm
Microbiology Control
Total plate count	1000cfu/g Max	<1000cfu/g
Yeast & Mold	100cfu/g Max	<100cfu/g
E. Coli	Negative	Negative
Salmonella	Negative	Negative
Staphylococcus	Negative	Negative
Conclusion	Complies with the in-house standards.
Packing and Storage
Packing: Pack in paper-carton and two plastic-bags inside.
Shelf life: 2 year when properly stored.
Storage: Store in a well-closed place with constant low temperature and no direct sun light.