Ebay is a great marketplace, where you can buy some really good stuff. But when it comes to your pet health is better not to risk.
Yes, probably you can find Biheldon a couple of pounds cheaper on Ebay, but is it worth the risk? There are many people who sell fake Biheldon on Ebay or already expired.
It’s better to order from a reputable online retailer like Biheldon.com who offers fast dispatch and tracked shipping.