Xi'an Rainbow Biotech Co.,Ltd
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Evening Primrose Extract

Evening Primrose Extract

Product Name:Evening Primrose Extract
Other Name:Evening Primrose Extract
Latin Name: Oenothera biennis
Extration Solvent: Water/ Ethanol
Plant Part Used: whole herb
Specification:10:1 20:1(TLC)
Appearance:Brown yellow powder

Basic Information

Product Name:Evening Primrose Extract             

Other Name:Evening Primrose Extract

Latin Name: Oenothera biennis

Extration Solvent:  Water/ Ethanol

Plant Part Used: whole herb

Specification:10:1 20:1(TLC)

Appearance:Brown yellow powder


Evening Primrose is a North American native biennial plant. The plants are very tall, often 4 to 5 feet or more in height. The flower spikes grow on auxiliary branches all along the stalk. They are about 2-1/2 inched in diameter, bright yellow and have four petals, a cross shaped stigma and a refluxed calyx (leaves under petals).

Evening primrose extract is found in this century the most important nutrition drugs.Evening primrose extract can cure diseases, regulate blood fat,for high cholesterol, high blood fat cause coronary artery infarction, atherosclerosis and cerebral thrombus wait for disease have remarkable curative effect.

Evening primrose extract still can treat various sclerosis, obesity, diabetes, rheumatoid arthritis and schizophrenia, in the laboratory also found evening primrose extract inhibit cancer cell growth role. Clinical use evening primrose extract can prevent cardiovascular obstruction, lower cholesterol so used to prevent cardiovascular disease. 

Product Description

Description :


Brown Yellow fine powder  



Particle size

100% pass 80 mesh

Physical :

Loss on drying




Chemical :

Solvent residual(Ethanol)


Heavy metals


Arsenic (As)




Microbial :

Total microbacterial count


Total Yeast & Mold







Packed in paper-drums with two plastic-bags inside.

N.W.:25kgs .I.D.35cm×H51cm


Store in a well-closed container away from moisture. 

Two years with properly stored.

Main Function

1) Lower blood pressure;

2) Reducing risks of blood clotting;

3) Stimulating the immune system;

4) Regulating brain function.

5)helpful for sleeping and skin;

6)relieve cough, asthma, gastrointestinal difficulties and menstrual discomforts.


1.Used in pharmaceutical, health care products,eveing primrose extract used as a raw material;

2.Used in industry,evening primrose extract used as a kind of natural flavor and its fibre in the stem for paper manufacture.

3.Used in cosmetics.


Production Flow

Production Flow-Rainbow Biotech.jpg

Our Services

Sample Time

2-3 working days with free samples




25 KGS

Payment Terms

T/T in advance, L/C, Western union, Money gram, Escrow

Delivery Time

5-7 working days after receiving the deposit

Shipment  By sea, by air, DHL, UPS, FEDEX, TNT etc

FOB Port

Tianjin,  Beijing, Shanghai

Why Choose Us

1.Self-own GAP standard planting base of raw material over 300000 square meters

2.Strong technical supports from our factory and research center

3.Suggest appropriate solutions to your project

4.Full set of technical data, as COA, MSDS, Process Flow, Test Reports, etc

5.Provide information of your shipment in-time

6.Assistance on the customs clearance

7.The quality problem of goods is responsible by us

Packaging Shipping.jpg

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Address: Rm 701, B Building, Haibo Plaza, Fengcheng Rd 9#, Xi'an ETDZ, 710018,Shaanxi,China
Tel: +862981319106