Originally Posted by
Often1
What it does not answer are the also details not in your OP such as the specific location where the product is manufactured and purchased and where in the US it is destined.
Emailing is not the way to go here. Your post is a bit confusing because you say that this for a friend, but it then shifts to the first person. So, whether it is for you or for a friend, call CBP and ask about the specific products and provide the specific destinations.
The OP's location, as stated below the username, is in the UK. The product's country of origin, according to the linked website, is the United Kingdom.
It would appear to me that an American friend asked
Cassie55 to bring that item for her/him.
My assumption is that most CBP officers will treat this product like herbal teas. I don't expect there to be a problem, but make sure to declare it.