How do I tell products apart when the vials look identical?

The vials themselves don't have labels -- the identifying code is on the plastic kit (container) they come in. Match the code on each kit to your order confirmation or delivery email. Some products also have different cap colors on the vials, which can help distinguish them. If you've already removed the vials from their kits and can't tell them apart, contact us with your order number and a photo -- we'll help identify each one.