I don't know about this particular product.
I do know that there are MANY herbal / natural / "new" / "secret" treatments for herpes - none of whom have been officially condoned by the FDA.
One tricky thing about herpes is that the symptoms tend to get better as time goes on. So no matter what you do - or don't do - the symptoms will clear up, and your outbreaks will usually come less and less frequently. This is why it is so important to have studies that include a "control group" - people who DON'T use the medication, but still participate in the study. It lets you know what would have happened without the medication.
The only thing that I KNOW that helps herpes are acyclovir (Zovirax), famcyclovir (Famvir), and valcyclovir (Valtrex).
Many people report some benefit from home remedies. L-lysine supposedly helps, as do certain diets or avoiding certain foods. I've never heard of anyone getting a whole lot of relief, though, from herbal or natural products that were specifically formulated for herpes.
If it were me, I would save my money. But if you really wanted to try it, it probably wouldn't hurt you.