bion buildingAESKU.BION (formerly MBL BION) was founded as Bion Enterprises, Ltd in 1978 to address a market need of high quality IFA products.

By focusing specifically on immunofluorescence assays, AESKU.BION is unmatched in providing lot-to-lot consistency and technical expertise to laboratories around the world. Located in Des Plaines, IL, AESKU.BION is FDA registered and ISO 13485:2016 and MDSAP certified with research and development, manufacturing, and administration operating from one facility.


AESKU BION LogoThe vertically integrated operation improves product development and manufacturing efficiencies as well as provides an enhanced customer experience. Our customer service, technical support, and commercial teams are committed to making your science more efficient and effective, from order to delivery and every point in between and after, we deliver uncompromising support whether addressing your specific product questions or ordering.

By providing products in convenient user-friendly, or customized formats, Bion offers a wide product portfolio to meet your testing needs.



Customer Service

If you have any questions, you can reach us by email via This email address is being protected from spambots. You need JavaScript enabled to view it.

Technical Support

For technical assistance you may reach us via email at This email address is being protected from spambots. You need JavaScript enabled to view it. or by telephone at 1-847-544-5044.


All orders for In-Stock items ship within 24 hours of receipt of order. Domestic orders received after 12:00 PM(EST) on Thursday cannot be shipped until the following Monday. Prepaid overnight delivery charges will be added to the invoice.

International shipments will have different freight charges and transit times. If any item you have ordered is temporarily out of stock, you will be notified when that item will be available for shipment. All shipments are F.O.B. Des Plaines, IL.