1. Colistin sulfate is the basic peptide antibiotics, mainly for the prevention and treatment of susceptible infections and promote animal growth.
2. Colistin sulfate can be combined with the cell membrane lipoprotein phosphate free, making the cell membrane surface tension decreases, increased permeability, resulting in the cytoplasm outflow of cell death.
3. Colistin sulfate has a strong inhibitory effect against gram-negative bacteria (particularly E. coli, Salmonella, Pseudomonas
aeruginosa, Proteus and Haemophilus, etc.),has no effect on Gram-positive bacteria (Staphylococcus aureus and except hemolytic
streptococcus outside) and fungi.
4. Colistin sulfate oral is difficult to absorb, less toxic, easy to cause drug residues, easy to produce drug resistance.

Shandong Longilat Biotechnology Co., Ltd was established in 2015. It is a high-tech professional and technological enterprise integrating R & D, production, and sales. 

Longilat 's main products are food additives, plant extracts, cosmetic raw materials, feed additives, animal extract, amino acids and vitamins. Most of our products are derived from natural plants. Marketing services are available in many countries around the world. 

1.Can I get some samples?
Yes, usually a 10-20g sample.

2.What's your MOQ?
Our MOQ is flexible, usually 1kg-10kg for a trial order is acceptable.

3. Is there a discount?
Of course, welcome to contact us. Price would be different based on different quantities. For bulk quantity, we will have a discount for you.

4. How to deliver the goods?
≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.

5. What is the shelf life for the products?
Most products shelf life 24-36 months. 

6. What's your delivery time?
Usually, shipment will be made within 7-15 days against confirmed order.

7. How about the validity of the offer? 
Usually, our offer is valid for 1 week. However, validity might vary between different products.