Despite the play on the name it has nothing to do with Caritin. When all else fails try to make it sound like something already out there.
Do you really want to put your eggs in a homephatic mail order nose drop basket?

In case you're interested, you can also get hair restoration products and Asthma treatments from them, too. Probably, the same ingredients.
On a more serious note I looked into MicroNutra Products. Seems like they have been in trouble for unfounded claims with the FDA and have numerous business complaints against them, too.
Tread lightly, and go buy yourself a box of Walmart brand Zyrtec!