Biolang supply Voacanga Africana and Vinca Minor Herbal Extract Vinpocetine CAS 42971-09-5

Vinpocetine is a semisynthetic derivative of the alkaloid vincamine, an extract from the periwinkle plant. Vinpocetine is reported to have cerebral blood-flow enhancing and neuroprotective effects, and is usedas a drug in Eastern Europe for the treatment of cerebrovascular disorders and age-related memoryimpairment.  

 

 
Q1:Which kind of payment terms do you accept?
For small order,you can pay by T/T or Western Union ,nomal order by T/T to our company account.

Q2:Can you give me a discount price?
Surely,It depend on your quantity.

Q3:How can I get a sample?
Free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order
in the future. 

Q4: How to confirm the Product Quality before placing orders?
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests. 

Q5:How do you treat quality complaint?
First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send
you free goods for replacement or refund your loss.